EIA-422 Software Handshaking (XON/XOFF) Cable

Use the chart below as a guide for EIA-422 wiring. Pin numbers have been omitted because they vary from product to product. For Digi pin numbers, see Digi EIA-422 Connector Wiring. For peripheral device pin numbers, see the documentation for your peripheral device.

DTE (Digi End)   DTE (Peripheral)
Signal Lead Lead Signal

TxD

+

Connected to

+

RxD

-

Connected to

-

RxD

+

Connected to

+

TxD

-

Connected to

-

GND

  Connected to  

GND

RTS

Jumpered, connect:
RTS to CTS
  Jumpered, connect:
RTS to CTS

RTS

CTS

CTS