Huawei FusionDC1000A - Replacing an Internal Fire Alarm Horn;Strobe

Step 3 Remove the two cables using a Phillips screwdriver.
NO TE
When removing cables, clearly label the cables with its corresponding terminal ports.
Step 4 Install the base of the new re alarm horn/strobe in the same position.
Step 5 Connect cables in the same way to the correct poles.
NO TE
Connect the red cable to the 24V+ terminal, and connect the black cable to the GND terminal.
Step 6 Install the top cover of the re alarm horn/strobe.
Step 7 Switch on the active and standby power supplies to the re alarm control panel,
and check that the new
re alarm horn/strobe is working properly.
NO TE
Unlock the keyboard of the re alarm control panel, and press the HORN/STROBE key to
trigger the re alarm horn/strobe.
----End
Follow-up Procedure
Dispose of the removed
re alarm horn/strobe that is conrmed faulty.
4.4.7 Replacing an Internal Fire Alarm Horn/Strobe
Prerequisites
A spare
re alarm horn/strobe of the same model is available and functional.
Impact on the System
The re extinguishing system stops working during the replacement.
Prerequisites
Tools: Phillips screwdriver, step ladder
Material: spare re alarm horn/strobe
Documents: re extinguishing drawings and parameters
Skill requirement:
re engineer
NO TICE
Before replacing the re alarm horn/strobe, inform the related administration
department of the temporary downtime of the re extinguishing system. After the
replacement, inform the administration department that the system has become
operational.
FusionDC1000A Prefabricated All-in-One Data
Center
Maintenance Guide (IT Scenario) 4 Parts Replacement
Issue 01 (2021-04-20) Copyright © Huawei Technologies Co., Ltd. 128