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NPort IA5150/5250 Series User’s Manual Pinouts and Cable Wiring
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Port Pinout Diagrams
RS-232/422/485 (male DB9) Pinouts
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PIN RS-232
RS-422/
RS-485 (4W)
RS-485 (2W)
1 DCD TxD-(A) ---
2 RXD TxD+(B) ---
3 TXD RxD+(B) Data+(B)
4 DTR RxD-(A) Data-(A)
5 GND GND GND
6 DSR --- ---
7 RTS --- ---
8 CTS --- ---
9 --- --- ---
4W/2W RS-485/RS-422 (Terminal Block) Pinouts
PIN
RS-422/
RS-485 (4W)
RS-485 (2W)
1 TxD+(B) ---
2 TxD-(A) ---
3 RxD+(B) Data+(B)
4 RxD-(A) Data-(A)
1 2 3 4 5
5 GND GND
Power Input and Relay Output Pinouts
V1
V1+
V2
V2+
1
V2+ V2-
V1+ V1-
Shielded
Ground
DC Power
input 1
DC Power
input 1
Relay
output
Relay
output
DC Power
input 2
DC Power
input 2