Terminal
Pin
Signal
Description
3
GND
Grounding (PE)
4
–
–
Figure 1-9 ALM and SMOKE pins
Table 1-12 ALM and SMOKE pin definitions
Terminal
Pin
Signal
Description
ALM5–ALM10
1
ALM+
Dry contact
2
ALM-
Dry contact
output -
SMOKE
1
SMOKE
Smoke sensor
signal input
2
12 V
12 V output
Figure 1-10 J7 pins
Table 1-13 J7 pin definitions
Terminal
Pin
Signal
Description
J7
1
12 V
12 V output
2
GND
Grounding (PE)
3
–
–
SMU11B Site Monitoring Unit
User Manual
1 Description of Components
Issue 03 (2022-06-06)
Copyright © Huawei Technologies Co., Ltd.
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