Worth Data 701 RF manual Relay Station RS422 Pin-outs, Relay Test Plan and Failures, Relay Failure

Incorrect Routing for Wiring

Relay Station RS422 Pin-outs

The R/F Relay Stations are connected by twisted pair wire -- use Belden 1227A1, Cat 5 wire, or equivalent. The Unlabeled Port on the Base Station and the Unlabeled Port on the Relay Station are

connected with a straight cable using the following pin-outs:

Base Connector	Pin #	Relay Connector
Receive Data +	5	Transmit Data +
Receive Data -	6	Transmit Data -
Transmit Data +	2	Receive Data +
Transmit Data -	3	Receive Data -

Make a cable with 5-5, 6-6, 2-2, and 3-3 (a straight cable); but, be careful that you select wires so that the 2 wire is in the twisted pair with the 3 wire, and the 5 wire is in the twisted pair with the 6 wire.

For all RJ Cable pin numbers, number from left to right with the metal pin side of the connector facing you and the cable running to the down position

Relay Test Plan and Failures

Relay Failure

Relay Station failures are often cable-related. If a Terminal puts out a “Who Can Hear Me?” message and a Relay that is for some reason not connected to the Base Station (bad cable, cut cable, broken connectors)

B-3