Connector cable to link PC to sewing machine - has logic level converter in 25 pin end connector, and TTL inputs on DIN plug at other cable end, to interface sewing machine
Номер патента: DE4135471A1
Опубликовано: 29-04-1993
Автор(ы): Joachim Hammermann
Принадлежит: GM Pfaff AG
Опубликовано: 29-04-1993
Автор(ы): Joachim Hammermann
Принадлежит: GM Pfaff AG
Реферат: The connector cable has a 25 pin connector at one end which plugs into an RS232 interface of a PC, and a DIN plug with TTL outputs at the other. A logic level converter is mounted on a PCB in the 25 pin connector to match the respective logic levels of the PC and sewing machine. The converter includes two switching transistors (16,23) for the transmit lines (7,10) of the RS232 interface and the DIN connector respectively. Data transmission is carried out serially with a start bit, 8 data bits, and a stop bit. The start bit is always a logic level zero. ADVANTAGE - Simple design with few components, sewing machine does not require additional logic level adjusters.
Sewing machine and method for controlling sewing machine
Номер патента: US20240295056A1. Автор: Kentaro AKAHANE. Владелец: Janome Corp. Дата публикации: 2024-09-05.