TP48200A-HX09A1 and TBC300A-DCA5 Telecom
Power
User Manual
4 Maintenance
Issue 03 (2019-11-15)
Copyright © Huawei Technologies Co., Ltd.
77
4.4.16 Replacing a Water Sensor
Prerequisites
You have obtained an ESD wrist strap, a pair of ESD gloves, an ESD box or bag, the
cabinet door key, and a maintenance tool kit.
The new water sensor is intact.
Procedure
Step 1
Connect the ground cable to the ESD wrist strap, and put on the ESD wrist strap and ESD
gloves.
Step 2
Remove the water sensor cable from the UIM, as shown in Figure 4-29.
Figure 4-29
Removing the water sensor cable
Step 3
Cut off the cable tie of the water sensor and remove the water sensor.