User`s manual

MGate MB3000 User’s Manual Pin Assignments
10-3
Terminal Block (RS-422, RS-485)
The MB3170 and MB3170I have a terminal block connector for RS-422 and RS-485 signals.
Pin
RS-422
RS-485 (4W)
RS-485 (2W)
1 TxD+ ---
2 TxD- ---
3 RxD+ Data+
4 RxD- Data-
5 GND GND
Power Input, Relay Output
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