Huawei FusionModule1000A20 Maintenance Manual page 118

FusionModule1000A20 CT Solution
Maintenance Guide
Figure 5-39 Removing the horn strobe cover
Step 3 Remove cables from the horn strobe.

While removing cables, label the cables with its corresponding terminal ports for later
connection.

As a terminal resistor is connected to the last horn strobe in the loop in parallel, remove
the terminal resistor from the faulty horn strobe, and connect the resistor to the new horn
strobe when you replace the horn strobe.
Figure 5-40 Removing cables from the horn strobe
Step 4 Remove screws from the horn strobe base using a Phillips screwdriver, and remove the base.
Step 5 Install the new horn strobe in the same way, connect the cables, and install the cover.
Step 6 Switch on the input circuit breaker of the extinguishant control panel, and connect the battery
cables.
Step 7 Check that the new horn strobe is working properly.
Issue 01 (2019-02-25) Copyright © Huawei Technologies Co., Ltd.
5 Parts Replacement
111