2-4. Interface Connections
2/99 2-23 U3-1021
Westinghouse Proprietary Class 2C
Figure 2-13. Generic RS-485/RS-422 LC Cabling Scheme
9-Pin Female J2 Applications Port
D Connector at G02
Other Device
Personality Module
RXD- 1
RXD+ 2
GND 5
Signal
Name
Pin
Number
Signal
Name
TXD-
TXD+
GND
RTS-
RTS+
CTs+
1. Use loopbacks only if needed by device.
Notes
TXD+ 3
RXD+
TXD- 4
RXD-
CTs-
2. Many RS-485/RS-422 devices have no ground connection.
In this case, leave GND pins disconnected.
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