NPort IA5150A/IA5250A Series
Pinouts and Cable Wiring
A-2
Port Pinout Diagrams
Ethernet Port Pinouts
Pin
Signal
1
Tx+
2
Tx-
3
Rx+
6
Rx-
RS-232/422/485 (male DB9) Pinouts
Pin
RS-232
RS-422, 4-wire
RS-485
2-wire RS-485
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
–
–
–
Note: The NPort IA5150A Series’s DB9 ports only support RS-232 signals.
RS-422/485 (5-contact terminal block) Pinouts for the NPort
IA5150A Series
Pin 2-wire RS-485
RS-422, 4-wire RS-485
1
–
TxD+(B)
2
–
TxD-(A)
3
Data+(B)
RxD+(B)
4
Data-(A)
RxD-(A)
5
GND
GND
Power Input and Relay Output Pinouts
PWR1
PWR2
RELAY
Shielded Ground
DC Power Input
DC Power Input
Normal Open/Close, Relay output