RS422-dat

Wiring

  • Y = TXD+ — B = RXD+
  • Z = TXD- — A = RXD-
  • B = RXD+ — Y = TXD+
  • A = RXD- — Z = TXD- or
  • A - Y
  • B - Z
  • Y - A
  • Z - B

Definitions

  • Y = TXD+
  • Z = TXD-
  • A = RXD-
  • B = RXD+

https://en.wikipedia.org/wiki/RS-422 https://www.omega.com/en-us/resources/rs422-rs485-rs232