Wiring Terminals
Figure 1-2 Wiring terminals
Table 1-2 Pin definitions 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 definitions 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.
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