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FusionModule1000A20 Prefabricated All-in-One Data
Center
Maintenance Guide
4 Parts Replacement
Issue 01 (2019-07-15)
Copyright © Huawei Technologies Co., Ltd.
37
Step 2
Replace the indicator if no voltage is detected by using a multimeter.
Step 3
Loosen the screw at the rear of the indicator and remove the conducting wire.
Figure 4-7
Removing an indicator
When removing cables, label the cables with corresponding terminal ports for later connection.
Step 4
Remove the retaining ring from the indicator and remove the indicator from the mounting
hole.
Step 5
Install a new indicator on the mounting hole, secure the retaining ring, reconnect the
conducting wire, and switch on the MCB.
----End
Follow-up Procedure
Dispose of the removed indicator that is confirmed faulty.
4.1.3 Replacing a Battery for the DC Power System
Prerequisites
A spare battery of the same model is available and functional.
Impact on the System
None
Preparations
Tools: pallet truck, wrench, protective gloves
Materials: insulation tape, spare battery, copper bar or cable
Documents: documents delivered with the DC power system battery, power supply and
distribution system diagram, power supply and distribution device layout