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Connection Cables and Cable Wiring
Cable Wiring—DB9
RS-422 Point-to-point RS-422 Broadcasting
CP-134U RS-422 Device CP-134U RS-422 Device 1
2 TxD+(B) RxD+(B) 2 TxD+(B) RxD+(B)
1 TxD-(A) RxD-(A) 3 RxD+(B) TxD+(B)
3 RxD+(B) TxD+(B) 1 TxD-(A) RxD-(A)
4 RxD-(A) TxD-(A) 4 RxD-(A) TxD-(A)
5 GND GND 5 GND GND
RS-422 Device N
RxD+(B)
TxD+(B)
RxD-(A)
TxD-(A)
GND
CP-134U – RS-422 with Handshaking
CP-134U RS-422 Device
2 TxD+(B) RxD+(B)
1 TxD-(A) RxD-(A)
3 RxD+(B) TxD+(B)
4 RxD-(A) TxD-(A)
5 GND GND
7 RTS+(B) CTS+(B)
6 RTS-(A) CTS-(A)
8 CTS+(B) RTS+(B)
9 CTS-(A) RTS-(A)
CP-134U – 2-wire RS-485
CP-134U RS-485 Device
3 Data+(B) Data+(B)
4 Data-(A) Data-(A)
5 GND GND
Industio CP-134U Series User’s Manual
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