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CP-134U (2-wire RS-485)
Port 1 Port 2 Port 3 Port 4
13 Data+(B) 9 Data+(B) 5 Data+(B)
1Data+(B)
29 Data-(A) 25 Data-(A) 21 Data-(A)
17 Data-(A)
Individual Port Pinouts
In this subsection we give the pinouts for individual ports. Refer to the DB9 pinout
diagrams if you are using the Model M44M9x4 cable, and refer to the DB25 pinout
diagrams if you are using the Model M44M25x4 cable.
RS-232
DB9 DB25
Pin No. Signal Pin No. Signal
1 DCD 2 TxD
2 RxD 3 RxD
3 TxD 4 RTS
4 DTR 5 CTS
5 GND 6 DSR
6 DSR 7 GND
7 RTS 8 DCD
8 CTS 20 DTR
Industio CP-134U Series User’s Manual
5-4