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TP48200A-HT15D3 Telecom Power (Russia, Megafon)
User Manual
4 Maintenance
Issue 03 (2019-11-15)
Copyright © Huawei Technologies Co., Ltd.
73
4.4.12 Replacing a Smoke Sensor
Prerequisites
An ESD wrist strap, ESD gloves, ESD box or bag, cabinet door key, and required tools
are available.
The new smoke sensor is intact.
Procedure
Step 1
Connect the ground cable of the ESD wrist strap, and wear the ESD wrist strap and ESD
gloves.
Step 2
Remove the smoke sensor, as shown in Figure 4-22.
1.
Remove the connected cables from the smoke sensor.
2.
Hold down the button on the smoke sensor and push the smoke sensor in the OPEN
direction.
3.
Unscrew the smoke sensor base.
There are two types of smoke sensors, and both can be replaced in the same manner.