Huawei AR-Sc Series

10
CAN interface pin assignments
Eth interface pin assignments
2
1
3
CAN_L
CAN_H
NC
Pin
Signal Type
RS232 interface pin assignments
2
COM1
3
4
RX
TX
NC
5
6
RTS
CTS
2
TX+1
3
4
TX-
RX+
NC
5
6
RX-
7
8
NC
NC
NC
DI/DO interface pin assignments
2
1
3
4
DI+
DI-
DO+
DO-
Pin
Signal Type
Pin
Signal Type
Pin
Signal Type
Connecting the Router to a UPS
The AR-Sc and AR-Se series routers support AR-PM1 UPS power supplies.
The AR-Se-MC, AR-So and AR-Sa series routers support AR-PM4 UPS power supplies.
The routers are connected to a UPS in the same way. The following example connects an
AR-Sc-Lc-BC router to an AR-PM1 UPS.
Note
1
3
1 4
1 6
1 8