Huawei FusionModule1000A40 Maintenance Manual page 111

FusionModule1000A40 Prefabricated All-in-One
Data Center
Maintenance Guide
Before replacing the fire alarm sounder, inform the related administration
department of the temporary downtime of the fire extinguishing system. After the
replacement, inform the administration department that the system has become
operational.
Procedure
Step 1 Switch off the active and standby power supplies to the fire alarm control panel.
Step 2 Push the fire alarm sounder out of the base.
Figure 5-44 Removing the fire alarm sounder
Step 3 Cut off the power cable of the fire alarm sounder, as shown in
Figure 5-45 Cutting off the power cable
Step 4 Connect the input wires with the two wires (polarity insensitive) of the spare fire
alarm sounder and wrap the connection points using insulation tape.
Cord end terminals are recommended if applicable.
Issue 04 (2021-02-10)
NO TICE
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Copyright © Huawei Technologies Co., Ltd.
5 Parts Replacement
Figure 5-45.
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