TP48200A-HT19C3 and TP48200A-HT19C4 Telecom
Power
User Manual
4 Maintenance
Issue 03 (2019-11-15)
Copyright © Huawei Technologies Co., Ltd.
58
Figure 4-4
Installing an SMU
----End
Follow-up Procedure
Pack the removed component and send it to the local Huawei warehouse.
4.4.3 Replacing an AC SPD
Prerequisites
An ESD wrist strap, ESD gloves, ESD box or bag, required tools, and cabinet door key
are available.
The new AC SPD is intact and the indication window is green.
Do not replace an AC SPD during a thunderstorm.
Procedure
Step 1
Connect the ground cable for the ESD wrist strap, and put on the ESD wrist strap and ESD
gloves.
Step 2
Push down on the faulty AC SPD and pull it out, as shown in Figure 4-5.
Step 3
Install the new AC SPD, as shown in Figure 4-5.