ИСКРОБЕЗОПАСНЫЙ СОЕДИНИТЕЛЬНЫЙ БЛОК С СЕТЕВЫМ ИНТЕРФЕЙСОМ, ИСКРОБЕЗОПАСНЫЙ ПРИБОР И СЕТЕВОЙ ИНТЕРФЕЙС ДЛЯ НЕГО

Изобретение относится к искробезопасному соединительному блоку для искробезопасных электрических приборов, а также к контроллеру и сетевому интерфейсу для использования там же. Техническим результатом является обеспечение возможности для множества сетевых абонентов подсоединиться к сети во взрывоопасной зоне с меньшими связанными с электропроводкой сложностями. Искробезопасный соединительный блок с сетевым интерфейсом для искробезопасных приборов, работающих во взрывоопасных зонах, имеющий корпус, разъем подачи напряжения питания, разъемное соединение для подсоединения передающего кабеля искробезопасного прибора через передающий кабель и разъединяющую схему. В качестве сетевого интерфейса имеется множество разъемных соединений одного и того же типа. Причем каждый из них предваряется отдельной разъединяющей схемой, а разъем подачи напряжения питания образует центральное соединение питания с отдельными жилами подачи питания для каждого разъемного соединения, где каждый из которых имеет по ...

ЗАЩИТНОЕ УСТРОЙСТВО ВНЕШНЕГО ТЕРМИНАЛА И СИСТЕМА ЗАЩИТЫ

Группа изобретений относится к области компьютерной безопасности, в частности к защитному устройству внешнего терминала и к системе защиты. Технический результат заключается в повышении безопасности хоста и устранении угроз безопасности, обусловленных использованием интерфейсов. Защитное устройство внешнего терминала включает: модуль управления интерфейсом, используемый для использования одного или нескольких внутренних интерфейсов и одного или нескольких внешних интерфейсов, при этом внутренние интерфейсы соединены с соответствующими интерфейсами защищенного базового компьютера, а также внешних интерфейсов, сконфигурированных для получения доступа к одному или нескольким внешним устройствам; и управляющий модуль системы, используемый для подключения модуля управления интерфейсом и контроля проверки подлинности внешнего устройства при доступе к одному или нескольким внешним интерфейсам на модуле управления интерфейсом. 2 н. и 10 з.п. ф-лы, 4 ил.

СИСТЕМА ДЛЯ СОГЛАСОВАНИЯ ЛОКАЛЬНОЙ СЕТИ ПЕРЕДАЧИ ДАННЫХ И ГОЛОСА И АНАЛОГОВОЙ ТЕЛЕФОННОЙ ЛИНИИ

... 1. Система адаптации обычной телефонной линии для использования в качестве локальной сети передачи данных и голоса, включающая в себя следующие компоненты: устройство (1), предназначенное для определения состояния линии (свободна/занята), подающее сигнал о замыкании или размыкании линии (7); устройство (2), предназначенное для замыкания или размыкания линии (7), предоставляющее передаваемые данные; устройство (3), предназначенное для обнаружения обычного вызова; модуль (4) внешних соединений; схема (5) питания; устройство (6) управления; протокол связи; отличающаяся тем, что в указанной системе используется источник электропитания и шина непосредственно аналоговой телефонной линии (7) без использования внешнего источника питания или независимой проводки; указанное устройство (6) управления, передающее при приеме сигнала через модуль (4) соединений соответствующий сигнал на устройство (2) для размыкания и замыкания линии (7), передающий требуемые данные посредством сообщений, причем указанное ...

ПОЛЕВОЕ УСТРОЙСТВО ПЕРЕДАЧИ ЭНЕРГИИ

... 1. Полевое устройство, содержащее: ! модуль связи полевой шины, удобно связываемый с контуром обмена информацией о процессах в полевой шине; ! модуль питания, связываемый с контуром обмена информацией о процессах в полевой шине, причем модуль питания выполнен с возможностью полностью снабжать полевое устройство энергией, полученной от контура обмена информацией о процессах в полевой шине; ! контроллер, связанный с модулем связи полевой шины и с модулем питания; ! множество выводов, удобно связанных с модулем питания и связываемых со вторым контуром обмена информацией о процессах не в полевой шине, для обеспечения электроэнергией через второй контур обмена информацией о процессах не в полевой шине. ! 2. Полевое устройство по п.1, в котором контроллер выполнен с возможностью избирательно побуждать модуль питания обеспечивать электроэнергией второй контур обмена информацией о процессах не в полевой шине. ! 3. Полевое устройство по п.1, дополнительно содержащее второй модуль связи неполевой ...

ПИТАЕМЫЕ УСТРОЙСТВА В СЕТЕВОЙ СИСТЕМЕ ПИТАНИЯ ПО ETHERNET И СПОСОБЫ ДЛЯ НЕГО

АНАЛОГОВЫЙ ИНТЕРФЕЙС ПОВЫШЕННОЙ НАДЕЖНОСТИ ДЛЯ УСТРОЙСТВА СЕТЕВОЙ СВЯЗИ, ЭКСПЛУАТИРУЕМОГО НА ЖЕЛЕЗНОДОРОЖНОМ ТРАНСПОРТЕ

... 1. Аналоговый внешний интерфейс повышенной надежности, взаимно соединяющий сетевое устройство передачи данных с сетью на основе двух проводников, содержащий входные и выходные выводы, предназначенные для соединения с сетевым устройством передачи данных; сетевые выводы, предназначенные для соединения с сетью на основе двух проводников; соединительную схему, имеющую первый, второй и третий наборы контактов, первый соединительный канал между первым и вторым наборами контактов, и второй соединительный канал между первым и третьим наборами контактов, причем первый и второй соединительные каналы обеспечивают изоляцию, согласование полного внутреннего сопротивления и передачу энергии между соответствующими наборами контактов; усилитель, вход которого соединен с входными проводниками, и выход которого соединен со вторым набором контактов соединительной схемы; схему фильтра общего режима, подключенную между первым набором контактов соединительной схемы и сетевыми выводами; аттенюатор, вход которого ...

Hibernationssystem für Netzwerk

INFORMATIONSPROZESSOR, ANZEIGE STEUERUNGSVERFAHREN SOWIE AUFGEZEICHNETES MEDIUM

Energiezähler, vorzugsweise Multienergiezähler

Energiezähler zum Erfassen einer von einer Klimazentrale (2) mittels eines in einem Fluidkanal (3) strömenden gasförmigen Fluids an einen Verbraucher (4a, 4b, 4c) gelieferten Energiemenge, mit mehreren Energiemesssensoreinrichtungen (6) wobei je eine Energiemesssensoreinrichtung (6) an einer Messstelle (31) des Fluidkanals (3) anordenbar und mit diesem Fluidkanal verbindbar ist und in und/oder an dem Fluidkanal angeordnet einen Fluidtemperatursensor (64) und einen Durchflusssensor (63) aufweist, und mit einer Auswerteeinrichtung (7), die zum Erfassen von Energiemengen mit den Energiemesssensoreinrichtungen (6) verbunden ist, dadurch gekennzeichnet, dass die Auswerteeinrichtung (7) zum Anschluss einer unterschiedlichen Anzahl von Verbrauchern (4a, 4b, 4c) und/oder Energiemesssensoreinrichtungen (6) ausgebildet ist, indem vorgesehen ist, dass a) die Auswerteeinrichtung (7) mehrere Eingänge (72, 73) zum Anschluss einer Energiemesssensoreinrichtung (6) aufweist, und dass die Auswerteeinrichtung ...

Verfahren und Vorrichtung zur raumzeitlichen Steuerung der Elektroenergieaufnahme eines Telekommunikationsnetzes in Abhängigkeit von Zuständen des Energieversorgungssystems

Verfahren zur raumzeitlichen Steuerung der Elektroenergieaufnahme eines Telekommunikationsnetzes in Abhängigkeit von Zuständen in einem Stromnetz, das für die Versorgung des Telekommunikationsnetzes in dem Raum und der Zeit zuständig ist, wobei das Stromnetz eine zentrale Stromnetzüberwachungseinheit aufweist, die den Betriebszustand von zumindest einem Teil der Komponenten im Stromnetz überwacht, und das Telekommunikationsnetz eine Telekommunikationssteuereinheit aufweist, die zumindest einen Teil der Telekommunikationsnetzwerkkomponenten im Telekommunikationsnetzwerk steuert, wobei die Stromnetzüberwachungseinheit und die Telekommunikationssteuereinheit miteinander über ein Netzwerk verbunden sind, um digital Informationen auszutauschen, umfassend die folgenden Schritte: Detektion einer Überlastung des Stromnetzes durch zu geringe Stromversorgung in einem räumlichen Bereich, durch Austausch von Informationen zwischen der Stromnetzüberwachungseinheit und der Telekommunikationssteuereinheit ...

Bus communication apparatus e.g. all-digital, serial, two-way communications system, has coupling device and/or subscriber units formed to perform coupling device current modulation, where gradient of currents is limited to maximum value

The apparatus (10) has subscriber units (14) established for execution of modulation of subscriber current (IT) corresponding to a communication protocol. A coupling device (17) and/or the subscriber units are formed to perform another modulation of coupling device current (IK) flowing into the coupling device, where gradient of the subscriber currents in the former modulation lies above a gradient maximum value of the latter modulation. The gradient of the currents in the latter modulation is limited to the gradient maximum value.

Parametrierung einer intelligenten Einheit über Spannungsversorgungseinrichtung

Anordnung zur Anpassung wenigstens einer intelligenten Einheit (100) an eine Applikation und/oder einen Einbauort der intelligenten Einheit innerhalb einer Automatisierungsanlage, wobei die Anordnung eine Spannungsversorgungseinrichtung (200, 250) umfasst, an welche wenigstens eine intelligente Einrichtung (100) zum Betreiben der intelligenten Einheit (100) für eine bestimmte Applikation und/oder einen bestimmten Einbauort innerhalb der Anlage anzuschließen ist, und eine Konfigurationseinrichtung (300) umfasst, welche dieser Applikation und/oder diesem Einbauort der wenigstens einen anzuschließenden intelligenten Einheit (100) zugeordnet ist, wobei in der Konfigurationseinrichtung (300) applikations- und/oder ortsbasierte Konfigurationsdaten und/oder Verhaltensbeschreibungsdaten gespeichert sind, die nach Anschluss der intelligenten Einheit (100) von der Konfigurationseinrichtung an eine Logik (190) zum Verarbeiten der Daten zur Konfiguration und/oder Parametrierung dieser intelligenten ...

Netzwerk zur Daten- und Energieübertragung

VORRICHTUNG ZUR BESTIMMUNG UND/ODER ÜBERWACHUNG EINER PHYSIKALISCHEN ODER CHEMISCHEN GRÖSSE

Power over Ethernet-basiertes Feldgerät der Automatisierungstechnik

Power over Ethernet-basiertes Feldgerät der Automatisierungstechnik umfassend:- ein Feldgerätegehäuse (61);- ein Sensor und/oder Aktor (62) zum Bestimmen und/oder Stellen einer Prozessgröße;- einen am Feldgerätegehäuse angeordneten Ethernetanschluss (63) zum Anschließen des Feldgerätes an ein Ethernet-basiertes Netzwerk (70), so dass das Feldgerät über den Ethernetanschluss mit Energie versorgbar ist und Daten mit dem Netzwerk austauschen kann;- zumindest einen am Feldgerätegehäuse (61) angeordneten weiteren speisenden Feldgeräteanschluss (64) zum Anschließen zumindest eines weiteren Feldgerätes (20, 30),- eine Feldgeräteelektronik (65) die dazu eingerichtet ist, den zumindest einen weiteren Feldgeräteanschluss (64) mit Energie zu versorgen, so dass ein an dem weiteren Feldgeräteanschluss (64) angeschlossenes weiteres Feldgerät (20, 30) mit Energie versorgbar ist und ferner dazu eingerichtet ist, Daten mit dem weiteren Feldgerät (20, 30) auszutauschen, so dass Daten zwischen dem Ethernet-basierten ...

Elektronikgerät und Kommunikationseinheit

Elektrisches Energieversorgungsgerät (1) für die elektrische Energieversorgung elektrischer Komponenten aus einer Energiequelle, wobei das Energieversorgungsgerät (1) wenigstens eine Kommunikationseinheit (3) aufweist, durch die das Energieversorgungsgerät (1) zur Datenkommunikation mit einem externen Computergerät (8) eingerichtet ist, wobei das Energieversorgungsgerät (1) Anschlüsse (9) zur Abgabe der elektrischen Energie für die Energieversorgung der elektrischen Komponenten aufweist, dadurch gekennzeichnet, dass das Energieversorgungsgerät (1) als weiteren Anschluss wenigstens einen steuerbaren Digital- oder Analog-Ausgangsanschluss (4) und/oder wenigstens einen Digital- oder Analog-Eingangsanschluss (5) aufweist, wobei im Falle eines steuerbaren Digital- oder Analog-Ausgangsanschlusses (4) dieser von dem externen Computergerät (8) über die Kommunikationseinheit (3) steuerbar ist und im Falle eines Digital- oder Analog-Eingangsanschlusses (5) ein Eingangswert von diesem Eingangsanschluss ...

SYSTEM ZUR ANPASSUNG EINES LOKALEN DATEN- UND SPRACHÜBERTRAGUNGSNETZWERKS AN EINE ANALOGE TELEFONLEITUNG

LEISTUNGSVERWALTUNG IN EINEM NETZWERKELEMENT MIT LEITUNGSSTROMVERSORGUNG

Effizienter Stromsparmodus für WLAN-Kommunikationssysteme

Eine WLAN(drahtloses Nahbereichsnetzwerk)-Kommunikationseinrichtung zum Ausführen einer Kommunikation in einem WLAN-Netzwerk wird bereitgestellt, die eine physikalische Verbindungseinheit, einen physikalischen Verbindungsoszillator und eine Steuereinheit umfasst. Die physikalische Verbindungseinheit dient zum Bereitstellen einer physikalischen Verbindung der WLAN-Kommunikationseinrichtung mit einem drahtlosen Kommunikationsmedium. Der physikalische Verbindungsoszillator dient zum Bereitstellung eines physikalischen Verbindungstaktsignals für die physikalische Verbindungseinheit. Die Steuereinheit dient zum Steuern des Betriebs des physikalischen Verbindungsoszillators. Die WLAN-Kommunikationseinrichtung ist in einem Kommunikationsmodus und in einem effizienten Stromsparmodus betreibbar. Die Steuereinheit ist ausgebildet, den physikalischen Verbindungsoszillator zu deaktivieren, wenn in den effizienten Stromsparmodus übergegangen wird. Die Ausführungsformen können eine stärkere Verringerung ...

BUSTEILNEHMER

Architekturen und Verfahren zur Verwaltung von Fahrzeuginternen vernetzten Steuerungen und Vorrichtungen

Offenbart werden Steuerungsalgorithmen und Systemarchitekturen zur Verwaltung des Betriebs vernetzter Steuerungen und Vorrichtungen, einschließlich Fahrzeuge mit einem Bordnetz von elektronischen Steuergeräten (ECU) und Steuerlogik zum Regeln des Ruhens und Aktivierens dieser ECUs. Ein Verfahren zur Verwaltung des fahrzeuginternen Netzwerks von ECUs in einem Kraftfahrzeug beinhaltet: das Ermitteln von Statusvektoren für eine Gruppe von ECUs, wobei jeder Statusvektor angibt, ob das entsprechende ECU aktiv oder nicht aktiv ist; das Ermitteln der Vorrichtungsrollen für diese ECUs - Slave oder Master; das Ermitteln einer zugewiesenen Hierarchie zum Auswählen der ECUs als Master-Vorrichtung; das Empfangen eines Modusänderungssignals, das anzeigt, dass ein ECU beabsichtigt, in den Ruhezustand oder in den aktivierten Zustand überzugehen; und in Reaktion darauf, das Modifizieren der jeweiligen Vorrichtungsrolle für ein ECU vom Master zum Slave und der jeweiligen Vorrichtungsrolle für ein anderes ...

Passagierversorgungsmodul für Fahrzeuge sowie Verfahren zu dessen Betrieb

Die Erfindung betrifft ein Passagierversorgungsmodul (1) für Fahrzeuge, insbesondere für ein Verkehrsflugzeuge, sowie ein Verfahren zum Betrieb eines solchen Passagierversorgungsmoduls (1) .Das Passagierversorgungsmodul (1), welches zur Versorgung mit elektrischer Leistung über einen Stromversorgungsbus (30) ausgebildet ist, umfasset wenigstens eine Buchse (3) einer zur Datenübertragung geeigneten elektrischen Steckverbindung zum Anschluss externer Geräte (40, 50) und einer mit der Buchse (3) verbundenen Steuerungseinheit (6). Die Steuerungseinrichtung (6) ist dazu ausgebildet, bei Verbinden eines Gerätes (40, 50) mit einer Buchse (3) von diesem über die so hergestellte Datenverbindung einen Token (41, 51) abzufragen und nur bei positiver Überprüfung des Tokens (41, 51) anhand unmittelbar bei der Steuerungseinheit (6) vorliegenden Prüfinformationen eine ansonsten gesperrte Funktion des Passagierversorgungsmodul (1) zu aktivieren.Das Verfahren betrifft den Betrieb eines solchen Passagierversorgungsmoduls ...

Schutzvorrichtung für ein Endgerät angeschlossen an ein lokales Netz mit Fernspeisung für das Endgerät

Redundanzstrukturadaptive Stromzuführung für Kommunikationsbaugruppen

Eine Stromversorgungseinrichtung für mehrere in einem gemeinsamen Gehäuse untergebrachte Kommunikationsbaugruppen weist mehrere Steckplätze für die Kommunikationsbaugruppen mit jeweils zwei Anschlußkontakten (3, 3') sowie mehrere Stromversorgungsanschlüsse (2) zum Anschluß an mehrere externe Stromquellen auf. Die Stromversorgungsanschlüsse (2) sind so mit den Anschlußkontakten (3, 3') der Steckplätze verdrahtet, daß allein durch Auswahl von an den Stromversorgungsanschlüssen (2) angeschlossenen externen Stromquellen a) jede der Kommunikationsbaugruppen mit zwei verschiedenen der externen Stromquellen verbindbar ist, und b) jede der Kommunikationsbaugruppen mit einer externen Stromquelle, jedoch ein Paar von zwei Kommunikationsbaugruppen mit zwei verschiedenen externen Stromquellen verbindbar ist. So können mit einer gemeinsamen Stromversorgungseinrichtung, die beispielsweise an der Rückwand des Gehäuses angeordnet ist, durch einfaches Umstecken der Stromversorgungsanschlüsse paarweise vorhandene ...

Internet-of-Things Modul

Internet-of-Things Modul (1), mit einer ersten Schnittstelle (3a), über welche das Modul (1) mit einer hybriden Single Pair Ethernet Leitung zum Daten- und/oder Befehls-Austausch und zur Spannungsversorgung koppelbar ist, einem Spannungsregler (4) zum Umwandeln der an der ersten Schnittstelle (3a) anliegenden ersten Spannung in eine zweite Spannung zur Versorgung des Moduls (1), einem Controller (5) für eine IP-basierte Kommunikation über die hybride Single Pair Ethernet Leitung (11), einer zweiten Schnittstelle (3b), über welche das Modul (1) mit einem Sensor und/oder Aktorzum Daten-, Signal- und/oder Befehls-Austausch und zur Spannungsversorgung koppelbar ist.

Passagierversorgungsmodul für Fahrzeuge

Passagierversorgungsmodul (1) für Fahrzeuge, wobei das Passagierversorgungsmodul (1) zur Versorgung mit elektrischer Leistung über einen Stromversorgungsbus (30) ausgebildet ist, umfassend wenigstens eine Buchse (3) einer zur Datenübertragung geeigneten elektrischen Steckverbindung zum Anschluss externer Geräte (40, 50) und einer mit der Buchse (3) verbundenen Steuerungseinheit (6), dadurch gekennzeichnet, dass die Steuerungseinrichtung (6) dazu ausgebildet ist, bei Verbinden eines Gerätes (40, 50) mit einer Buchse (3) von diesem über die so hergestellte Datenverbindung einen Token (41, 51) abzufragen und nur bei positiver Überprüfung des Tokens (41, 51) anhand unmittelbar bei der Steuerungseinheit (6) vorliegenden Prüfinformationen eine ansonsten gesperrte Funktion des Passagierversorgungsmodul (1) zu aktivieren.

Leistungsbegrenzer für AS-Interface und 24V-DC Netze

Leistungsbegrenzer zum Anschluss an einen ersten Stromkreis mit einen Ausgang zur Versorgung eines zweiten Stromkreises mit begrenzter Leistung dadurch gekennzeichnet, dass sich das Modul keine weiter Stromversorgung für die interne Elektronik benötigt und beide Stromkreise sowohl AS-Interface oder 24 V DC-Stromkreise sein können.

MULTIMEDIA-SCHNITTSTELLENVORRICHTUNG, INFORMATIONSVERARBEITUNGSVERFAHREN, ENTSPRECHENDER INFORMATIONSTRÄGER UND COMPUTERPROGRAMM

Circuit for supplying power to a network termination unit of a message transmission system

Powered device interface circuit

Method and device for dynamic adjustment of network operating voltage

Redundant powered device circuit

Two wire communication system

A two wire communication system capable of transmitting data and transferring power by means of an electrical bi-polar waveform across a two wire conductor from a controller in communication with said two-wire conductor to at least one module in communication with said controller and capable of transmitting data from said module to said controller; and a remote electrical device in communication with said controller. Usable data may be continuously transmitted across said two wire conductor independent of and during power transmission between the controller and the at least one module without loss of data transmission time and without affecting the transfer of power to the at least one module. The data is transmitted across the two wire conductor to the modules by pulse duration signals at the same time power is transmitted to said modules. The system is capable of using up to 100 % of transmission time to transmit data without affecting transfer of power to the at least one module.

Signal superimposition

Method and apparatus for communication in well enviroment

A technique enables the transfer of signals in subsea well applications. The technique allows a communication signal and a power signal to be transferred through a single penetration disposed through a tubing hanger of a subsea tree. The communication signal and/or the power signal is converted so as to enable communication along a twisted pair for transfer downhole.

Wireless access point

System and method for supplying uninterruptible power to a PoE device

Apparatus to control the circuits of USB ports to cause an attached devices to change between the states of high current charging, data transmission and disco

A system for controlling one or more handheld electronic devices (HEDs) each attached to the system by a respective universal serial bus (USB) output port 5. The system comprising a microcontroller 2, a bias circuit 3 and a switch 1. Wherein the microcontroller controls the bias circuit and the switch to selectively cause some or all of the attached HEDs to switch between a high-current charging state, a data-transmission state and a simulated disconnected state without the need for physically disconnecting HEDs from the system or resetting a device connected to the input port 4. Bias resistors may be used to cause HEDs to switch to a high-current charging state. The voltage across the USB output ports may be reduced to zero volts and the VBUS voltage removed to simulate disconnection of the HEDs.

A reverse powered wireless distribution point

Described is a distribution point unit, DPU, 108 having a wireless backhaul connection, such as a 4G or 5G cellular connection. The distribution point unit is reverse powered electrically by connected subscriber lines 104 (Reverse Power Feeding, RPF) from Customer Premises Equipment, CPE, 106. The radio configuration (number of antennas, frequencies, etc) used by the wireless backhaul connection is switched according to the power available from the subscriber lines (306, figure 3). Changes to the available power can trigger a switch to a new radio configuration (314). Higher capacities (data rates) can be achieved with higher power radio configurations, which can be switched over to if the available power is sufficient (318). Similarly, when the available power drops (312), a switch can be made to an appropriate lower powered radio configuration. The distribution point unit may further comprises a wired backhaul connection, and the determined power available for the wireless backhaul connection ...

COUPLING AN ELECTRIC SIGNAL TO TRANSMISSION LINES

DYNAMIC BASELINE REGULATION WITH ON STROMMODULATION BASED COMMUNICATION

REMOTE SUPPLY DEVICE FOR A TERMINAL IN TELECOMMUNICATIONS A NETWORK, A CONCENTRATOR AND A REPETITION ARRANGEMENT WITH SUCH A DEVICE

SCHALTUNGSANORDNUNG ZUR STROMVERSORGUNG EINER NETZ-ABSCHLUSSEINHEIT

SYSTEM AND PROCEDURE FOR THE REMOTE SUPPLY OF A TELECOMMUNICATIONS PLANT

PROCEDURE AND DEVICE FOR THE RECOGNITION AND RECOVERY OF DEFECTS IN A INLINE STROMFÄHIGEN ETHERNETSYSTEM

PROCEDURE FOR THE ADMINISTRATION OF THE OF CENTERS NETWORK COMPONENT OF AN ENERGY TRANSFERRED OVER A LINE FOR A DECENTRALIZED NETWORK COMPONENT

Combination of power plug and digital data connector, has mains socket with connector for mains device through which data converter can be supplied with power voltage

Combination connector has a mounting frame for mounting in or on a wall for a mains socket (5) and a data repeater and/or a data converter (7) with a data connection (6) for data output. Mains socket has a connector for mains device (14) through which data converter and/or repeater can be supplied with voltage. Mains socket and data connection are mounted adjacent to each other and can be connected to data converter and/or repeater to form a unit.

COMBINATION OF A POWER SUPPLY PLUG AND A DIGITAL DATA PLUG

GUARD FOR CAMERAS CAPABLE OF THE TRANSMISSION OF DIGITAL VIDEO SIGNALS

PROCEDURE AND SYSTEM FOR CONTINUOUS ADMINISTRATION OF ENERGY-EFFICIENT OF NETWORK MINUTES

SWITCHING CONFIGURATION FOR TRANSFERRING BINARY SIGNALS BETWEEN SEVERAL PARTICIPANTS

KOMMUNIKATIONSSYTEMSENDER RECEIVERS WITH DATENUMGEHUNGSUND ENERGY SAVINGS MECHANISMS

OPTICAL DATENREPEATER WITH POWER MAINS SUPPLY IN COMBINED BUILDING METHOD WITH A CONVENIENCE OUTLET

ARRANGEMENT FOR TRANSFERRING DATA AND SUPPLY VOLTAGE OVER A BUS.

Element management system for managing line-powered network elements

ACTIVE DISTRIBUTION BOARD IN A COMMUNICATION NETWORK

System and method for on-demand battery backup for cable telephony device

Ruggedized analog front-end for a network communicative device in a railway-like environment

Dynamic baselining in current modulation-based communication

Distributed antenna system using power-over-ethernet

A system is provided for adjusting power provided over a channel to a device. The system can include power sourcing equipment and a sub-system. The power sourcing equipment can provide power to a powered device via a channel (302). The sub-system can determine an amount by which to increase the power based on a resistance of the channel (306). The power sourcing equipment or the powered device can adjust the power (or load) in response to a command from the sub-system. The sub-system can include at least one measurement device and a processor. The measurement device can measure an output voltage of the power sourcing equipment, an input voltage of the powered device, and a current on the channel (304). The processor can determine the resistance of the channel based on the output voltage, the input voltage, and the current (306). The processor can output a command specifying an increase or decrease in the level of power supplied by the power sourcing equipment.

Electric appliance comprising a power supply unit, a transformer power supply unit, and a control card for an electric appliance

Frequency domain equalisation with decision feedback

System for adapting a conventional telephone line to a data and voice transmission local network

Door station apparatus with electric lock

Power supply circuit and power supply panel

A power supply circuit and a power supply panel. The power supply circuit includes: a power supply module (10) for supplying power for a distribution point; a switch module (20) respectively connected with the power supply module (10), a terminal device and the distribution point, for connecting the distribution point with the terminal device when the distribution point does not need power supply, and for connecting the power supply module (10) with the distribution point when the distribution point needs power supply; a control module (30) connected with the power supply module (10), for controlling the switch module (20), based on the electric signal outputted from the power supply module (10), to carry out circuit switching; an isolating module (40) respectively connected with the power supply module (10) and the switch module (20), for preventing the external business from being outputted to the power supply module (10) and preventing the voltage provided by the power supply module ...

Battery backed power-over-ethernet system

A power control system arranged for use in a power-over-Ethernet system comprises a battery (38), a battery charging unit (40) connected to, and for charging, the battery (38) and a processor (34) arranged to monitor the charge level of the battery (38) and, in response, to direct current to, or away from, the battery (38). A power-over- Ethernet (PoE) system for delivering power to a load comprises a powered device (14) and an Ethernet power sourcing device (20) configured to supply DC power to the powered device (14). The powered device (14) has a battery (38), a battery charge unit (40), and a processor (34). The processor (34) is arranged to monitor the current requirement of the load (16), and to control the charging of the battery (38) and the supply of current from the battery (38) to the load (16) in response to said monitoring. A method of providing current to a load (16) in a power-over-Ethernet system (10) which includes a power sourcing device (20), a battery (38) and a processor ...

Energy supply method and device for monitoring wireless sensor node of roller

An energy supply method and device for a monitoring wireless sensor node of a roller. A node energy supply device (2) is arranged on a roller web (1). The node energy supply device (2) comprises a generator (2-1), a disc rail (2-3), an input shaft (2-4), a swing link (2-5), a swing wheel (2-8) and an energy collection module (2-10). The generator (2-1) is driven to rotate using the rotation motion of the roller, the mechanical energy is converted into electric energy by the generator (2-1), and power is supplied to a monitoring wireless sensor node by the energy collection module (2-10). After rectification, filtering and voltage stabilization are conducted on the electric energy generated by cutting a magnetic induction line when the generator (2-1) operates, the energy collection module (2-10) uses the electric energy for charging an internal battery of the monitoring wireless sensor node. When the roller operates, the swing wheel (2-8) will keep vertically downward because of the gravity ...

DISTRIBUTED ANTENNA SYSTEM USING POWER-OVER-ETHERNET

Abstract A system is provided for adjusting power provided over a channel to a device. The system can include power sourcing equipment and a sub-system. The power sourcing equipment can provide power to a powered device via a channel. The sub system can determine an amount by which to increase the power based on a resistance of the channel. The power sourcing equipment or the powered device can adjust the power (or load) in response to a command from the sub-system. The sub-system can include at least one measurement device and a processor. The measurement device can measure an output voltage of the power sourcing equipment, an input voltage of the powered device, and a current on the channel. The processor can determine the resistance of the channel based on the output voltage, the input voltage, and the current. The processor can output a command specifying an increase or decrease in the level of power supplied by the power sourcing equipment.

Subscriber integrated access device for use in wireless and wireline access systems

TWO WIRE COMMUNICATION SYSTEM

A two wire communication system capable of transmitting data and transferring power by means of an electrical bi-polar waveform across a two wire conductor from a controller in communication with said two-wire conductor to at least one module in communication with said controller and capable of transmitting data from said module to said controller; and a remote electrical device in communication with said controller. Usable data may be continuously transmitted across said two wire conductor independent of and during power transmission between the controller and the at least one module without loss of data transmission time and without affecting the transfer of power to the at least one module. The data is transmitted across the two wire conductor to the modules by pulse duration signals at the same time power is transmitted to said modules. The system is capable of using up to 100 % of transmission time to transmit data without affecting transfer of power to the at least one module.

POWER SUPPLY VIA THE DATA LINES IN LOCAL AREA NETWORKS

The invention relates to a particularly space-saving and cost-effective possibility for supplying power to terminals via data lines of a local network with the aid of a method and a device for supplying power from a current sink (ED) via two data line pairs of a local network (LAN). The invention is characterized in that decoupling and/or coupling of a supply voltage provided by a voltage source (SQ) takes place between the central point of two voltage dividers that are arranged between the two data lines of a pair.

INTRINSICALLY SAFE COMMUNICATIONS CIRCUIT

An electrical circuit comprising a power supply, a load, a pair of parall el positive cables between the power supply and the load, a pair of parallel negative cables between the load and the power supply, and incendive arc pr evention means, comprising : monitoring means adapted to detect if the curre nt and/or voltage in one of the pair of cables deviates from the other, and a control means adapted to fully or partially isolate the power supply from the pair of cables if the monitoring means detects that their current and/or voltage has deviated from the other, characterised in which: the electrical circuit comprises a common positive section between the power supply and th e pair of positive cables, and a common negative section between the pair of negative cables and the power supply, in which a first modulation means is adapted to generate a modulated communications signal.

ADDRESSABLE NODE UNIT AND ADDRESSING METHOD

An addressable node unit (30) has connections (15a, 15b, 16) for at least two lines (17, 18a, 18b) via which the node unit (30) can be addressed. The connections (15a, 15b, 16) are connected to a circuit (14) which evaluates an addressing signal. The node unit (30) has at least one power source (4, 22) which can be supplied with power via at least one of the lines (17, 18a, 18b). A switch (25) is provided in the path between the evaluating circuit (14) and the corresponding line connection (15a, 15b), said switch (25) has to be opened after an addressing process so that the power supply of the evaluating circuit (14) is ensured by the at least one power source (4, 22) after the addressing.

IMPROVED STRUCTURE CABLING SYSTEM

This invention discloses a local area network including a hub (10), a plurality of nodes (12, 14, 16, 18, 20, 22), communication cabling (11) connecting the plurality of nodes to the hub for providing data communication, and a power supply distributor (30) operative to provide at least some operating power to at least some of the pluarity of nodes via the communication cabling.

DIGITAL COMMUNICATION SYSTEM AND A METHOD OF TRANSFERRING POWER AND DATA BETWEEN CIRCUITS OF THE SYSTEM

A method of transferring power and data between a first circuit and a second circuit, the method comprising: - operating the I/O terminal of the second circuit as an output terminal and the I/O terminal of the first circuit as an input terminal; - transmitting data from the second circuit to the first circuit by modulating an output level between a high level and a low level; - determining whether ouput level of the second circuit is high or low and, when the output is high: - operating the I/O terminal of the first circuit as an output terminal; and - raising the output level the first circuit to high during at least part of a period when the output level of the I/O terminal of the second circuit is high, thereby charging the electric energy storage element.

INTERMEDIARY DEVICE FOR EXTRACTING POWER SUPPLIED OVER A DATA CONNECTION

Technologies exist that allow for power to be supplied over a data connection, e.g., Power over Ethernet (PoE). Power sourcing equipment (PSE) supplies power to a powered device (PD) over the data connection. There may be applications in which it is desired or necessary to insert an intermediary device on a data connection between the PSE and the PD. An intermediary device is disclosed that can be inserted between a PSE and a PD. The intermediary device attempts to power itself using power supplied by the PSE over the data connection, rather than using an auxiliary power supply. In some embodiments, the intermediary device acts like a PD and requests from the PSE enough power for both itself and the actual PD. The intermediary device then also acts as a PSE to deliver unused power over the data connection to the actual PD.

REVERSE POWER FEEDING POWER SOURCING EQUIPMENT AND METHOD

A reverse power feeding PSE in electrical communication with a DPU, the PSE constituted of: a control circuitry; and a detection and classification signal circuitry, arranged to: output a detection signal; output a classification signal; and output an additional signal exhibiting a voltage below an operating range, and wherein the control circuitry is arranged to: responsive to the output first detection signal, detect a valid signature resistance; responsive to the output first classification signal, receive a classification current and determine the class of the DPU; responsive to the output additional signal, detect the absence, or presence, of an off-hook phone; responsive to the detection of the absence of an off-hook phone, and further responsive to the detection of the valid signature resistance, output power exhibiting a voltage within the operating range; and responsive to the detection of the presence of an off-hook phone, not output power.

COMMUNICATIONS DEVICE POWERED FROM HOST APPARATUS

A communications device, such as a transceiver, is used with a fiber optic communication line, wherein the communications device is powered from a host device. A voltage supply circuit, which comprises a full wave bridge rectifier responsive to data and control signals from the host device, produces plus and minus rectified voltage signals. First and second voltage regulators are responsive to the rectified voltage signals to produce plus and minus regulated voltages, for example ~5 volts, which is sufficient to power the communications device. A charge circuit alternately transfers energy from the plus and minus voltage lines to ensure the presence of plus and minus voltage signals when only positive or negative signals are provided by the host device.

POWER MONITOR WITH INDICATORS

A device for monitoring power conditions in the power leads of a communication network or power distribution bus includes a microprocessor (54) which measures the voltage on the power leads and computes a filtered bus voltage, Vbus, and a time-averaged bus voltage, Vave. From these, the microprocessor determines whether overvoltage, undervoltage or ripple conditions exist to actuate associated visual indicator intermittently (LEDs 57, 58, 59), or surge, brownout or transient conditions to actuate the associated indicators (LEDs 57, 58, 59) constantly for their associated slot times in a display cycle. The device may be in the form of a compatible terminator or a Tee for the network or power bus.

POWER SOURCING EQUIPMENT CHIP, AND POWER OVER ETHERNET DEVICE AND METHOD

A power souring equipment (PSE) chip, power over Ethernet (PoE) equipment and method, the method being capable of determining the access situation of a powered device (PD) of a corresponding terminal when powering with four cable pairs. PSE chip comprises a channel controller, a first channel detector and a second channel detector; the channel controller transmits a first detection voltage along a first group of cable pair in Ethernet twisted-pair cables via the first channel detector, and transmits a second detection voltage along a second group of cable pair in Ethernet twisted-pair cables via the second channel detector; and determining a first impedance according to the current detected by the first detection voltage and the first channel detector, and determining a second impedance according to the current detected by the second detection voltage and the second channel detector; and determining the first group of cable pair connected to an effective PD when the first impedance is within ...

POWER OVER ETHERNET METHOD, APPARATUS, DEVICE, AND SYSTEM

The present invention provides a power over Ethernet method, apparatus, device, and system, so as to reduce an effect of a high-power Ethernet powered device on a low-power Ethernet powered device. In the present invention, when a power supply mode of an Ethernet power sourcing equipment is a first power supply mode, a power supply priority of a high-power Ethernet powered device whose power is supplied by the Ethernet power sourcing equipment is set to a lowest priority, where the high-power Ethernet powered device is an Ethernet powered device whose power requirement is greater than a set value; when a new Ethernet powered device is connected to the Ethernet power sourcing equipment, a power supply priority of the new Ethernet powered device is determined according to the power supply mode of the Ethernet power sourcing equipment and a power requirement of the new Ethernet powered device; and it is determined, according to a used power of the Ethernet power sourcing equipment, a power ...

POWER OVER ETHERNET METHOD, APPARATUS, DEVICE, AND SYSTEM

The present invention provides a power over Ethernet method, apparatus, device, and system, so as to reduce an effect of a high-power Ethernet powered device on a low-power Ethernet powered device. In the present invention, when a power supply mode of an Ethernet power sourcing equipment is a first power supply mode, a power supply priority of a high-power Ethernet powered device whose power is supplied by the Ethernet power sourcing equipment is set to a lowest priority, where the high-power Ethernet powered device is an Ethernet powered device whose power requirement is greater than a set value; when a new Ethernet powered device is connected to the Ethernet power sourcing equipment, a power supply priority of the new Ethernet powered device is determined according to the power supply mode of the Ethernet power sourcing equipment and a power requirement of the new Ethernet powered device; and it is determined, according to a used power of the Ethernet power sourcing equipment, a power ...

STATUS MONITOR TRANSPONDER FOR AN OPTICAL NODE OF A NETWORK

A transponder and system for monitoring the status of equipment, such as an optical node, on a network are described. The transponder has an external fiber optic input connection element, an external fiber optic output connection element, an internal receiver connected to the input connection element for converting incoming optical signals to electrical RF signals for use internally within the transponder, and an internal transmitter connected to the output connection element for converting outgoing electrical RF signals to optical signals to be transmitted from the transponder. The transponder also includes status monitoring circuitry interfacing with equipment being monitored and a cable modem communicating with the status monitoring circuitry for receiving information therefrom and for generating an outgoing signal. A method of monitoring the status of an optical node on a network is also disclosed.

POWER SAVINGS IN MULTIPLE TECHNOLOGY PHYSICAL LAYER DEVICES SUPPORTING AUTONEGOTIATION

A Physical Layer Device is disclosed having power savings features operable during autonegotiation for multiple technologies. Excessive power consumption is alleviated by decreasing the power required by the receiver(s) during parallel detection. The Physical Layer Device includes at least one port, with each port including a parallel detection receiver for receiving data and messages from a connected device, the data and messages including autonegotiation fast link pulses indicating a technology capability of the connected device, a cycler for enabling the parallel detection receiver for a fraction of an autonegotiation period and a controller for controlling the cycler. The enabling of the receiver for each port, whether a multiple or single port device, is staggered to prevent more than one receiver from being enabled at one time. Accordingly, the receivers are enabled for a brief period of time to check for the presence of the required signals, and then disabled for a much greater period ...

METHOD AND APPARATUS FOR REDUCING SIGNAL PROCESSING REQUIREMENTS FOR TRANSMITTING PACKET-BASED DATA WITH A MODEM

A modem and method for operating same. A receiver circuit of the modem is coupled to receive a continuous analog signal from a communication channel. This analog signal includes both packet and idle information. The receiver circuit monitors the analog signal to detect the presence of idle information. Upon detecting idle information, the receiver circuit enters a standby mode in which the processing requirements of the receiver circuit are reduced. A burst mode protocol is also provided, in which packets of digital information are modulated by a transmitter circuit of the modem, thereby converting the packets of digital information into analog signal bursts of discrete duration. These analog signal bursts are transmitted from the transmitter circuit to a telephone line. However, the transmitter circuit does not generate any signals between the analog signal bursts. A receiver circuit monitors the telephone line to detect the analog signal bursts. Upon detecting the presence of the analog ...

POWER FEEDING SYSTEM FOR TELEPHONE TERMINAL IN LAN

Terminals are connected via cables in a star-shaped fashion with respect to a HUB in a LAN. Each of the cables includes therein signal lines and power feed lines. The HUB includes therein a power feed section. The power feed section and the power feed lines of each cable are connected to measure a value of current which flows in the power feed lines. If it is judged based on the measured current value that the terminal connected to the corresponding cable is a telephone terminal, the power feeding to the corresponding power feed lines is continued. On the other hand, if the terminal is judged to be a terminal other than the telephone terminal, the power feeding is stopped.

Installazione telegrafica.

Notstromversorgungseinrichtung für netzgespeiste Fernmeldeanlagen.

Notstromversorgungsanlage für Fernmeldeanlagen.

Einrichtung zum Verändern der Schreibgeschwindigkeit einer mit einer Lochereinrichtung versehenen Fernschreibmaschine einer Fernschreibteilnehmerstation

Anordnung für die Gleichstromversorgung von Fernmeldegeräten, insbesondere Telegraphengeräten.

Fernschreiber-Teilnehmerstation.

Fernschreiber-Teilnehmerstation.

Data transmission system with stations connected to a common transmission line

METHOD FOR ELECTRONIC DATA AND INSTALLATION FOR IMPLEMENTING THIS METHOD.

POWER AND COMMUNICATION FOR REMOTE ELECTRONIC DEVICES

СИСТЕМА И СПОСОБ ДЛЯ ПОДАЧИ ПИТАНИЯ К ВИДЕОКАМЕРАМ НАБЛЮДЕНИЯ И ЗАЩИТНЫМ ЧЕХЛАМ ДЛЯ ТАКИХ ВИДЕОКАМЕР

Настоящее изобретение относится к системе электропитания для видеокамер (2) и для защитных чехлов (1) для видеокамер. Система содержит первое устройство (13), называемое питаемым устройством, поскольку оно получает энергию от удаленного устройства, способного разделить напряжение (131) питания и сигнал (130) данных из входной линии (18) электропитания. Множество линий (14a-14e) электропитания соединены с первым выходом питаемого устройства (13), и они питают множество электрических компонентов (7, 8, 9, 10) через напряжение (131) питания, извлеченное питаемым устройством (13). Система дополнительно содержит оборудование (19) электропитания, соединенное с питаемым устройством (13), чтобы принимать в качестве входа напряжение питания и сигнал данных, разделенные питаемым устройством. Оборудование (19) электропитания подает на выходную линию (20) выходное напряжение и сигнал данных, и оно информирует схему (16) управления об электроэнергии, запрошенной на выходной линии (20), то есть видеокамерой ...

SYSTEM AND METHOD FOR POWER SUPPLY TO TO SURVEILLANCE VIDEO CAMERAS AND PROTECTIVE COVERS FOR SUCH VIDEO CAMERAS

Mode Dependent Driving of the Center Tap in Ethernet Communications

An output stage comprising a current mode line driver, a voltage mode line driver, and a center-tapped transformer for coupling data provided by the line drivers to a transmission line is provided herein. The output stage is configured to operate in a backwards compatible Ethernet communication device. For example, the Ethernet communication device is configured to support 10G Ethernet and legacy Ethernet modes of 10BASE-T, 100BASE-T, and 1000BASE-T. The current mode line driver can be utilized while operating in the 10G Ethernet mode to provide high linearity. The voltage mode line driver can be utilized while operating in legacy mode to conserve power. In order to accommodate the use of two different line drivers, a switch and/or a voltage regulator is used to couple/decouple a dc voltage to a center-tap of the transformer based on which of the two different line drivers is currently active.

PoE POWER SOURCING EQUIPMENT AND POWER SUPPLYING METHOD

A Power over Ethernet (PoE) power sourcing equipment that optimizes power supplied to a PoE powered device connected to one of a plurality of power supplying ports of the PoE equipment. The Power over Ethernet (PoE) power sourcing equipment includes a plurality of power supplying ports, a consumed power monitoring unit that monitors the consumed power of the PoE powered device connected to one of the plurality of power supplying ports, and a supply power determining unit that determines the set supply power to the PoE powered device connected to the one of the power supplying ports.

Facilitating communication and power transfer between electrically-isolated powered device subsystems

A system employing power over Ethernet (PoE) technology may include at least one powered device and power sourcing equipment (PSE). The powered device may include a first powered device (PD) subsystem and a second powered device (PD) subsystem that is electrically isolated from the first PD subsystem. The powered device may also include an interface connecting the first PD subsystem and the second PD subsystem. The PSE may be operable to provide power to one or more of the PD subsystems through a link connecting the PSE to the powered device. Also, the first PD subsystem may be operable to receive a communication from and transfer power to the second PD subsystem through the interface while maintaining the electrical isolation.

Power conversion system and communication address setting method

There is provided a power conversion system, and a photovoltaic inverter includes a communication unit that broadcast-transmits a setting request signal of a predetermined communication address. The photovoltaic inverter includes a display unit that displays the predetermined communication address indicated by the setting request signal, and an address setting unit that generates a setting completion signal indicating that the predetermined communication address has been set as the communication address of the photovoltaic inverter if an input accepting unit accepts an input such that the predetermined communication address is set. An address management unit of the photovoltaic inverter generates a setting request signal indicating a communication address other than the predetermined communication address if the setting completion signal for the predetermined communication address is received.

Method and Apparatus For Reducing Power Consumption in a Telecommunication Network

A method that reduces the power consumption on network nodes by taking into account the services that need to be supported by the network and the power saving capabilities of the nodes.

Determining the Order of Devices in a Downhole String

A string of subs includes a controller sub. The controller sub includes a first end, a second end, a controller, a first controller bus coupled to the controller, the first controller bus exiting at the first end of the controller sub, and a second controller bus coupled to the controller, the second controller bus being separate from the first controller bus, the second controller bus exiting at the second end of the controller sub. The string of subs also includes a first measuring sub and a second measuring sub. A process, running on a computer, discovers that the first measuring sub is connected to the first controller bus, discovers that the second measuring sub is connected to the first controller bus, determines that the first measuring sub is physically closer to the controller sub than the second measuring sub, and use the fact that the first measuring sub is physically closer to the controller sub than the second measuring sub in controlling the operation of the string of subs.

MAC Filtering on Ethernet PHY for Wake-On-LAN

To improve Wake-on-LAN (WOL) functionality of a device, a Media Access Control (MAC) address filtering function may be implemented in the device's Ethernet physical layer (ePHY) block. When the ePHY detects a WOL frame, the MAC filtering function in the ePHY may perform address comparison between the MAC address associated with the device, and the MAC address contained in the WOL frame. Performing the MAC address comparison within the ePHY allows the main system components, such as the main SOC and other components to remain in standby mode (or sleep mode) until a MAC address match has been determined. Therefore, the main system components do not need to be rebooted every time the device receives a WOL frame, only when there is a match between the MAC address of the system and the MAC address contained in the detected WOL packet.

Serdes power throttling as a function of detected error rate

A system involves a first SerDes link from a first integrated circuit (IC) to a second IC and a second link from the second IC to the first IC. Power consumption settings in circuitry of the first link are adjusted to control power consumption such that the bit error rate of the first link is maintained in a range, where the lower bound of the range is substantially greater than zero. Power consumption settings in circuitry for the second link are adjusted to control power consumption such that the bit error rate of the second link is maintained in range, where the lower bound of the range is substantially greater than zero. In one example, circuitry in the second IC detects errors in the first link and reports back via the second link. The first IC uses the reported information to determine a bit error rate for the first link.

Hdmi device and associated power management method

An HDMI device and an associated power management method are provided for use in the case with an HDMI Ethernet Channel implemented. The HDMI device can acquire an external power source by connecting to another HDMI device through an HDMI interface. Thus, when the internal power source of the HDMI device is disabled, the external power source can be used as a backup power source for the internal Ethernet circuit of the HDMI device.

Remote power group distribution control system and method therefor

A remote power group distribution control system has a host computer, at least one network server and multiple power distribution units (PDUs) connected to the host computer through the at least one network server. The host computer has a power distribution control module. Each PDU is connected with multiple power consuming equipment having identical or similar characteristics to supply an operating power and an uninterruptible power. When the power distribution control module is executed, the host computer searches the PDUs connected thereto through the at least one network server, displays all power-consuming equipment connected to each PDU, generates a group management window to assign each power-consuming equipment to a group, and remotely controls the power consuming equipment on a group basis. Accordingly, the present invention addresses a solution conveniently powering on or off remote power-consuming equipment pertaining to a group.

Unified Bus Architecture for PoE Communication and Control

Embodiments of a unified communication and control bus architecture for Ethernet and/or PoE systems are provided. Embodiments enable a unified communication and control bus architecture that significantly simplifies communication and control in Ethernet and/or PoE systems. Embodiments enable significant savings both in terms of cost and complexity as the number of communication and control buses is reduced down to one. Embodiments can be used in various Ethernet and/or PoE implementations, including, for example, single PCB-single PoE, single PCB-multiple PoE, chassis-based switch, and stackable-based switch configurations. Further, embodiments can be implemented using standard Ethernet as well as proprietary implementations.

Methods, systems, and computer program products for disabling an operative coupling to a network

Methods and systems are described for disabling an operative coupling to a network. In an aspect, first data received for forwarding is forwarded between a first node in a first network and a second node in a second network by a network relay via a first operative coupling to the first network of a first network interface hardware component in the network relay and via a second operative coupling to the second network of a second network interface hardware component in the network relay. A determination is made that a specified decoupling condition is met. The second operative coupling is disabled subsequent to the forwarding and in response to the determination while the first operative coupling remains enabled for receiving second data for forwarding.

Securing wakeup network events

In an embodiment, a method is provided. The method of this embodiment provides receiving a packet having a wake-up pattern, and waking up if the wake-up pattern corresponds to one of a number of dynamically modifiable passwords on a pattern wake list, each of the dynamically modifiable passwords being based, at least in part, on a seed value

Systems and methods for powering a network access device using customer premises equipment

A system in accordance with an exemplary embodiment of the present disclosure comprises an NAD positioned at an intermediate point between a network facility and one or more customer premises (CP). The NAD is coupled to CP transceivers located at the one or more customer premises via a plurality of subscriber lines. The CP transceivers are configured to provide power to and also communicate with the NAD via the subscriber lines. The NAD is further configured to form a power signal based on the power received from multiple subscriber lines and to provide the power signal to components of the NAD. The NAD is further configured to determine from which of the subscriber lines it is receiving at least a certain amount of power and to selectively enable and disable the communication service provided over each respective subscriber line based on such determination. The NAD also powers down at least some components of the NAD that were used to previously provide the services that have since been disabled.

Intrinsically safe connection unit with a network interface, intrinsically safe appliance and network interface for it

An intrinsically safe connection unit with a network interface for intrinsically safe appliances in explosion-risk areas, having a housing, a voltage supply connection, plug connection for connecting an intrinsically safe appliance via a transmission cable, and a decoupling circuit. For allowing even a multiplicity of network subscribers to be connected in the explosion-risk area with less wiring complexity, a plurality of plug connections of the same type are provided as network interface, each being preceded by a separate decoupling circuit, and the voltage supply connection builds a central feed connection with separate supply cores for each plug connection each having at least two plug contacts for data communication and at least two plug contacts for supplying power to the connectable appliances via the transmission cable. The invention relates also to a Controller and a network interface for use therewith.

Residential Gateway

A particular residential gateway includes a network interface, a connector interface to receive a signal via one or more communication lines, and a power coupling device to receive power from at least one of the one or more communication lines. The residential gateway includes a first module to receive first data via the signal and to route the first data to a first device coupled to the network interface. The first module is powered using the power received from the at least one communication line by the power coupling device.

Actuating deviceof wireless access point

An actuating device of a wireless access point (WAP), the WAP includes a first module, a second module with a power requirement, and an actuating device. The WAP has a first voltage range and a second voltage range. The actuating device includes a switching unit and a voltage regulating unit. The switching unit receives an input voltage and has two output terminals. The switching unit outputs a first voltage via the first output terminal when the input voltage is within the first voltage range, and outputs a second voltage via the second output terminal when the input voltage is within the second voltage range. The voltage regulating unit is coupled to the output terminals to convert the second voltage to the first voltage. The second module is coupled to the second output terminal of the switching unit.

Systems and methods for reducing power consumption during communication between link partners

Generally, this disclosure describes an energy-efficient Ethernet communications approach. In at least one embodiment described herein, an Ethernet controller may be configured to operate in an active power state to transmit or receive data packets at a maximum available link speed. The maximum available link speed may be determined by a negotiation between the Ethernet controller and a link partner coupled to the Ethernet controller. Once the data packets are transmitted or received, the Ethernet controller may be configured to operate in an idle power state to reduce energy consumption.

Network device and method for the network device to set operation of port

A network device and a method for the network device to set operation of a port are provided. The network device is connected to a set of power sourcing equipment (PSE) through a port, and the PSE powers the network device through the port. The network device includes an analysis module and a port control module. The analysis module judges whether the port of the network device is connected to the PSE. The port control module provides a port function switch instruction according to a judgment result of the analysis module, so as to enable or disable the port.

Control server and control method

In a control server, a storing section accumulates request data received from a terminal and used for remotely operating, via a control apparatus, a home electric appliance provided in a home. A generating section generates schedule data on the basis of at least one of the request data and the inquiry. The schedule data is data concerning a frequency of an inquiry about the request data by the control apparatus and data transmitted to the control apparatus. A transmitting section transmits the request data stored in the storing section to the control apparatus in response to the inquiry transmitted from the control apparatus at a frequency indicated by the schedule data.

Diagnostic apparatus and method for home appliance

The present disclosure relates to diagnostic apparatus and method for home appliance which make it easy to diagnose a breakdown of a home appliance, using a signal including product information and outputted from the home appliance, in which a signal is converted in accordance with signal distortion generated in the process of transmitting the output signal or in a terminal, so that the product information of the home appliance is easily extracted, accuracy of a diagnosis result is improved, an after-sales service for a breakdown of the home appliance is easily provided, and reliability of the product is improved by the improvement of accuracy of the diagnosis result.

Sleep Control for Energy Efficiency in Ethernet Passive Optical Networks

A method sets certain downstream traffic scheduling rules at an optical line terminal OLT and certain sleep control rules at optical network units ONUs. Both downstream traffic scheduling rules and sleep control rules are common information owned by both the OLT and ONUs. The method sets the traffic scheduling rules that each ONU is allocated with some time slots every cycle if the ONU has downstream traffic. Rather than using a control message to notify ONUs with their queue status, the method lets ONUs infer whether its downstream queue is empty or not based on downstream traffic scheduling and lets the OLT infer the status of an ONU based on sleep control rules. 1. A method for controlling downstream scheduling in an Ethernet passive optical network EPON , said method comprising the steps of:i) setting downstream traffic scheduling rules at an optical line terminal OLT;ii) letting said rules be known by optical network units ONUs, an ONU owning information of the downstream traffic scheduling rules enabling said ONU capable of inferring its current downstream queue status based on historical arrival downstream traffic;iii) according to the inferred queue status, said ONUs making their own sleep decisions based on selective sleep control rules, said sleep control rules being implemented at said ONU side being known by said OLT; andiv) based on said sleep control rules, said OLT inferring a status of said ONUs, and buffering incoming downstream traffic of sleep ONUs responsively.2. The method of claim 1 , wherein said steps i)-iv) cooperatively enable efficiently putting said ONUs into sleep without extending an EPON MAC protocol and not requiring handshaking between said OLT and ONUs thereby enabling improved energy efficiency of said EPON.3. The method of claim 1 , wherein said steps i)-iv) enable dynamic bandwidth allocation among ONUs to achieve increased bandwidth utilization.4. The method of claim 1 , wherein said scheduling rules comprise:defining a time ...

Device and method for energy management in a household

An energy management system comprises one or more appliances, a remote device, and a communication device. In one embodiment, the communication device forms a physical connection with the remote device and thereafter a physical connection with an associated appliances. The first physical connection binds the communication to the remote device, thereby forming a secure connection over which inputs and outputs can be exchanged between the remote and the associated appliance when the communication device is connected to the appliance.

Power negotiation protocol

In one embodiment, a method includes a first device providing a first power to a second device using a first set of conductors out of a plurality of conductors. The method includes the first device providing, in response to receiving a notification, a second power to the second device using the first and a second set of conductors out of a plurality of conductors. The notification indicates that the second device can be supplied with a second power using the first set of conductors and a second set of conductors out of the plurality of conductors, and can also specify the configuration for enabling the second power.

Cascaded power-over-ethernet system

A Power-over-Ethernet (PoE) device ( 200 ) for use in a PoE system is described. The PoE device ( 200 ) comprising a first PoE port ( 210 ) for connecting the device to an upstream PoE device or a central control unit, a second PoE port ( 220 ) for connecting the device to a downstream device or PoE device and a control unit ( 240 ) for controlling data ( 335 ) and/or power communication ( 400 ) between the first ( 210 ) and second ( 220 ) PoE port. The control unit ( 240 ) further comprises a first power input terminal ( 305 ) connected to the first PoE port ( 210 ) to receive electrical power ( 320 ) for powering the control unit ( 240 ).

System and method for querying for energy data in a network environment

A method is provided in one example embodiment and includes communicating a query over a network to a plurality of entities that reside in a domain, the query including a request for data relating to energy use. The query can be generated by one or more computing devices belonging to the domain. A selected one of the computing devices can control power consumption for the entities in the domain. In other embodiments, a discovery protocol (DP) and a link layer discovery protocol (LLDP) is used for transporting events regarding the entities that connect or disconnect from the network. The entities send discovery events over a DP/LLDP protocol, identifying them as part of the domain. In yet other embodiments, the method includes querying a selected one of the entities to determine, if the selected entity moved to a certain energy level, an energy consumption value at the certain energy level.

COMMUNICATION APPARATUS THAT CAN BE OPERATED IN POWER-SAVING MODE, METHOD OF CONTROLLING THE APPARATUS, AND STORAGE MEDIUM

A communication apparatus which makes it possible to achieve the securing of network communication speed and the reduction of power consumption of a communication apparatus at the same time. The communication apparatus performs communication at a first link speed when operating in a power-saving mode and at a second link speed higher than the first link speed when operating in a normal power mode. In a first link unit, a standby time period for switching the first link speed to the second link speed is required after the communication apparatus enters the normal power mode. In a second link unit, the standby time period is not required. When a predetermined condition is satisfied, the communication apparatus switches between a communication by the first link unit and a communication by the second link unit such that one of the communications which consumes less electric power is selected, based on switching information. 1. A communication apparatus comprising:a control unit configured to control the communication apparatus;a communication unit configured to communicate with an external device via a network;a power supply unit configured to, in a normal power state, supply power to said control unit and said communication unit, and in a power saving state, supply power to said communication unit, but not supply power to said control unit; anda determination unit configured to determine in which of a first communication mode in which even in the power saving state, the communication apparatus communicates with the external device at a same communication speed as in the normal power state, and a second communication mode in which in the power saving state, the communication apparatus communicates with the external device at a lower communication speed than in the normal power state, the communication apparatus is to be caused to operate,wherein said determination unit determines in which of the first communication mode and the second communication mode the ...

System and Method for Measuring Current in Hybrid Power Over Ethernet Architecture

Systems and methods of measuring current in a power over Ethernet (PoE) system are provided. The PoE system includes an integrated circuit component having a controller, an internal transistor, a replica transistor, and an external transistor. Current in the system can be indirectly measured by enabling and disabling the transistors in known ways and then measuring the current through the replica transistor. The actual current in the system can be calculated based on the measured currents, thereby allowing for a PoE system that is capable of measuring current without a resistor in series with the external transistor.

Expandable ethernet power supply device

An expandable Ethernet power supply device includes a network line, a power sourcing equipment (PSE), a DC power inputting terminal and a power outputting terminal. A PoE outputting port is inserted into network equipment. An Ethernet connector is connected to a network data source. A DC power is inputted to the DC power inputting terminal and managed by the PSE, and then providing demanded working voltage of the network equipment and transmitting network data. The power outputting terminal is provided for connecting to the DC power inputting terminal of another Ethernet power supply device and demanded working voltage of more network equipment.

Network apparatus with common power interface

Disclosed herein is a network apparatus with a common power interface. The network apparatus mechanically connects to a power adapter via an electrical connector, and transfers the power to other electronic device via an electrical port in addition to taking power for the apparatus. In accordance with one of the embodiments of the invention, the apparatus substantially includes a control unit for processing the inner signals and data of the apparatus, and a communication module for processing the wired or wireless communication. A common power interfacing module is particularly introduced to processing the power allocation from the power adapter. A power management unit is also incorporated to managing the power inside the network apparatus, for example taking power for the operation of the apparatus. According to one further embodiment, the network apparatus is a routing device capable of connecting with external storages.

COUPLING DEVICE TO COUPLE A SUPPLY POWER SOURCE TO A COMMINCATION CABLE

The coupling device comprises a controllable switch unit coupled to an output side of the communication cable, and having a first, a second and a third state. In the first state, a voltage of the communication cable is detected, and the setting of the controllable switch unit is changed from the first state to the second state, if the detected voltage is below a threshold level. In the second state, the communication cable is connected to a controller to check the reception of an identification signal indicating to the controller that a coupling device to couple a load to the cable is connected to the cable. If the identification signal is identified by the controller, the controllable switch unit connects the supply power source to the communication cable. 1. A coupling device to couple a supply power source to a communication cable , comprising:an input side to be coupled to the supply power source;an output side to be coupled to a first end of the communication cable;a controllable switch unit coupled to the output side, and having a first, a second and a third state; anda controller to control a switch setting of the controllable switch unit, wherein in the first state of the controllable switch unit, the first end of the cable is operated in an idle state, when the first end is coupled to the output side, and a voltage of the cable is detected, and the setting of the controllable switch unit is changed from the first state to the second state, if the detected voltage is below a threshold level,in the second state of the controllable switch unit, the output side is coupled to the controller, and, in the condition where the first end of the cable is connected to the output side, the controller is configured to check the reception of an identification signal indicating to the controller that a coupling device to couple a load to the cable is connected to a second end of the cable, and the setting of the controllable switch unit is changed from the second state to ...

Power device interface arranged to detect amount of power available

A powered device interface arranged as an interface between power received over a structured communication cabling and a powered device, the powered device interface constituted of: a class event counter; a logic circuit in communication with the class event counter; and a plurality of flag outputs each responsive to the logic circuit, each of the flag outputs associated with a predetermined powering level of a power sourcing equipment connected over the structured communication cabling, the logic circuit arranged to: output an active signal at the flag output associated with a detected powering level of the connected power sourcing equipment; and output an active signal at all other flag outputs associated with powering levels less than the detected powering level of the connected power sourcing equipment.

POWER MANAGEMENT FOR INPUT/OUTPUT DEVICES

A method for managing power consumption by a network device is disclosed. The network device includes first and second ports, each of the first and second ports identified by a unique identifier and adapted to handle separate network traffic. The method includes verifying that the first and the second ports are connected to a common network end node; shutting off a link between the first port and the network end node; obtaining the unique identifier of the first port; creating, on the second port, a virtual port in response to the unique identifier of the first port; discovering the virtual port on the network device; and redirecting traffic formerly routed through the link through the virtual port. 1. A method comprising:verifying that first and second ports of a network device are connected to a common network end node;shutting off a link between the first port and the network end node;creating, on the second port, a virtual port based on a port identifier of the first port; anddirecting traffic through the virtual port.2. The method of claim 1 , further comprises the steps of:pausing traffic being routed through the first port; andresuming the paused traffic to and from the network device through the virtual port.3. The method of claim 1 , wherein the first and second ports are physical ports.4. The method of claim 1 , wherein the first port is a virtual port on a physical device separate from the second port.5. The method of claim 1 , wherein the network device is an HBA.6. The method of claim 1 , wherein the network device is a server and the first and second physical ports are two HBAs.7. The method of claim 1 , wherein the network traffic comprises communication over a Fibre Channel network or a Fibre Channel over Ethernet network.8. The method of claim 1 , wherein the port identifier associated with the first port and a port identifier associated with the second physical port are the WWPNs of the first and the second ports claim 1 , respectively.9. The ...

OPTICAL LINE TERMINAL AND OPTICAL NETWORK UNIT

An optical line terminal which includes an observing unit that observes information of any one or all of an arrival interval of frames, an instantaneous bandwidth under use of a flow, a queue length of a queue temporarily storing the frames, and a traffic type, and a stop determining unit that dynamically determines a sleep time to be a period in which a sleep state where partial functions of the ONU are stopped is maintained, on the basis of the information obtained by the observing unit. The ONU is entered into a sleep state, immediately after communication ends, after a predetermined waiting time passes from when the communication ends, or after a waiting time determined on the basis of the information passes from when the communication ends. 1. An optical line terminal in an optical network in which the optical line terminal (OLT) and an optical network unit (ONU) communicate with each other through an optical fiber transmission path , the optical line terminal including:an observing unit that observes at least one of protocol information and priority information of frames transmitted to the ONU and frames received from the ONU;a table where the priority information and/or the protocol information is associated with a sleep time to be a period in which a sleep state where non-used functions of the ONU are stopped is maintained; anda table associating unit that dynamically determines the sleep time of the ONU by referring to the table, on the basis of the priority information and/or the protocol information obtained by the observing unit,wherein a control signal to notify the ONU of a sleep state entering request and the sleep time is transmitted to the ONU, immediately after communication with the ONU ends, after a predetermined time passes from when the communication with the ONU ends, or after a time determined on the basis of the priority information and/or the protocol information passes from when the communication with the ONU ends.2. A method of ...

Method and apparatus for implementing low power consumption for data switching device, and data switching device thereof

An apparatus for implementing low power consumption for data switching device includes a dormancy management module that controls an upper layer logic component in a device to enter a low power consumption state when a current state parameter of the device satisfies a preset dormancy configurationcondition; detects whether an energy consumption state of a transmission medium is active; and wakes up the upper layer logic component in the device to enter a normal working state if the energy consumption state of the transmission medium is active. When a preset condition is satisfied, upper layer logic components such as a CPU, a network processor and an optical module in the device, properly stop full-time operation to save energy.

CONTROL CIRCUIT FOR TERMINAL ELECTRONIC DEVICE

A control circuit for a terminal electronic device includes a network card, a wakeup circuit, a south bridge, a restart circuit, and a controller. The network card receives a remote control command from a remote apparatus, and generates a wakeup signal if the terminal electronic device is turned off. The wakeup circuit activates the terminal electronic device according to the wakeup signal. The south bridge provides a low voltage power signal if the terminal electronic device is turned off. The controller receives the wakeup signal and the low voltage power signal, and outputs a first control signal to the restart circuit to disable the restart circuit. 1. A control circuit for a terminal electronic device in communication with a remote apparatus , the control circuit comprising:a network card receiving a remote control command from the remote apparatus, and generating a wakeup signal according to the remote control command if the terminal electronic device is turned off;a south bridge providing a low voltage power signal if the terminal electronic device is turned off;a wakeup circuit electronically connected to the network card, and configured to activate the terminal electronic device;a restart circuit configured to restart the terminal electronic device; anda controller electronically connected to the network card, the south bridge, and the restart circuit;wherein the wakeup circuit receives the wakeup signal, and activates the terminal electronic device, the controller receives the wakeup signal and the low voltage power signal, and outputs a first control signal to the restart circuit according to the wakeup signal and the low voltage power signal, to disable the restart circuit.2. The control circuit as claimed in claim 1 , wherein the network card generates a restart signal if the terminal electronic device is in a boot-strap state claim 1 , the south bridge provides a high voltage power signal if the terminal electronic device is in the boot-strap state ...

Method and System for Energy-Efficiency-Based Packet Classification

Aspects of a method and system for energy-efficiency-based packet classification are provided. In this regard, a network link for communicating a packet may be selected based, at least in part, on an amount of energy required to communicate the packet over the network link, and based, at least in part, on an energy efficiency class to which the packet is assigned. The energy efficiency class may be determined based on one or more fields of the packet, wherein the fields may comprise one or more of an Ethertype field, a type of service header of an IP datagram, and a field pre-pended or appended to a payload of the packet. In this regard, during or subsequent to generation of the packet, the packet may be marked such that a network path traversed by the generated packet may be determined based on the energy required to communicate the packet over the network path. 1. A method performed by a network device , comprising:selecting a network link for communicating a packet based on an indicator included within one or more fields of the received packet, the indicator being used by the network device to identify an energy efficiency class to which the packet is assigned; andtransmitting the packet via the selected network link.2. The method of claim 1 , comprising determining when to transmit the packet based on an amount of energy consumed in communicating the packet over the network link.3. The method of claim 1 , comprising deferring transmission of the packet until the selected network link transitions to a lower energy mode of operation.4. The method of claim 1 , comprising deferring transmission of the packet until the selected network link is available for communication of the packet.5. The method of claim 1 , comprising determining the energy efficiency class based on an Ethertype field.6. The method of claim 1 , comprising determining the energy efficiency class based on a type of service header of an IP datagram7. The method of claim 1 , comprising determining ...

Methods for Controlling a Power State of a Network Entity

One embodiment of the present invention relates to a network system having a first device, a second device, and a third device. The first device is coupled to a far end of a first network. The second device coupled to a far end of a second network. The third device is coupled to a near end of the second network. The third device provides a state transition request via the second network to the second device and the second device causes a transition of state in the first device. 1. A method of controlling power states in a network system , the system being configured for a dedicated network and an alternate network , the method comprising:sending a state transition request from a near end network device across the alternate network;receiving the state transition request at a far end network device of the alternate network;in response to the state transition request, transitioning the far end network device to a first state; andestablishing a communication session between the far end network device and the near end network device over the dedicated network.2. The method of claim 1 , further comprisingtransitioning the near end network device to the first state in response to the state transition.3. The method of claim 2 , wherein establishing the communication session occurs on both the near end network device and the far end network device transitioning to the first state.4. The method of claim 1 , wherein the first state is a full ON state.5. The method of claim 1 , further comprising sending a second state transition request from the far end network device across a second alternate network claim 1 , wherein the second alternate network is varied from the alternate network and the dedicated network.6. The method of claim 5 , further comprising receiving the second state transition request by the near end network device and transitioning the near end network device from the first state to a second state.7. A network system comprising:a far end network device located ...

POWER SAVING MODE FOR MULTI-CARRIER TRANSMISSION

Methods and communication devices are described where in a first transmission mode a set of carriers having different carrier frequencies is used for payload data transmission, and in a second transmission mode at least some of the carriers of the set of carriers are refrained from being used, and the transmission power is reduced. 1. A method for multi-carrier data transmission , wherein carrier frequencies of each carrier of a set of carriers differ from one carrier to another , comprising:using, in a first transmission mode, all carriers of the set of carriers for payload data transmission, andin a second transmission mode, refraining from transmitting payload data on at least one of the carriers of the set of carriers and reducing transmission power of the at least one of the carriers.2. The method of claim 1 , further comprising:switching between the first transmission mode and the second transmission mode based on an amount and/or type of data to be transmitted.3. The method of claim 2 , wherein the method further comprises:providing a retransmission layer, providing a TPS-TC layer performing a rate decoupling above the retransmission layer, the retransmission layer generating data transfer units,identifying data transfer units as idle if they do not contain data from layers above the TPS-TC layer, andswitching from the first transmission mode to the second transmission mode based on identified idle data transfer units.4. The method of claim 3 , wherein the multi-carrier transmission is discrete multitone modulation claim 3 , the method further comprising:aligning data transfer units with discrete multitone symbols.5. The method of claim 3 ,wherein the method is performed according to ITU-T G.998.4.6. The method of claim 1 , wherein reducing transmission power for at least some of the carriers comprises switching of the at least some of the carriers.7. The method of claim 1 , wherein reducing transmission power for at least some of the carriers comprises ...

Power Dissipation Management for Wired Transceivers

A system, method and apparatus for reducing a power consumed by a physical layer device (PHY). A length of a cable connecting the PHY to a link partner is determined. Based on the length, power provided to one or more components of the PHY, or any portion thereof, is reduced. The power provided is reduced while maintaining a level of reliability specified by a protocol governing operation of the PHY. The length can be determined using time-domain reflectometry (TDR) techniques. Any portion of an echo cancellation filter, a crosstalk filter, an equalizer, a precoder, an analog-to-digital converter (ADC), a digital-to-analog converter (DAC), a forward error correction (FEC) decoder and/or an FEC coder can be powered-down or power-optimized to reduce the overall power consumed by the PHY. The protocol governing operation of the PHY can be IEEE 802.3. 1. An apparatus comprising:a physical layer device (PHY), configured to:determine a length of a cable communicatively coupling the PHY to a link partner; andswitch one or more components of the PHY to a power saving mode based on the length of the cable by modifying a parameter of at least one of the one or more components, thereby reducing an amount of power consumed by the PHY.2. The apparatus of claim 2 , wherein the PHY is further configured to determine the length of the cable using time-domain reflectometry (TDR) techniques.3. The apparatus of claim 1 , wherein the one or more components include at least one of:an echo cancellation filter;a crosstalk filter;an equalizer;a precoder;a forward error correction (FEC) decoder; anda FEC coder.4. The apparatus of claim 1 , wherein the PHY is further configured to implement at least one protocol governed by IEEE 802.3.5. The apparatus of claim 1 , wherein the PHY is further configured to switch the one of the one or more components to the power saving mode when the length of the cable is less than a threshold length.6. The apparatus of claim 5 , wherein the threshold length ...

Dynamical Bandwidth Adjustment Of A Link In A Data Network

An apparatus includes a first node configured to receive the data packets from a plurality of source nodes of the data network and to selectively route some of the received data packets to a link via a port of the first node. The apparatus also includes a link-input buffer that is located in the first node and is configured to store the some of the received data packets for transmission to the link via the port. The first node is configured to power off hardware for transmitting received data packets to the link in response to a fill level of the link-input buffer being below a threshold. 1. An apparatus comprising:first node configured to receive the data packets from a plurality of source nodes of the data network and to selectively route some of the received data packets to a link via a port of the first node; anda link-input buffer being located in the first node and being configured to store the some of the received data packets for transmission to the link via the port; andwherein the first node is configured to power off hardware for transmitting received data packets to the link in response to a fill level of the link-input buffer being below a threshold.2. The apparatus of claim 1 , wherein the first node is configured to drop one or more data packets from the link-input buffer in response to a fill level of the link-input buffer being above a second threshold claim 1 , the second threshold being less than an available bandwidth of the link.3. The apparatus of claim 2 , wherein the first node is configured to drop one or more data packets from the link-input buffer with a probability that is monotonic non-decreasing with the fill level of the link-input buffer.4. The apparatus of claim 1 , wherein the first node is configured to support transport layer operations according to Transmission Control Protocol and to operate the link-input buffer according to a RED protocol.5. The apparatus of claim 1 , wherein the first node is configured to support transport ...

LOW POWER STATE FOR DSL SYSTEM AND DEVICES

Embodiments related to a power-saving state in DSL systems and devices are described and depicted. 1. A device , comprising:a controller to set a receiver in a power-saving state having a set spectral transmission power density, wherein the controller is configured to identify in the power-saving state first time intervals during which first signals are received by the receiver from a communication channel and to identify in the power-saving state second time intervals, which are between successive ones of the first time intervals during which no signals are received by the receiver from the communication channel.2. The device according to claim 1 , wherein the first signals are clock synchronization signals claim 1 , the device further comprising:a synchronizing entity to synchronize a clock signal with the clock synchronization signals, wherein the synchronization entity comprises a synchronization signal input to receive the synchronization signals;wherein the controller is configured to provide the synchronizing entity during the first time intervals in a first controlling state such that controlling of the clock signal is based on the signal received during the first time intervals at the synchronization signal input and to provide the synchronizing entity during the second time intervals in a second controlling state wherein the controlling of the clock signal is provided independent of the signal received during the second time interval at the synchronization signal input.3. The device according to claim 2 , wherein the controller is configured to transmit information related to the duration of the first time intervals or the duration of the second time intervals or the duration of the first and second time intervals over the subscriber line.4. The device according to claim 1 , wherein the first signals are test signals for updating at least one operation parameter and wherein the device further comprises a measurement entity to measure the received test ...

Systems and methods for thermal mitigation with multiple processors

A wireless communication device for thermal mitigation with multiple processors is described. The wireless communication device includes a first communications processor that processes a data call. The wireless communication device also includes a second communications processor coupled to the first communications processor. The first communications processor performs a thermal mitigation operation by sending instructions to the second communications processor when at least one thermal threshold is reached. The second communications processor receives and executes the instructions.

Method and System for End-To-End Management of Energy Efficient Networking Protocols

Aspects of a method and system for end-to-end management of energy efficient networking protocols are provided. In this regard, a path between two network nodes may be determined and one or more messages may be generated. The one or more messages may be communicated to one or more network nodes along the determined path and may configure an EEN control policy and/or one or more (EEN) parameters in those network nodes. The one or more generated messages may comprise a distinct marking that may, upon detection by the network nodes along the determined path, trigger configuration of the EEN control policy and/or EEN parameters within the one or more network nodes. The one or more messages may be may be utilized to enable and disable EEN in one or more network nodes along the path.

METHOD, APPARATUS, AND SYSTEM FOR ENABLING PLATFORM POWER STATES

To address the need for power management, the following facilitates maintaining power states in an efficient manner based at least in part on managing packets at different layers of an input/output interface that supports multiple layers. One specific example prevents a destructive event for link layer control logic because packets and information might have been lost or dropped due to a hang condition and/or a dropped packet. In yet another example of power management, this facilitates a low power platform state by preventing the loss of packets or data upon exiting a platform power state upon initiation of a link reset condition by preventing certain types of packets from reaching link layer controller logic. 1. A method for managing an interface of an agent , the method comprising:determining that an agent supports a mode of selective allowance of a packet of a first packet type and prevention of a packet of a second packet type;prior to entry into a low power state, enabling the selective allowance and prevention by packet type;upon exit from the low power state, enabling allowance of packets of both the first and second packet types.2. The method of claim 1 , wherein the interface supports a link layer and a physical layer.3. The method of claim 1 , wherein the packet types that are selectively allowed could not result in a destructive or hang condition.4. The method of claim 1 , wherein protocol layer packets are prevented.5. The method of claim 1 , wherein the first packet type is identifiable by at least one field of the packet.6. The method of claim 1 , further comprising:handshaking to determine that the agent supports the mode of selective allowance of the first packet by packet type.7. An interface for a first agent comprising:a physical layer of an interface to transmit an enable signal, the enable signal to request to enter a mode of operation that is to allow a first packet type and prevent a second packet type to be transmitted when in a low power ...

Security System and Method using Wireless Adapters and PoE Cameras

A wireless adapter and method for providing a wireless connection to at least one wired security device includes at least one combined data/power physical port to which the wired security device connects. A power supply module receives power from an external power source and a power injector provides power to the combined data/power physical port to thereby power the wired security device. In this way, the wireless adapter supplies both power and data connection at the same physical port/jack of the wired security devices, such as IP security cameras, via an interface cable from the wireless adapter. This configuration has advantages in lowering the manufacturing costs of the cameras and reducing installation costs. Furthermore, the same standard camera can be used for both standard wired connections and wireless connections.

COMMUNICATION APPARATUS, CONTROL METHOD FOR COMMUNICATION APPARATUS, AND RECORDING MEDIUM

A communication apparatus having a first state and a second state having different power consumptions receives a communication start request from another communication apparatus when the communication apparatus is in the first state, shifts a state of the communication apparatus to the second state having power consumption which is larger than that of the first state, in response to the reception of the communication start request, and transmits a response to the communication start request to the another communication apparatus if the communication setting used for the communication with the another communication apparatus is not changed after shifting to the second state, and does not transmit a response indicating that the communication in accordance with the communication start request is available to the another communication apparatus if the communication setting is changed. 1. A communication apparatus having a first state and a second state having different power consumption , the communication apparatus comprising:a reception unit configured to receive a communication start request from another communication apparatus when the communication apparatus is in the first state;a shifting unit configured to shift a state of the communication apparatus to the second state having power consumption which is larger than that of the first state, in response to the reception of the communication start request by the reception unit; anda transmission unit configured to transmit a response to the communication start request to the another communication apparatus,wherein, if a communication setting used for communication with the another communication apparatus is changed after shifting to the second state, the transmission unit does not transmit the response indicating that the communication in accordance with the communication start request is available to the another communication apparatus.2. The communication apparatus according to claim 1 , further comprising:a ...

NETWORK RELAY APPARATUS AND CONTROL METHOD THEREOF

A network relay apparatus includes: a clock generation circuit, a processing circuit, a load detector and a clock cutoff circuit. The clock generation circuit is configured to generate a clock signal having periodical clock pulses. The processing circuit is configured to operate in synchronism with the clock pulses, in order to process data that is to be relayed by the network relay apparatus. The load detector is configured to detect a load of processing by the processing circuit. The clock cutoff circuit is configured to cut off supply of the clock pulses from the clock generation circuit to the processing circuit in order to partially eliminate the clock pulses at a rate corresponding to the load detected by the load detector and to provide the clock signal having the partially eliminated clock pulses to the processing circuit. 1. A network relay apparatus , comprising:a clock generation circuit configured to generate a clock signal having periodical clock pulses;a processing circuit configured to operate in synchronism with the clock pulses, in order to process data that is to be relayed by the network relay apparatus;a load detector configured to detect a load of processing by the processing circuit; anda clock cutoff circuit configured to cut off supply of the clock pulses from the clock generation circuit to the processing circuit in order to partially eliminate the clock pulses at a rate corresponding to the load detected by the load detector and to provide the clock signal having the partially eliminated clock pulses to the processing circuit.2. The network relay apparatus according to claim 1 , whereinthe processing circuit includes a first partial circuit and a second partial circuit,the load detected by the load detector is both a load of the first partial circuit and a load of the second partial circuit that are detected individually, a first clock generation circuit configured to generate a first clock signal having first clock pulses, as a clock ...

METHOD FOR OBTAINING INFORMATION ABOUT THE OPERATING STATES OF NODES OF A COMMUNICATIONS NETWORK IN VIEW OF OPTIMIZED-ENERGY-COST ROUTING, AND CORRESPONDING DEVICE

The method is dedicated to managing information related to the operated states of a group of nodes of a communications network, connected to one another by oriented links each associated with a maximum transmission capacity controlled by elements of the nodes that may be placed into a state from among P operating states, chosen from among an up state and a down state and/or at least one intermediate idle state. This method includes (i) obtaining, for each oriented link of each node, P values Vjj′i, where i=1 to P, respectively representative of the distribution percentages of its maximum transmission capacity between elements placed into P different operating states, and (ii) building with these obtained values Vjj′i an operating state table of the nodes of the group, which for each of the links is representative of its available, unavailable, and, if any, partially available transmission capacities. 1. A method for managing information related to the operating state of a group of nodes of a communications network , connected to one another by oriented links each associated with a maximum transmission capacity controlled by elements of said nodes that may be placed in one state from among P operating states , chosen from among an up state and a down state and/or at least one intermediate idle state , said method comprising the following steps: (i) obtaining , for each oriented link of each node , P values Vjj′i , where i=1 to P , respectively representative of the distribution percentages of its maximum transmission capacity between elements placed within said P different operating states , and (ii) building with said obtained values Vjj′i an operating state table of said nodes of the group , representative for each of said oriented links of its available , unavailable , and , if any partially available transmission capacities.2. A method according to claim 1 , wherein during step (ii) P graphs each representative of the oriented links between said nodes and values ...

METHOD AND APPARATUS FOR EXCHANGING MESSAGES

A method and an apparatus for communicating with a second apparatus. The apparatus includes a controller and a transceiver for exchanging a predetermined number of data fields between the apparatuses by transmitting and receiving frames having one or more data fields and including in each frame a field indicating which data fields the apparatus has not yet received successfully. 1. An apparatus in a packet network , comprising:at least one processor; andat least one memory including computer program code,the at least one memory and the computer program code configured to, with the at least one processor, cause the apparatus at least to perform:communicate with a second apparatus by exchanging a predetermined number of data fields between the apparatuses by transmitting and receiving frames comprising one or more data fields;including in each frame a field indicating which data fields the apparatus has not yet received successfully.2. The apparatus of claim 1 , wherein the apparatus is configured to receive from the second apparatus frames indicating which data fields the second apparatus has not yet received successfully claim 1 ,transmit the indicated data fields to the second apparatus.3. The apparatus of claim 1 , wherein the apparatus is configured to continue the transmission of data fields until receiving a frame with a field indicating that all data fields have been received successfully.4. The apparatus of claim 1 , wherein the apparatus is configured to transmit the predetermined number of data fields to the second apparatus and receive the same predetermined number of data fields from the second apparatus.5. The apparatus of claim 1 , wherein the apparatus is configured to transmit a first predetermined number of data fields to the second apparatus and receive a second predetermined number of data fields from the second apparatus claim 1 , wherein the first and second predetermined numbers are different.6. A method in a packet network apparatus claim 1 , ...

Method and arrangement for the power management of a digital communication line

The present invention relates to a method and an arrangement for the power management of a digital communication line such as a digital subscriber line DSL ( 2201 ). A problem addressed by the invention is that the transitioning of the digital subscriber line ( 2201 ) from a low transmission power state to a high transmission power state can cause disturbance to adjacent lines. This problem is solved by the current invention by an access node AN ( 2100 ) that is arranged to step-wise increase the power state until the high transmission power state has been reached. The invention also comprises embodiments of monitoring and detecting traffic events that serve as triggers of the transitioning.

Cable Imbalance Diagnostics Between Channels That Include Wire Pairs for Power Over Ethernet Transmission

Cable imbalance diagnostics between channels that include wire pairs for power over Ethernet transmission. In one embodiment, measurements of one or more characteristics of a first channel that includes a first of four twisted wire pairs in a network cable are performed along with measurements of one or more characteristics of a second channel that includes a second of the four twisted wire pairs in the network cable. A determination is then made as to whether the measured one or more characteristics of the first channel and the measured one or more characteristics of the second channel indicate an imbalance between the first channel and the second channel. Adjustments such as isolation, reporting or compensation can then be made in response to the determination 1. A method , comprising:measuring one or more characteristics of a first channel that includes a first of four twisted wire pairs in a network cable, and one or more characteristics of a second channel that includes a second of the four twisted wire pairs, wherein the four twisted wire pairs are used to deliver power from a power sourcing equipment to a powered device;determining, by the power sourcing equipment, whether the measured one or more characteristics of the first channel and the measured one or more characteristics of the second channel indicate an imbalance between the first channel and the second channel; andadjusting an operation of the power sourcing equipment in delivering power to the powered device in response to the determination.2. The method of claim 1 , wherein the measuring comprises measuring an impedance of the first channel and the second channel.3. The method of claim 2 , wherein the determining comprises determining a difference in impedance between the first channel and the second channel.4. The method of claim 1 , wherein the imbalance is an inductive or capacitive imbalance.5. The method of claim 1 , further comprising generating a message that reports the determined imbalance ...

Channel-Occupancy Efficient, Low Power Wireless Networking

An apparatus and method are provided for efficiently sharing a single wireless channel and for providing improved power saving. Automatic beacon “sliding” establishes a round-robin contention-free channel schedule among multiple IBSSs. Entering an idle state immediately following communication after a beacon saves power. Further power savings occur when presumptions of pending traffic may be made. 1. A method of reducing contention between independent basic service sets (IBSSs) , the method comprising:setting a priority of a beacon packet less than a priority of (a) at least one of DCF interframe space (DIFS) packets and extended interframe space (EIFS) packets, or (b) any other type of packet; andsetting a beacon refresh period for each IBSS equal to at least a sum of beacon intervals for all IBSSs for (a), or a sum of data burst lengths for all IBSSs for (b).2. The method of claim 1 , wherein one other type of packet includes a data burst.3. The method of claim 2 , wherein a length of the data burst is less than a target beacon transmission time (TBTT)/N claim 2 , and wherein N is a number of the IBSSs active on one channel.4. The method of claim 1 , further including setting an arbitration inter-frame space (AIFS) and a contention window (CWIN) of the beacon packet.5. The method of claim 4 , wherein the AIFS=5 and the CWIN=7 relative to a data packet having its AIFS=1 and its CWIN=3.6. The method of claim 1 , wherein the DIFS packets include at least one of data packets and management packets.7. A system configured to reduce contention between independent basic service sets (IBSSs) claim 1 , the system using a technique comprising:setting a priority of a beacon packet less than a priority of (a) at least one of DCF interframe space (DIFS) packets and extended interframe space (EIFS) packets, or (b) any other type of packet; andsetting a beacon refresh period for each IBSS equal to a sum of data burst lengths for all IBSSs for (a), or at least a sum of beacon ...

Energy Efficient Sleep Signature in Power Over Ethernet

An energy efficient sleep signature in power over Ethernet. In one embodiment, a signature of a powered device is first detected. It is then determined whether the detected signature is indicative of an unknown powered device. In one example, a detected signature of an approximately 25 kΩ impedance is indicative of an unknown powered device. Where the detected signature is indicative of an unknown powered device a normal PoE startup powering process can be used that includes a conventional detection, classification and powering process. Where the detected signature is indicative of a powered device that was previously known to the PSE, then powering of the PD can proceed with a fast-restart powering method that retains previous powering parameters.

METHODS AND APPARATUS FOR INTELLIGENT POWER REDUCTION IN COMMUNICATIONS SYSTEMS

Methods and apparatus for power control in a communications device are described. Bonding of channels in a modem may be dynamically adjusted responsive to user activity or demand for bandwidth. Bonded channel Configurations may be adjusted to single channel configurations for low power operation. Modem configuration may be dynamically adjusted so as to maintain only required synchronization and system information to facilitate rapid data transfer resumption upon demand. 122-. (canceled)23. A method for controlling power consumption in a modem , comprising:bonding a plurality of channels to create a first bonded channel set having a first number of channels, the first number of channels including a primary channel from which the modem derives a master clock timing and one or more secondary channels which are processed using the master clock timing derived from the primary channel;processing, using the derived master clock timing, data received via the first bonded channel set;receiving a request for bandwidth adjustment;responsive to the request for bandwidth adjustment, reducing the number of channels in the first bonded channel set so as to define a second bonded channel set having only the primary channel; andprocessing data provided from the second bonded channel set in the modem.24. The method of claim 23 , wherein the request for bandwidth adjustment is associated with a requirement to reduce power consumption.25. The method of claim 23 , wherein the request for bandwidth adjustment is associated with a requirement to reduce data throughput.26. The method of claim 23 , wherein the request for bandwidth adjustment is generated is response to a determination that bandwidth usage on said first bonded channel set is low and is unlikely to increase for a period of time.27. The method of comprising:receiving a second request for bandwidth adjustment; andincreasing the number of channels in the second bonded channel set so as to define a third bonded channel set ...

Bus system

The invention relates to a bus system comprising a bus line, a plurality of consumers of electric power which are connected to one another via the bus line, having a plurality of separate electric current supply units which each make available an electric voltage for the current supply with at least one consumer. The bus system is divided into segments each having one or more consumers respectively associated with a current supply unit and which each have a first current supply line and a second current supply line. The first current supply line and the second current supply line are respectively not directly electrically conductively connected to the first current supply line and to the second current supply line of a different segment and are preferably separated from the first current supply line and the second current supply line of the other segment in a galvanic manner.

Standby Mode for Use in a Device Having a Multiple Channel Physical Layer

The present invention provides a way of placing a physical layer device into a standby mode. After a link is established between multiple devices, a determination is made whether the device has data to transmit or whether a standby request was received from a link partner. If a standby request was received or the device has no data to transmit, standby mode is entered. In standby mode, unneeded circuitry is powered down. A transmitter in a channel and a receive path in a separate channel remain powered. While operating in standby mode, the PHY layer continuously transmits a standby code on the one or more channels that are not powered down. Standby mode is discontinued when a transceiver has data to transmit or when energy is detected on the powered down channels. Standby mode is also discontinued when no standby code is received, indicating a disconnect between devices. 1. A transceiver including a physical layer (PHY) , the PHY comprising:a transmitter configured to transmit data; initiate a standby mode in response to determining that a period of time during which the transceiver has no data to transmit exceeds a value of a wait timer; and', transmit a standby code on a channel of the PHY to maintain a link between the transceiver and a remote transceiver, and', 'initiate powering down a circuit in the transceiver., 'in response to initiating the standby mode], 'a PHY control, wherein the PHY control is configured to2. The transceiver of claim 1 , wherein the PHY control is further configured to:establish the link between the transceiver and the remote transceiver.3. The transceiver of claim 1 , wherein the PHY is further configured to:operate in a normal mode before initiating the standby mode.4. The transceiver of claim 1 , wherein the PHY control is further configured to:initiate the standby mode in response to receiving a standby request.5. The transceiver of claim 1 , wherein the PHY control is further configured to: initiate powering down the transmitter, ...

DEVICE FOR CONNECTING TWO PIECES OF EQUIPMENT VIA AN ETHERNET LINK, AND A DOCKING STATION FOR SUCH A PIECE OF EQUIPMENT

A connection device for connecting a first piece of electronic equipment to a second piece of electronic equipment, the device comprising two Ethernet type interfaces that are linked together by an up line and a down line and that are arranged for each of them to be linked to a respective one of the pieces of equipment and to transmit data in differential mode, two power supply modules, each associated with a respective one of the pieces of equipment and wired in common mode between the up and down lines in order to transmit a power supply carrier signal in alternating current, and two secondary transmission modules, each associated with a respective one of the power supply modules and arranged to enable data to be transmitted by modulating the power supply carrier signal. 1. A connection device for connecting a first piece of electronic equipment to a second piece of electronic equipment , the device comprising two Ethernet type interfaces that are linked together by an up line and a down line and that are arranged for each of them to be linked to a respective one of the pieces of equipment and to transmit data in differential mode , two power supply modules , each associated with a respective one of the pieces of equipment and wired in common mode between the up and down lines in order to transmit a power supply carrier signal in alternating current , and two secondary transmission modules , each associated with a respective one of the power supply modules and arranged to enable data to be transmitted by modulating the power supply carrier signal.2. The device according to claim 1 , wherein the secondary transmission module of the first piece of equipment is arranged to perform modulation by phase shift keying.3. The device according to claim 1 , wherein the secondary transmission module of the second piece of equipment is arranged to transmit data by modulating current consumption.4. The device according to claim 3 , wherein the modulation of current consumption ...

AIRCRAFT COMMUNICATION BUS FAULT ISOLATOR APPARATUS

A structure and a first panel are operably disposed with respect to the structure. A first plurality of nodes is disposed within the first panel, including a first plurality of power distribution network nodes in a first power distribution network, and wherein the first plurality of nodes further comprises a first group of nodes. A second panel is operably disposed with respect to the structure. A second plurality of nodes is disposed within the second panel, including a second plurality of power distribution network nodes in a second power distribution network isolated from the first power distribution network. The second plurality of nodes further comprises a second group of nodes. A bus guardian, separate from the two panels, electrically connects the first panel and the second panel. The bus guardian is configured to network the first group of nodes and the second group of nodes in a network. 1. An apparatus comprising:a structure;a first panel operably disposed with respect to the structure;a first plurality of nodes disposed within the first panel, wherein the first plurality of nodes comprises a first plurality of power distribution network nodes in a first power distribution network, and wherein the first plurality of nodes further comprises a first group of nodes;a second panel operably disposed with respect to the structure;a second plurality of nodes disposed within the second panel, wherein the second plurality of nodes comprises a second plurality of power distribution network nodes in a second power distribution network, wherein the second plurality of nodes further comprises a second group of nodes, and wherein the first power distribution network is electrically isolated from the second power distribution network; anda bus guardian physically disposed with respect to the structure apart from the first panel and the second panel, wherein the bus guardian is electrically connected to the first panel and to the second panel, and wherein the bus guardian ...

INFORMATION PROCESSING SYSTEM, INFORMATION PROCESSING APPARATUS, LOCATION IDENTIFICATION METHOD, AND NON-TRANSITORY COMPUTER-READABLE STORAGE MEDIUM

An information processing system includes: a plurality of devices, each of the devices mounted on a rack and coupled to any one of a plurality of power outlets; and a management apparatus, wherein the management apparatus includes a processor configured to execute power control processing that includes stopping power supply to a first power outlet among the plurality of power outlets, execute determination processing that includes determining whether or not each of the plurality of devices transmits a response to a first packet from the management apparatus to the devices during the power supply to the first power outlet is stopped, and execute recording processing that includes recording identification information of a device from which a response to the first packet is not received, in association with identification information of the first power outlet. 1. An information processing system comprising:a plurality of devices, each of the devices mounted on a rack and coupled to any one of a plurality of power outlets; anda management apparatus,wherein the management apparatus includes a processor configured toexecute power control processing that includes stopping power supply to a first power outlet among the plurality of power outlets,execute determination processing that includes determining whether or not each of the plurality of devices transmits a response to a first packet from the management apparatus to the devices during the power supply to the first power outlet is stopped, andexecute recording processing that includes recording identification information of a device from which a response to the first packet is not received, in association with identification information of the first power outlet.2. The information processing system according to claim 1 ,wherein the recording processing includes recording first information indicating that there are no coupled devices in association with identification information of a second power outlet without power ...

Synchronous playback with battery-powered playback device

Example techniques related to battery-powered playback devices. In an example, a first battery-powered playback device receives audio content from a network device and forwards the audio content to a second playback device for synchronous playback of the audio content with the second playback device, plays back the audio content, detects that a battery level of a battery of the first playback device has fallen below a predefined threshold, and ceases the forwarding of the audio content after the battery level of the battery of the first playback device has fallen below the predefined threshold. After the battery level of the first playback device has fallen below the predefined threshold, the second playback device receives the audio content from the network device, forwards the audio content to the first playback device for synchronous playback with the first playback device, and plays back the audio content in synchrony with the first playback device. 1. A system comprising first and second playback devices , wherein:the first playback device comprises at least one battery, a processor, and tangible, non-transitory, computer-readable memory having first instructions encoded therein, wherein the first instructions, when executed by the processor of the first playback device, cause the first playback device to (i) receive audio content from a network device and forward the audio content to a second playback device for synchronous playback of the audio content with the second playback device, (iii) play back the audio content, (iv) detect that a battery level of the at least one battery of the first playback device has fallen below a predefined threshold, and (v) cease the forwarding of the audio content after the detection of the battery level of the at least one battery of the first playback device has fallen below the predefined threshold; andthe second playback device comprises a processor and tangible, non-transitory, computer-readable media having second ...

Switched power over ethernet connector

An arc prevention system including a jack having a receptacle, with the receptacle having an upper wall, a bottom wall, two opposing side walls and a back wall between the two opposing side walls, a sensor unit positioned on the back wall of the receptacle, where the sensor unit is positioned on the back wall of the receptacle such that the sensor unit engages a plug inserted into the receptacle.

REVERSE POWER FEEDING POWER SOURCING EQUIPMENT AND METHOD

A reverse power feeding PSE in electrical communication with a DPU, the PSE constituted of: a control circuitry; and a detection and classification signal circuitry, arranged to: output a detection signal; output a classification signal; and output an additional signal exhibiting a voltage below an operating range, and wherein the control circuitry is arranged to: responsive to the output first detection signal, detect a valid signature resistance; responsive to the output first classification signal, receive a classification current and determine the class of the DPU; responsive to the output additional signal, detect the absence, or presence, of an off-hook phone; responsive to the detection of the absence of an off-hook phone, and further responsive to the detection of the valid signature resistance, output power exhibiting a voltage within the operating range; and responsive to the detection of the presence of an off-hook phone, not output power. 1. A reverse power feeding powering sourcing equipment (PSE) in electrical communication with a power source and a distribution point unit (DPU) , the PSE comprising:a power output terminal;a control circuitry; anda detection and classification signal circuitry coupled to said power output terminal, output a first detection signal exhibiting a voltage within a predetermined detection range;', 'output a first classification signal exhibiting a voltage within a predetermined classification range; and', 'output an additional signal, said additional signal exhibiting a voltage below a predetermined operating range, and, 'wherein said detection and classification signal circuitry is arranged, responsive to said control circuitry, to responsive to said output first detection signal, detect a valid signature resistance presented to said power output terminal;', 'responsive to said output first classification signal, receive a first classification current at said power output terminal;', 'responsive to said received first ...

ACTIVE POWER OVER ETHERNET CONTROL APPARATUS WITH LOW POWER CONSUMPTION

An active power over Ethernet control apparatus with low power consumption includes a control unit and a low-power-consumption control circuit. The control unit is installed inside a power sourcing equipment. The low-power-consumption control circuit includes a detecting circuit, a handshaking circuit, and a self-holding circuit. The detecting circuit provides a first control signal. The handshaking circuit receives the first control signal and provides a second control signal. The self-holding circuit receives the second control signal. When a powered device is not connected to the power sourcing equipment, a power-supplying path from the power sourcing equipment to the powered device is disconnected. When the powered device is connected to the power sourcing equipment, the handshaking circuit is controlled by the first control signal and the self-holding circuit is controlled by the second control signal to make the power-supplying path be connected. 1. An active power over Ethernet control apparatus with low power consumption , comprising:a control unit installed inside a power sourcing equipment, and [ a voltage-divided resistor network, and', 'a first power switch coupled to the voltage-divided resistor network,, 'a detecting circuit configured to provide a first control signal, and the detecting circuit comprising, 'a handshaking circuit coupled to the detecting circuit and configured to receive the first control signal and provide a second control signal, and', 'a self-holding circuit coupled to the handshaking circuit and configured to receive the second control signal,, 'a low-power-consumption control circuit, comprisingwherein when a powered device is not connected to the power sourcing equipment, the first power switch is turned off to make the detecting circuit provide the first control signal with a high level, and a power-supplying path from the power sourcing equipment to the powered device is disconnected; when the powered device is initially ...

ELECTRONIC SUBSYSTEM HAVING MULTIPLE POWERED DEVICES PRIORITIZED FOR PROVIDING POWER TO THE SUBSYSTEM

In an embodiment, a powered device (PD) interface circuit includes a lower priority PD and a higher priority PD. The lower priority PD is configured to receive, and to couple to a power supply onboard a subsystem, a first power signal from first power source equipment (PSE). And the higher priority PD is configured to receive a second power signal from second PSE, to couple the second power signal to the power supply, and to prevent the lower priority PD from coupling the first power signal to the power supply while the higher priority PD is coupling the second power signal to the power supply. That is, such a PD interface circuit is configured to impart a respective priority to each PD such that if two or more PDs receive power from respective PSEs, then the interface circuit enables only the PD having the higher priority to couple a corresponding PSE power signal to the power supply onboard the subsystem. 1. An interface circuit , comprising:a first powered device port configured to receive, and to couple to a power supply, a first power signal; and to receive a second power signal,', 'to couple the second power signal to the power supply, and', 'to prevent the first powered device from coupling the first power signal to the power supply while the second powered device is coupling the second power signal to the power supply., 'a second powered device configured'}2. The interface circuit of wherein at least one of the first powered device and the second powered device includes a respective Ethernet powered device.3. The interface circuit of wherein the first powered device is configured:to receive a combined signal including a data signal superimposed on the first power signal; andto extract the first power signal from the combined signal.4. The interface circuit of wherein the second powered device is configured:to receive a combined signal including a data signal superimposed on the second power signal; andto extract the second power signal from the combined ...

SYSTEM AND METHOD FOR A SUBSCRIBER-POWERED NETWORK ELEMENT

A system for powering a network element of a fiber optic wide area network is disclosed. When communication data is transferred between a central office (CO) and a subscriber terminal using a network element to convert optical to electrical (O-E) and electrical to optical (E-O) signals between a fiber from the central office and twisted wire pair, coaxial cable or Ethernet cable transmission lines from the subscriber terminal, techniques related to local powering of a network element or drop site by the subscriber terminal or subscriber premise remote powering device are provided. Certain advantages and/or benefits are achieved using the present invention, such as freedom from any requirement for additional meter installations or meter connection charges and does not require a separate power network. 1. A customer premise power injector device for electrically powering an optical network unit (ONU) of a wide area network , the customer premise power injector device disposed for use intermediate to a subscriber terminal and the ONU , the customer premise power injector device comprising:a first electrical port disposed to couple to a first transmission line for coupling to the subscriber terminal;a second electrical port disposed to couple to a second transmission line for coupling to the ONU and disposed to receiving a data signal at a first frequency and disposed to receiving a message regarding a DC power on a second frequency;a third electrical port disposed to couple to mains power;a DC power source coupled to the third electrical port and for converting the mains power to the DC power; andan electrical coupling device coupled to the first electrical port and the electrical coupling device coupled to the second electrical port, wherein the electrical coupling device is disposed to pass subscriber communications from the subscriber terminal received from the first electrical port to the second electrical port and wherein the electrical coupling device is disposed ...

SYSTEM AND METHOD FOR BEACON

A beacon includes an interface, a sensor, an indicator and a controller. The controller is communicatively coupled to the interface, the sensor and the indicator, the controller configured to receive control information via the interface and the sensor and to generate control instructions in response to the control information for the indicator. 125-. (canceled)26. A circuit board assembly comprising:an Ethernet port;a power converter coupled to the Ethernet port;a processing unit comprising a processor and a memory device, the processing unit coupled to the power converter and communicatively coupled to the Ethernet port; anda sensor coupled to the power converter and communicatively coupled to the processing unit, the power converter being configured to convert power received via the Ethernet port for use by the processing unit and the sensor, the processing unit being configured to receive sensor signaling from the sensor and send sensor information via the Ethernet port in response to the sensor signaling.27. The circuit board assembly of claim 26 , wherein the sensor comprises at least one of an ambient light sensor claim 26 , a temperature sensor claim 26 , an occupancy sensor claim 26 , a motion sensor claim 26 , a noise sensor claim 26 , an air quality sensor claim 26 , a humidity sensor claim 26 , an acceleration sensor claim 26 , a proximity sensor claim 26 , a magnetism sensor claim 26 , a pressure sensor claim 26 , a motion sensor claim 26 , a flux sensor claim 26 , a CO/CO2 sensor claim 26 , a correlated color temperature (CCT) sensor claim 26 , a red/green/blue (RGB) light sensor claim 26 , an active or passive infrared (PIR) sensor claim 26 , a visual information sensor and an audio information sensor.28. The circuit board assembly of claim 26 , wherein the processing unit further comprises an Ethernet PHY.29. The circuit board assembly of claim 26 , the processing unit being further configured to receive sensor signaling from the sensor and to ...

BI-DIRECTIONAL POWER OVER ETHERNET FOR DIGITAL BUILDING APPLICATIONS

In one or more embodiments, a system includes a plurality of network devices comprising a plurality of ports, a power bus connecting the network devices, wherein power is shared between the network devices over the power bus, and a controller for identifying available power and allocating power to the ports. The ports include a plurality of PSE (Power Sourcing Equipment) PoE (Power over Ethernet) ports each operable to transmit power to a device connected to one of the PSE PoE ports, a plurality of PD (Powered Device) PoE ports each operable to receive power from a device connected to one of the PD PoE ports, and a plurality of bi-directional PoE ports each configurable to operate as a PSE PoE port to transmit power to a device connected to one of the bi-directional PoE ports or as a PD PoE port to receive power from the connected device. 1. A system comprising:a plurality of network devices comprising a plurality of ports;a power bus connecting said plurality of network devices, wherein power is shared between said plurality of network devices over the power bus; anda controller for identifying available power and allocating power to said plurality of ports; a plurality of PSE (Power Sourcing Equipment) PoE (Power over Ethernet) ports each operable to transmit power to a device connected to one of the PSE PoE ports;', 'a plurality of PD (Powered Device) PoE ports each operable to receive power from a device connected to one of the PD PoE ports; and', 'a plurality of bi-directional PoE ports each configurable to operate as a PSE PoE port to transmit power to a device connected to one of the bi-directional PoE ports or as a PD PoE port to receive power from the connected device., 'wherein said plurality of ports comprises2. The system of wherein the device connected to one of the bi-directional PoE ports comprises a solar device.3. The system of wherein the device connected to one of the bi-directional PoE ports comprises a rechargeable battery.4. The system of ...

DC-POWER SUPPLY DEVICE

The invention relates to a DC-power supply device () for supplying operational DC power to an external DC-powered device (a) via a wired connection (. a) that comprises a DC-power output interface (a), a communication unit () configured to receive a shutdown-request signal (S) indicative of a shutdown time-span (ts) during which no operational DC power is required and to provide a shutdown-trigger signal (), a DC-powered device detection unit (a) configured to determine a connected state and a disconnected state of the DC-powered device and to provide a connection status signal () indicative thereof and a power control unit () configured, upon reception of the shut-down-trigger signal, to disable provision of operational DC power during the shutdown time-span and, upon reception of the connection status signal indicative of the disconnected state, to re-enable provision of operational DC-power, thus improving a control of operational DC power provision. 1. A DC-power supply device for supplying operational DC power to an external DC-powered device via a wired connection , the DC-power supply device comprising:a DC-power output interface for providing the operational DC power to the DC-powered device via the wired connection, the DC-power output interface being operable in a power-provision-enabled mode in which operational DC power is deliverable to the DC-powered device upon request, and in a power-provision-disabled mode in which operational DC power is not deliverable to the DC-powered device;a communication unit configured to receive a shutdown-request signal indicative of a shutdown time-span (ts) during which no operational DC power is required by the DC-powered device via the DC-power output interface, and to provide a shutdown-trigger signal indicative thereof; wherein the shutdown-request signal is provided via the wired connection by the DC-powered device;{'b': '3', 'a DC-powered device detection unit configured to detect a connected state, in which a DC- ...

Power over Ethernet Powered Device Configured for Low Duty-Cycle Operation

In some embodiments, a powered device includes a powered device circuit, which may include a maintain power signature (MPS) circuit configured to compare a sense current to a reference current. In a first mode, the MPS circuit may be configured to automatically generate an MPS signal when the sense current is less than the reference current. 1. A powered device comprising: 'a maintain power signature (MPS) circuit configured to compare a sense current to a reference current and, in a first mode, to automatically generate an MPS signal when the sense current is less than the reference current.', 'a powered device circuit including2. The powered device of claim 1 , further comprising a bypass transistor including a gate coupled to the MPS circuit claim 1 , a drain coupled to a hot swap switch output node claim 1 , and a source coupled to a supply node; and in a high power mode, the MPS circuit activates the bypass transistor to shunt current detection circuitry of the MPS circuit; and', 'in a low power mode, the MPS circuit deactivates the bypass transistor such that current flows from the hot swap switch output node through the current detection circuitry., 'wherein3. The powered device of claim 2 , further comprising:a direct current (DC) to DC converter configured to provide a signal to the MPS circuit; andwherein the MPS circuit determines one of the high power mode and the low power mode based on the signal.4. The powered device of claim 1 , further comprising a configuration node coupled to the MPS circuit.5. The powered device of claim 4 , wherein claim 4 , in the first mode claim 4 , the configuration node is coupled to a first power supply node during startup.6. The powered device of claim 4 , wherein the MPS circuit may be configured to selectively generate the MPS signal claim 4 , in a second mode claim 4 , when the configuration node is at a logic high voltage level during startup.7. The powered device of claim 6 , wherein claim 6 , in the second mode ...

STANDBY POWERING FOR POWER OVER ETHERNET

A respective electronically controlled switch is provided in series with the output of each PD. A control circuit having a timer functionality is further provided, with the electronically controlled switches responsive to the control circuit. Upon detection that a second PD, defined temporally, is provided with operating power, the respective electronically controlled switch is maintained open for a predetermined hold-off time period sufficient to ensure detection by the respective PD control state machine of the completion of startup. After expiration of the predetermined hold-off time period, the respective electronically controlled switch is closed thus enabling normal operation. 1. A power over Ethernet powering arrangement comprising:a first powered device arranged to receive power over a respective first communication cabling;a second powered device arranged to receive power over a respective second communication cabling;a load arranged to receive power from each of said first and second powered device;a control circuitry;a first electronically controlled switch responsive to said control circuitry and associated with said first powered device, said first electronically controlled switch arranged to prevent the flow of current from said first powered device to the load when opened and allow the flow of current from said first powered device to the load when closed; anda second electronically controlled switch responsive to said control circuitry and associated with said second powered device, said second electronically controlled switch arranged to prevent the flow of current from said second powered device to the load when opened and allow the flow of current from said second powered device to the load when closed, detect operating voltage for a first temporal one of said first and second powered device;', 'detect operating voltage for a second temporal one of said first and second powered device;', 'open the associated electronically controlled for the ...

COMMUNICATION MONITORING DEVICE

A communication monitoring device includes, a first voltage application circuit , mounted on a first connector portion arranged at one end of a communication cable having at least two signal lines , or a first repeater or a first communication device, connecting the first connector portion , wherein the first voltage application circuit applies an alternating current voltage at a predetermined frequency to between any signal lines in the communication cable , and a second display portion , mounted on a second connector portion arranged at an other end of the communication cable , or a second repeater or a second communication device, connecting the second connector portion , wherein the second display portion detects and displays the alternating current voltage at the predetermined frequency applied to between the any signal lines in the communication cable 1. A communication monitoring device , comprising:a first voltage application circuit, mounted on a first connector portion arranged at one end of a communication cable having at least two signal lines or on a first repeater or a first communication device, connecting the first connector portion, wherein the first voltage application circuit applies an alternating current voltage at a predetermined frequency to between any signal lines in the communication cable; anda second display portion, mounted on a second connector portion arranged at an other end of the communication cable, or on a second repeater or a second communication device, connecting the second connector portion, wherein the second display portion detects and displays the alternating current voltage at the predetermined frequency applied to between any signal lines in the communication cable.2. The communication monitoring device according to claim 1 , further comprising a first display portion mounted on the first connector portion claim 1 , the first repeater or the first communication device claim 1 ,wherein the first display portion detects and ...

MPS Generation System and Method

An MPS generation method, the method constituted of: at a predetermined frequency, alternately outputting a first MPS current pulse for a predetermined first time period and not outputting the first MPS current pulse for a predetermined first off time period; during the first time period, determining the magnitude of a current drawn by an input capacitor of a DC to DC converter; and responsive to the determined input capacitor current magnitude, outputting between the first terminal and the second terminal a second MPS current pulse for a predetermined second time period during the predetermined first off time period. 1. A powered device (PD) interface comprising:a first terminal and a second terminal arranged for connection towards a power supply equipment;a maintain power signature (MPS) circuitry;a current sense circuitry arranged to sense the magnitude of a current flowing therethrough; anda control circuitry in communication with said current sense circuitry, said MPS circuitry responsive to said control circuitry, output a first current pulse for a predetermined first time period; and', 'not output said first current pulse for a predetermined first off time period,, 'wherein said MPS circuitry is arranged, at a predetermined frequency, responsive to said control circuitry, to alternatelywherein said control circuitry is arranged, responsive to said sensed current magnitude, to compare the magnitude of a current sensed by the current sense circuitry to a predetermined minimum magnitude current value,wherein said control circuitry is arranged, responsive to comparing the magnitude of a current sensed by the current sense circuitry to a predetermined minimum magnitude current value to output a second current pulse for a predetermined second time period during said predetermined first off time period if the magnitude of the current sensed by the current sense circuitry is less than the predetermined minimum magnitude current value.2. The PD interface of claim 1 , ...

SYSTEM AND METHOD FOR SUPPLYING UNINTERRUPTIBLE POWER TO A POE DEVICE IN A POWERED STATE

A system and method for supplying uninterruptible power includes a housing, a power supply input, a power source equipment input, a first powered device output, a second powered device output, an alternative power supply, and a control module. The control module includes a comparator, a switch, a converter and an injector. The injector includes a regulator and power autonegotiation module. The alternative power supply includes a plurality of battery packs in series. There can also be first and second powered devices with uninterrupted power, even when only one of the powered devices breaks. A power is uninterrupted to the first powered device, even if power is stopped to the second powered device, due to a repair or fault of the second powered device. 1. A system for supplying uninterruptible power , comprising:a housing;a power supply input disposed within said housing, said power supply input having a power source interface on an outside of said housing;a power source equipment input disposed within said housing, said power source equipment input having a power source equipment interface on an outside of said housing;a powered device output disposed within said housing, said powered device output having a powered device interface on an outside of said housing;an alternative power supply disposed within said housing;a powered device connected to said powered device output by an Ethernet cable;power source equipment connected to said power source equipment input, said power source equipment being powered separate from said power supply input and said alternative power supply; anda control module connected to said power supply input, said power source equipment input, said powered device output, and said alternative power supply,wherein said control module comprises an injector means, a comparator means, a switch means, and a converter means,said comparator means detecting power from said power supply input and to said powered device output and connecting said power ...

POWER TOOL POWERED BY POWER OVER ETHERNET

A hand-held power tool may include a motor, an end effector operably coupled to the motor and operable responsive to operation of the motor, and a control unit configured to control operation of the motor based at least in part on data communicated to the control unit from an external network. Power to the motor and the data communicated to the control unit from the external network may both be provided via a single cable. 1. A hand-held power tool comprising:a motor;an end effector operably coupled to the motor and operable responsive to operation of the motor; anda control unit configured to control operation of the motor based at least in part on data communicated to the control unit from an external network,wherein power to the motor and the data communicated to the control unit from the external network are both provided via a single cable.2. The power tool of claim 1 , wherein the end effector is configured to execute material removal claim 1 , component assembly claim 1 , or component tightening.3. The power tool of claim 2 , further comprising an Ethernet port to which the single cable is operably coupled claim 2 , and wherein at least 12.95 W of power is available at the Ethernet port.4. The power tool of claim 1 , further comprising an accumulator configured to charge when power demand by the motor is less than power available via the single cable.5. The power tool of claim 4 , wherein the accumulator is configured to discharge when power demand by the motor is greater than power available via the single cable.6. The power tool of claim 5 , wherein the accumulator comprises one or more rechargeable batteries.7. The power tool of claim 5 , wherein the accumulator comprises one or more capacitors claim 5 , supercapacitors or ultracapacitors.8. The power tool of claim 4 , wherein the accumulator is configured to discharge responsive to actuation of a boost actuator.9. The power tool of claim 4 , wherein the accumulator is configured to discharge responsive to ...

POWER DISTRIBUTION AND COMMUNICATIONS FOR ELECTRIC VEHICLE

In one embodiment, an electric vehicle system includes a power system for charging a battery installed in an electric vehicle and comprising a bi-directional power and data connector for receiving power and data from or transmitting the power and data to an electric vehicle charging device, a communications system comprising a server and configured for receiving power from the power system and receiving data from or transmitting the data to the power system for download or upload at the electric vehicle charging device, and an authentication module for authenticating the electric vehicle charging device. A method is also disclosed herein. 1. An electric vehicle system comprising:a power system for charging a battery installed in an electric vehicle and comprising a bi-directional power and data connector for receiving power and data from or transmitting the power and data to an electric vehicle charging device;a communications system comprising a server and configured for receiving power from the power system and receiving data from or transmitting the data to the power system for download or upload at the electric vehicle charging device; andan authentication module for authenticating the electric vehicle charging device.2. The electric vehicle system of wherein the bi-directional power and data connector is operable to receive and transmit the power and data together on at least one wire pair.3. The electric vehicle system of wherein the power and data is transmitted using pulse power comprising a plurality of high voltage pulses with safety testing between said high voltage pulses.4. The electric vehicle system of further comprising an electric vehicle motor configured to receive and transmit the power and data.5. The electric vehicle system of further comprising a power converter for converting the power and data to Power over Ethernet for use by electrical components at the electric vehicle.6. The electric vehicle system of further comprising a second ...

SYSTEM AND METHOD FOR SUPPLYING UNINTERRUPTIBLE POWER TO A POE DEVICE FOR A POWER SUPPLY INPUT FOR DIRECT CURRENT POWER

A system and method for supplying uninterruptible power includes a housing, a power supply input for a DC power source, a power source equipment input, a powered device output, an alternative power supply, a control module, and a power source equipment extension. The control module includes a comparator, a switch, a line filter and protector and an injector. The injector includes a regulator and PoE power management module. The alternative power supply includes a plurality of battery packs in series. The system can be located at a remote location with only DC power sources, such as generators, batteries, and solar cells. 1. A system for supplying uninterruptible power , comprising:a housing;a power supply input disposed within said housing, said power supply input having a power source interface on an outside of said housing;a power source equipment input disposed within said housing, said power source equipment input having a power source equipment interface on an outside of said housing;a powered device output disposed within said housing, said powered device output having a powered device interface on an outside of said housing;an alternative power supply disposed within said housing;a powered device connected to said powered device output by an Ethernet cable;power source equipment connected to said power source equipment input, said power source equipment being powered separate from said power supply input and said alternative power supply;a control module connected to said power supply input, said power source equipment input, said powered device output, and said alternative power supply; anda power source equipment extension between said powered device output and said powered device an intervening power source equipment,wherein said control module comprises an injector means, a comparator means, a switch means, and a line filter and protection means,said comparator means detecting power from said power supply input and to said powered device output and ...

Amplifier Circuit and Method for Operating an Amplifier Circuit

An amplifier circuit acting as a line driver in a line between a central station and field devices connected thereto comprising: a DC/DC converter integrated in the circuit as a power stage comprising a DC/pulse converter with two electrically isolated switching stages; a logic block preceding the converter, generating control signals for the switches from a PWM signal and feeding them into the converter in an electrically isolated manner using drivers; a priority block generating the PWM signal; a first and a second controller. The priority block forwards output from the first or second controller. The first controller generates a fault signal based on a voltage limit and an output voltage fed back within the amplifier circuit via a feedback path. The second controller generates a fault signal based on a current limit and the output current. The central station defines the current limit and the voltage limit.

Multipurpose Wall Outlet

A multipurpose wall outlet that provides electrical power via at least one standard electrical socket(s) and at least one USB port as well as providing a wired and wireless internet connection is disclosed. The multipurpose wall outlet has a housing in which is assembled at least one receiver For receiving a signal from a wireless data network, at least one processor for processing the signal from the wireless data network, at least one electrical socket, at least one USB port, at least one ethernet port, and a transmitter for transmitting a wireless data signal. 1. A wall outlet apparatus for mounting in a wall to provide an electrical outlet , the apparatus comprising:a housing having a front side, the housing being arranged so that the front side faces outward from the wall when the wall outlet apparatus is mounted in the wall;a plurality of USB ports accessible from the front side;an power interface connector in electrical communication with the plurality of USB ports, wherein the power interface connector is adapted to electrically couple to a power source; anda electronic processing module comprising a processor, the electronic processing module being located in the housing and electrically coupled to the USB ports and the power interface connector; receive electrical power from the power source, and', 'output electrical power from the USB ports., 'wherein the wall outlet apparatus is adapted, during operation, to2. The apparatus of claim 1 , wherein the electronic processing module further comprises a communications subsystem for communication with a wireless data network.3. The apparatus of claim 1 , wherein the electronic processing module further comprises a card reader interface adapted to read a SIM card.4. The apparatus of claim 1 , wherein the electronic processing module further comprises a memory module.5. The apparatus of claim 1 , wherein the electronic processing module is adapted to convert electrical power received from the power source from a ...

PD IN POE SYSTEM HAVING REDUNDANT PSE CHANNEL INPUTS

A Powered Device (PD) in a PoE system has two input channels, each being coupled to a separate Power Sourcing Equipment (PSE) for increased reliability. A first PD controller is coupled to the first channel to perform hand-shaking and closes a first Power Good (PWRGD) switch when the PoE voltage is detected on the first channel. A second PD controller is coupled to the second channel to perform hand-shaking and closes a second PWRGD switch when the PoE voltage is detected on the second channel. A diode bridge couples both channels to a single regulating power supply that supplies power to a load. Auxiliary switches are controlled by the PWRGD signals so that only the first channel or the second channel is coupled to the diode bridge in the event that both channels receive the respective PoE voltages. Therefore, hot standby is provided using only one power supply. 1. A Power Over Ethernet (PoE) system , the PoE system being configured to deliver operating power to a load in a Powered Device (PD) via data lines , the system comprising: a first PD controller having input terminals coupled to the first wire pair, the first PD controller being configured to perform hand-shaking with a first Power Sourcing Equipment (PSE) coupled to the first channel to identify to the first PSE that a PoE voltage is to be provided on the first channel, the first PD controller having a first Power Good (PWRGD) terminal for issuing a first PWRGD signal upon the PoE voltage being detected on the first channel;', 'a second PD controller having input terminals coupled to the second wire pair, the second PD controller being configured to perform hand-shaking with a second PSE coupled to the second channel to identify to the second PSE that a PoE voltage is to be provided on the second channel, the second PD controller having a second PWRGD terminal for issuing a second PWRGD signal upon the PoE voltage being detected on the second channel;', 'a first PWRGD switch controlled by the first PD ...

METHOD AND APPARATUS FOR LIMITING RACK POWER CONSUMPTION

A method and an apparatus for limiting rack power consumption are provided. The method includes: determining a rack power consumption limitation threshold; determining a current power consumption limitation mode; calculating a total power consumption limit for nodes in a rack; calculating a power consumption threshold for each of the nodes based on the current power consumption limitation mode, the rack power consumption limitation threshold and the total power consumption limit for the nodes in the rack; and transmitting the power consumption threshold for each of the nodes to the node, to enable the node to limit power consumption according to the received power consumption threshold. 1. A method for limiting rack power consumption , comprising:determining a rack power consumption limitation threshold;determining a current power consumption limitation mode;calculating a total power consumption limit for nodes in a rack;calculating a power consumption threshold for each of the nodes based on the current power consumption limitation mode, the rack power consumption limitation threshold and the total power consumption limit for the nodes in the rack; andtransmitting the power consumption threshold for each of the nodes to the node, to enable the node to limit power consumption according to the received power consumption threshold.2. The method according to claim 1 , further comprising:acquiring current switch power consumption, current fan-wall power consumption, and current power conversion efficiency loss power consumption, wherein {'br': None, 'i': p', 'p', '−p', '−p', '−p, 'sub': 0', 'a', 'b', 'c, '=()×98%,'}, 'the total power consumption limit for the nodes in the rack is calculated according to an equation{'sub': 0', 'a', 'b', 'c, 'where p represents the total power consumption limit for the nodes in the rack, prepresents the rack power consumption limitation threshold, prepresents the switch power consumption, prepresents the fan-wall power consumption, and ...

FIBER OPTIC COMMUNICATIONS AND POWER NETWORK

A fiber optic-based communications network includes: a power insertion device, connected to multiple fiber links from a data source, configured to provide power insertion to a hybrid fiber/power cable connected to at least one fiber link of the multiple fiber links; the hybrid fiber/power cable, connecting the power insertion device to a connection interface device, configured to transmit data and power from the power insertion device to the connection interface device; and the connection interface device, configured to provide an interface for connection to an end device via a power over Ethernet (PoE)-compatible connection and to provide optical to electrical media conversion for data transmitted from the power insertion device to an end device via the hybrid fiber/power cable and the PoE-compatible connection.

CONTROLLERS WITH INTEGRATED POWER OVER ETHERNET NETWORK SWITCHES

A system and approach that may provide power to network switches of controllers in a failsafe manner. For instance, when a controller is receiving normal power, the controller may act as a power over Ethernet (POE) source that supplies power to its connected Ethernet devices as required. However, if power to a controller is lost, then Ethernet devices may switch to a powered device mode and use power from a neighboring device to keep active. Some power may be tapped for network switch operation from any network switch port receiving power from another device. This may allow communication to remain operational across multiple devices in a string of which some have lost a source of normal power.

FIBER OPTIC COMMUNICATIONS AND POWER NETWORK

A fiber optic-based communications network includes: a power insertion device, connected to multiple fiber links from a data source, configured to provide power insertion to a hybrid fiber/power cable connected to at least one fiber link of the multiple fiber links; the hybrid fiber/power cable, connecting the power insertion device to a connection interface device, configured to transmit data and power from the power insertion device to the connection interface device; and the connection interface device, configured to provide an interface for connection to an end device via a power over Ethernet (PoE)-compatible connection and to provide optical to electrical media conversion for data transmitted from the power insertion device to an end device via the hybrid fiber/power cable and the PoE-compatible connection.

Overvoltage and Surge Protection in a Power Over Ethernet Device

In some embodiments, powered devices, circuits, and methods are disclosed that may include biasing a hot swap switch to couple a capacitor of a DC-DC converter to negative supply node when an input voltage exceeds a threshold and biasing a telephony switch to couple a positive supply node to a negative supply node when the input voltage exceeds the threshold. Further, the method may further include deactivating the hot swap switch after a period of time, and continuing to bias the telephony switch.

APPARATUS AND SYSTEM FOR AUTOMATICALLY REBOOTING AN ELECTRONICALLY POWERED DEVICE VIA POWER OVER ETHERNET

An apparatus for remotely rebooting an electronic device may have an first port adapted to interface with a first communications line capable of transmitting and receiving both data and power, an second port adapted to interface with a second communications line capable of transmitting and receiving both data and power, at least two status light emitting diodes, and at least one power port capable of receiving power from an external power supply module. The apparatus uses an auto-ping, traffic monitor, and heartbeat methodology to manage the operable state of a PSE, PD, or Ethernet traffic. If either one is deemed to have become non-functional or otherwise fall below set operating standards, the apparatus sends a signal to reboot the particular device in question. This removes the need for a manual reboot of a particular device such as a peripheral device in an electronic system. 1. An apparatus for remotely rebooting at least one electronic device , the apparatus comprising:a first port adapted to interface with a first communications line, the first communications line being capable of transmitting and receiving both data and power;a second port adapted to interface with a second communications line, the second communications line being capable of transmitting and receiving both data and power; 'wherein at least one status light emitting diode corresponds to an operative state of the first port and at least one status light emitting diode corresponds to an operative state of the second port.', 'at least two status light emitting diodes,'}2. The apparatus of further comprising at least one power port capable of receiving power from an external power supply module.3. The apparatus of further comprising at least one securement mechanism that secures a position of the apparatus.4. The apparatus of wherein the first and the second communications line is a Cat 5 claim 1 , 5E claim 1 , or 6 Ethernet cable claim 1 , or a combination thereof.5. The apparatus of further ...

WIRELESS TRANSMISSION DEVICE, WIRELESS RECEPTION DEVICE, WIRELESS TRANSMISSION PROGRAM, WIRELESS RECEPTION PROGRAM, AND WIRELESS COMMUNICATION SYSTEM

There is provided a wireless transmission device in which a lower layer processing unit inserts first random delay before frame transmission in response to a frame transmission request made by an upper layer processing unit, the wireless transmission device including a frame transmitting unit configured to transmit a frame when the frame transmission request is made by the upper layer processing unit, and a frame group transmitting unit configured to transmit a frame group including one or two or more types of frame in accordance with a listening state of a facing wireless reception device when the frame transmission request is made by the upper layer processing unit.

POWER DELIVERY THROUGH AN OPTICAL SYSTEM

In one embodiment, a method includes receiving power delivered over a data fiber cable at an optical transceiver installed at a network communications device and transmitting data and the power from the optical transceiver to the network communications device. The network communications device is powered by the power received from the optical transceiver. An apparatus is also disclosed herein. 1. An optical transceiver comprising:an optical interface for receiving an optical signal on an optical fiber in a cable;an electrical interface for receiving power on an electrical wire in the cable;an optical component for converting the optical signal to an electrical signal; anda power component for detecting and monitoring the power at the optical transceiver, transmitting a message to a central network device delivering the power to indicate that a network communications device is ready to be powered at an increased power level, and providing the power to the network communications device.2. The optical transceiver of claim 1 , wherein the power component is further operable to detect a type of power received.3. The optical transceiver of claim 2 , wherein the type of power comprises Power over Ethernet or pulsed power.4. The optical transceiver of claim 1 , wherein the power component is further operable to select a power delivery mode from Power over Ethernet or pulsed power based on a determination of which of said Power over Ethernet and said pulsed power is a more efficient power delivery method.5. The optical transceiver of claim 1 , wherein the power component is operable to perform a power negotiation with the central network device to select a power delivery mode.6. The optical transceiver of claim 1 , wherein said increased power level comprises delivery of power from the central network device at a power level greater than 100 watts.7. The optical transceiver of claim 1 , wherein the optical fiber comprises a plurality of optical fibers and the electrical wire ...

Bi-Directional Single-Ended Transmission Systems

Systems for bi-directional single-ended transmission are described. For example, a system may include a receiver with a first differential input terminal and a second differential input terminal, wherein the first differential input terminal is coupled to a first node and the second differential input terminal is coupled to a second node; a transmitter with an output terminal coupled to a third node; a first inductor connected between the first node and the third node; a second inductor connected between the second node and the third node; and a shunt resistor connected between the third node and a ground node. Some implementations include a first inductor with an inductance within twenty percent of 1 microhenry and a capacitance less than a tenth of a picofarad is included in a filter coupling a power supply to transmission line. The first inductor may connect to the transmission line. 1. A system comprising:a power-over-coax direct current injector;a coaxial connector;a first inductor with an inductance within twenty percent of 1 microhenry and a capacitance less than a tenth of a picofarad;a second inductor with an inductance within twenty percent of 2.2 microhenry and a capacitance less than a half of a picofarad; anda third inductor with an inductance within twenty percent of 4.7 microhenry and a capacitance less than 2 picofarads, wherein the first inductor, the second inductor and the third inductor are connected in series between the power-over-coax direct current injector and a conductor of the coaxial connector, with the conductor of the coaxial connector connected to first inductor and the power-over-coax direct current injector connected to the third inductor.2. The system of claim 1 , comprising:a transmission line connected to the first inductor, wherein the transmission line includes the conductor of the coaxial connector.3. The system of claim 2 , wherein the transmission line includes a conductor of a coaxial cable.4. The system of claim 2 , wherein ...

Powered device, power sourcing equipment device, power-over-ethernet network system, and mthods therefore

The present invention relates to Power-over-Ethernet (PoE) systems. The invention proposes to use a classification event to communicate from the PD ( 121 ) to the PSE ( 110, 910 ). A sensor ( 310, 410, 510 a, 510 b ) may determine a sensor value, shut down the PoE connection, and reconnect so that the power up cycle with the PSE ( 110, 910 ) will start. The sensor ( 310, 410, 510 a, 510 b ) provides a PoE resistance related to a class 0, 3 where the class relates to the sensor value (e.g., class 0=presence detected; class 1=no presence detected). This procedure may be repeated (e.g. continuously, every minute or whenever the sensor value changes such that the PSE ( 110, 910 ) needs to be informed) and if needed multiple cycles can be used to increase the length of the message communicated.

Device Control Method, Information Storage Medium, Control Apparatus, and Device Control System

A device control method includes: identifying a device contained in device information on a device that was in a controllable mode before, the device being controlled via a network and being allowed to be in the controllable mode and a restriction mode, the controllable mode being a mode in which the device can be controlled by a first type of communication via the network, and the restriction mode being a mode in which a type of communication that can be performed by the device is restricted to a second type of communication to thereby prohibit control of the device by the first type of communication; and switching, by sending by the second type of communication predetermined data that is based on the device information to the identified device, the identified device from the restriction mode to the controllable mode. 1. A device control method comprising:identifying a device contained in device information on a device that was in a controllable mode before, the device being controlled via a network and being allowed to be in the controllable mode and a restriction mode, the controllable mode being a mode in which the device can be controlled by a first type of communication via the network, and the restriction mode being a mode in which a type of communication that can be performed by the device is restricted to a second type of communication to thereby prohibit control of the device by the first type of communication; andswitching, by sending by the second type of communication predetermined data that is based on the device information to the identified device, the identified device from the restriction mode to the controllable mode.2. The device control method according to claim 1 , identifying a device in the controllable mode by sending a predetermined request to each device contained in the device information by the first type of communication and receiving a response sent from the each device by the first type of communication in response to the ...

MODULAR 5G FIXED WIRELESS ACCESS DEVICE

A modular fixed wireless access (FWA) radio dock system is provided that allows docking of a single radio module that can be installed in multiple, different locations by connecting to any one of a plurality of docks and/or communication accessories. The radio module can be paired with different types/configurations of docking stations that include various connectivity ports that provide connectivity to a local network, a wired/wireless router, or other networking equipment. The docking stations can comprise both indoor and outdoor docking stations usable with the same radio module, and may include heat sink assemblies and/or fans that work in conjunction with heat sink assemblies of the radio module, as well as effectuate environmental sealing. 1. A fixed wireless access (FWA) device , comprising: wireless communication circuitry;', 'a universal dock connector; and, 'a radio module, comprisinga first heat sink assembly comprising a first set of heat-dissipating fins; and 'a radio module connector adapted to operatively connect to the universal dock connector providing data transmission and reception between the wireless communication circuitry and an associated communications device; and', 'a dock, comprisinga second heat sink assembly operatively connecting to the first heat sink assembly creating an environmental seal therebetween, the second heat sink assembly comprising a second set of heat-dissipating fins.2. The FWA device of claim 1 , wherein the radio module comprises a 5G modem.3. The FWA device of claim 1 , wherein the dock further comprises at least one connectivity port.4. The FWA device of claim 3 , wherein the at least one connectivity port comprises a Power over Ethernet (PoE) port.5. The FWA device of claim 1 , wherein the universal dock connector comprises an M.2 connector.6. The FWA device of claim 1 , wherein the dock is configured for outdoor installation.7. (canceled)8. The FWA device of claim 1 , further comprising an o-ring to effectuate the ...

EMERGENCY LIGHTING, EVACUATION, AND RESCUE ROUTING WITH POWER OVER-ETHERNET

Systems, apparatus, and methods are disclosed for emergency lighting and evacuation. A building may include several emergency lighting stations in which at least some, if not all, of the lighting station includes a lighting device, a motion sensor, a speaker, a video camera, and a wireless access point. A controller adapter may provide power to and communicate with the lighting stations via Power-over-Ethernet (PoE) connections. A central controller may communicate with the controller adapter to control the emergency lighting stations through the PoE connections. 1. A system for emergency evacuation of a trapped occupant from a building , the system comprising:a plurality of lighting stations, at least two lighting stations of the plurality of lighting stations having a lighting device and at least one sensor;a controller adapter to provide power to, and communicate with, the plurality of lighting stations; and receive data from the at least one sensor of the at least two lighting stations;', 'determine, based on the received data, a location of the trapped occupant;', 'identify, based on the received data, one or more of a plurality of evacuation routes in the building that is unavailable for passage by the trapped occupant;', 'determine, based on the identified one or more evacuation routes that are unavailable for passage and the plurality of evacuation routes, at least one available evacuation route;', 'determine, based on the identified at least one available evacuation route and the determined location of the trapped occupant, an accessible evacuation route for the trapped occupant; and', 'control the lighting of the lighting device of at least one of the plurality of lighting stations to visually identify the accessible evacuation route., 'a central controller in communication with the controller adapter, the central controller configured to2. The system of claim 1 , wherein the central controller includes a web server configured to transmit the accessible ...

METHOD AND SYSTEM FOR MANAGING TELEPHONY SERVICES IN A UNIVERSAL PLUG AND PLAY HOME NETWORK ENVIRONMENT

The present invention provides a method and system for managing telephony services in a Universal Plug and Play (UPnP) home network environment. In one embodiment, a method includes creating one or more profiles associated with at least one Telephony Control Point (TelCP) in an UPnP home network environment, each of the one or more profiles includes one or more service settings associated with telephony services. The method also includes storing the one or more profiles associated with the at least one TelCP in a service settings database. Additionally, the method includes setting one of the one or more profiles as an active profile for the at least one TelCP, and providing telephony services to the at least one TelCP according to the one or more service settings associated with the active profile. 1. A method of a telephony server (TS) for providing telephony services in an Universal Plug and Play (UPnP) home network environment , the method comprising:creating one or more profiles associated with at least one Telephony Control Point (TelCP) in the UPnP home network environment;setting one of the one or more profiles as an active profile for the at least one TelCP; andproviding telephony services to the at least one TelCP according to one or more service settings associated with telephony services included in the active profile.2. The method of claim 1 , wherein creating the one or more profiles associated with the at least one TelCP in the UPnP home network environment comprises:receiving a request for creating a profile from the at least one TelCP, andcreating a profile associated with the at least one TelCP based on the one or more service settings associated with telephony services obtained from the request.3. The method of claim 2 , wherein receiving the request for creating profile from the at least one TelCP comprises:allowing a user of the at least one TelCP to define user preferences via one or more service settings.4. The method of claim 1 , wherein ...

IMAGING DEVICE

An imaging device is capable of interval shooting that allows images to be consecutively captured at predetermined image-capture intervals. The imaging device includes power input unit () through which the imaging device receives power from an external device; battery () configured to be charged with power received via the power input unit, and to supply power to operate the imaging device; and charge controller () configured to control charging of the battery. Charge controller () prohibits, under a predetermined condition, charging of the battery during the interval shooting performed by the imaging device. 1. An imaging device capable of interval shooting that allows images to be consecutively captured at image-capture intervals predetermined beforehand , the imaging device comprising:a power input unit through which the imaging device receives power from an external device connected to the power input unit;a battery configured to be charged with the power received via the power input unit, and to supply power to operate the imaging device; anda charge controller configured to control charging of the battery,wherein the charge controller prohibits, under a predetermined condition, the charging of the battery during the interval shooting performed by the imaging device.2. The imaging device according to claim 1 , wherein when a current one of the image-capture intervals is greater than a first predetermined value claim 1 , the charge controller charges the battery even during the interval shooting performed by the imaging device.3. The imaging device according to claim 1 , wherein when a remaining capacity of the battery is less than a second predetermined value claim 1 , the charge controller charges the battery even during the interval shooting performed by the imaging device.4. The imaging device according to claim 3 , further comprisinga display unit configured to display the remaining capacity of the battery at a plurality of levels in a stepwise manner, ...

SYSTEMS AND METHODS FOR PHYSICAL SECURITY OF INFORMATION FLOWS OVER A POWER CABLE CONNECTION

An aircraft includes a first electrical connector configured to couple with a first power cable, a first data communication network and a first modem coupled to first electrical connector and first data communication network and is configured to transmit data received at first electrical connector through first power cable to first data communication network and to transmit data from first data communication network to first power cable through first electrical connector. The aircraft additionally includes a second electrical connector configured to couple with a second power cable, a second data communication network and a second modem coupled to second electrical connector and to second data communication network and is configured to transmit data received at second electrical connector through second power cable to second data communication network and to transmit data from second data communication network to second power cable through second electrical connector. 1. An aircraft comprising:a first electrical connector configured to couple with a first power cable;a first data communication network;a first modem coupled to said first electrical connector and to said first data communication network, said first modem is configured to transmit data received at said first electrical connector through the first power cable to said first data communication network and to transmit data from said first data communication network to the first power cable through said first electrical connector;a second electrical connector configured to couple with a second power cable;a second data communication network;a second modem coupled to said second electrical connector and to said second data communication network, said second modem is configured to transmit data received at said second electrical connector through the second power cable to said second data communication network and to transmit data from said second data communication network to the second power cable through ...

Technologies for switch link and ply management for variable oversubscription ratios

Technologies for switch link and ply management for variable oversubscription ratios include powering up and down links of one or more network plys according to bandwidth demand, desired oversubscription ratio and/or other parameters. Telemetry data representing one or more network traffic metrics of one or more switch plies is monitored to determine respective power states of the plurality of links associated with the one or more switch plies as a function of a desired oversubscription ratio calculated based on the telemetry data. The respective power state of the plurality of links is set accordingly.

Multi-Level Video Processing Within A Vehicular Communication Network

A system and method for performing vehicle safety processing within a vehicle includes determining whether a driver is present in a vehicle, receiving driver sensed data, processing the driver sensed data to recognize a safety issue. The method continues by determining if the driver sensed data also indicates an externally sensed safety issue. For the driver sensed data without the externally sensed safety issue, the method includes generating one or more control signals to activate a driver awareness measure. For the driver sensed data with an externally sensed safety issue, the method includes activating auto safety precaution measures, determining whether the auto safety measures were successful in avoiding an accident, and, if not, recording the driver sensed data in a one-time programmable (OTP) memory device. 1. A vehicle safety system comprises: determine whether occupants are present in a vehicle;', 'for a driver occupant, receive driver sensed data;', 'process the driver sensed data to recognize a safety issue;', 'determine if the driver sensed data also indicates an externally sensed safetey issue;', 'for the driver sensed data without the externally sensed safety issue, generate one or more control signals to activate a driver awareness measure;', 'for the driver sensed data with an externally sensed safety issue, activate auto safety precaution measures;', 'determine whether the auto safety precaution measures were successful in avoiding an accident; and', 'if not, record the driver sensed data in a one-time programmable (OTP) memory device., 'a vehicle safety processor configured to2. The system of claim 1 , wherein the driver sensed data without the externally sensed safety issue further includes an environmental adjustment for an ambient temperature above or below a desired setting.3. The system of claim 2 , wherein the environmental adjustment for an ambient temperature above or below a desired setting includes an adjustment made to a temperature ...

METHOD AND SYSTEM FOR PROVIDING REMOTE ACCESS TO A STATE OF AN APPLICATION PROGRAM

A method and system for providing remote access to a state of an application is provided. The method comprises executing an application program at a server computer for performing an application associated therewith. At a client computer connected to the server computer via a communication network a remote access program is executed for providing remote access to a state of the performed application. At the client computer a client difference program having encoded data indicative of a change of a state of the application last received from the server computer is generated and transmitted to the server computer. At the server computer the client difference program is executed for determining an updated state of the application and a server difference program having encoded a difference between the updated state of the application and the state of the application last sent to the client computer is generated. The server difference program is then transmitted to the client computer and at the client executed for updating the state of the application last received from the server computer. Display data indicative of the updated state of the application last received from the server computer are generated and displayed in a human comprehensible fashion on a display. 1establishing over a network, a remote connection at the server computing device with a client computing device to enable the remote access to the application program;communicating, over the remote connection, a difference program containing data representing a change in a state of the application made by either execution of the application program or the client computing device, the difference program capturing changes in the state of the application program since the state of the application was last received by the server computing device or the client computing device; andsynchronizing, between the server computing device and the client computing device, the change in the state of the application using ...

DISTRIBUTED ANTENNA SYSTEM USING POWER-OVER-ETHERNET

A system is provided for adjusting power provided over a channel to a device. The system can include power sourcing equipment and a sub-system. The power sourcing equipment can provide power to a powered device via a channel. The sub-system can determine an amount by which to increase the power based on a resistance of the channel. The power sourcing equipment or the powered device can adjust the power (or load) in response to a command from the sub-system. The sub-system can include at least one measurement device and a processor. The measurement device can measure an output voltage of the power sourcing equipment, an input voltage of the powered device, and a current on the channel. The processor can determine the resistance of the channel based on the output voltage, the input voltage, and the current. The processor can output a command specifying an increase or decrease in the level of power supplied by the power sourcing equipment. 1. A system comprising:a powered device configured for receiving power from a power source device via a channel, the powered device comprising a base load and a plurality of optional loads; and determining a resistance of the channel,', 'determining a respective power requirement for each of the plurality of optional loads, and', 'based on the resistance of the channel and the respective power requirements for the plurality of optional loads, configuring the powered device to operate the base load and a subset of optional loads from the plurality of optional loads., 'a sub-system configured for2. The system of claim 1 , wherein the sub-system is at least partially disposed in the powered device and wherein configuring the powered device to operate the base load and the subset of optional loads comprises configuring power control circuitry of the powered device to route the power received via the channel to the base load and the subset of optional loads.3. The system of claim 1 , wherein the sub-system is at least partially disposed ...