User Manual

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NOTE
For the NPort with DB Male serial ports, you may refer to DB9
Male Ports pin assignment section to loop back pin 2 and pin 3
for the RS-232 interface to carry out a self test on the device.
Pin Assignments
Ethernet Port Pinouts
Pin No.
Ethernet
1
Tx+
2
Tx-
3
Rx+
6
Rx-
NPort 5110A—DB9 male (RS-232) port pinouts
Pin No.
RS-232
1
DCD
2
RxD
3
TxD
4
DTR
5
GND
6
DSR
7
RTS
8
CTS
9
–
NPort 5130A—DB9 male (RS-422/485) port pinouts
Pin No.
RS-422/485-
4W
RS-485-2W
1
TXD-(A)
–
2
TXD+(B)
–
3
RXD+(B)
Data+(B)
4
RXD-(A)
Data-(A)
5
GND
GND
6
–
–
7
–
–
8
–
–
9
–
–
NPort 5150A—DB9 male (RS-232/422/485) port pinouts
Pin No.
RS-232
RS-422/485-
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
–
–
–