User Manual

- 5 -
The MGate MB3170/3270 also supports login via a web browser.
Default IP address: 192.168.127.254
Default account: admin
Default password: moxa
Pin Assignments
Ethernet Port (RJ45)
Pin
Signal
1
Tx+
2
Tx-
3
Rx+
6
Rx-
Serial Port (DB9 Male)
Pin RS-232
RS-422/
RS-485 (4W)
RS-485 (2W)
1
DCD
TxD-
–
2
RxD
TxD+
–
3
TxD
RxD+
Data+
4
DTR
RxD-
Data-
5
GND
GND
GND
6
DSR
–
–
7
RTS
–
–
8
CTS
–
–
9
–
–
–
NOTE
For the MB3170 Series, the DB9 male port can only be used for
RS-232.
Terminal Block Female Connector on the MGate (RS-422, RS-485)
Pin
RS-422/
RS-485 (4W)
RS-485 (2W)
1
TxD+
–
2
TxD-
–
3
RxD+
Data+
4
RxD-
Data-
5
GND
GND
Power Input and Relay Output Pinouts
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