Rs-422 Wiring Diagrams - Digi XTend User Manual

DB-9 RS-485/422
pin name
2 T- (TA)
3 R- (RA)
5 GND
7 R+ (RB)
8 T+ (TB)
9 PWR
1, 4, 6 not used

RS-422 wiring diagrams

The following figure shows the Module Assembly in an RS-485 (4-wire) environment.
The following figure shows the Module Assembly in an RS-422 environment.
XTend RF Module User Guide
Description
Transmit negative data line
Receive negative data line
Signal ground
Receive positive data line
Transmit positive data line
Power
Implementation
Serial data sent from the Module Assembly
Serial data received by the Module Assembly
Ground
Serial data received by the Module Assembly
Serial data sent from the Module Assembly
Optional power input that is connected internally to
the front power connector
RS-422 wiring diagrams
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