Communication Cable

The Communicatin Cable is used with the ​RS232-Adapter that can be mounted piggypack on the Raspberry.

Get the components

• Alternatively, use the Raspberry's GPIO and a RS232-Adapter (e.g ​this one).
  • use a micro usb plug, cut the cable to fit the length, remove the cable coating 3 cm before the open end. Since this cable serves just for power supply, we just use the red (+5V) and the black (GND) cable, cut the remaining two other away
  • cut 3 cables to length, red (12V), black (GND) and a third color (5V)
  • cut the RJ45 cable to length, remove the cable coating 3 cm before the open end, cut away the cables for RJ45-Pin's 2,3
  • connect RJ45-Pin5 (usually blue) with Pin 2 of a Female Sub-D plug
  • connect RJ45-Pin6 (usually white-green) with Pin3 of a Female Sub-D plug
  • connect RJ45-Pin8 with Pin5 of a Female Sub-D plug
  • solder RJ45-Pin's 4,7 with the black cable of the micro USB plug and the other black cable (GND)
  • solder RJ45-Pin1 with the red cable (12V)
  • solder the third coloured cable (5V) with the red cable from the micro usb plug