Huawei SMU11B - Wiring Terminals

Wiring Terminals
Figure 1-2 Wiring terminals
Table 1-2 Pin denitions for SIG1 wiring terminals
Pin Signal Description
1 DI1+ Dry contact input
6 DI1-
2 IO1+ Dry contact input/Dry contact
output (When used as a dry
contact input, the alarm
condition is as follows: normal
when open, alarm when
closed. When used as a dry
contact output, the alarm
action is as follows: open when
normal, closed when alarm.)
3 IO1-
4 IO2+
5 IO2-
7 DI4+ Dry contact input
8 DI4-
9 DI5+
10 DI5-
Table 1-3 Pin denitions for SIG2 wiring terminals
Pin
Signal Description
1 VD1 Battery midpoint voltage
detection port 1
6 VD2 Battery midpoint voltage
detection port 2
SMU11B Site Monitoring Unit
User Manual 1 Description of Components
Issue 03 (2022-06-06) Copyright © Huawei Technologies Co., Ltd. 3