TP48200A-DX08A1 and TP48200A-DX08A2 Telecom
Power
User Manual
4 Maintenance
Issue 06 (2019-11-15)
Copyright © Huawei Technologies Co., Ltd.
50
4.4.5 Replacing an AC SPD Module
Prerequisites
An ESD wrist strap, ESD gloves, ESD box or bag, and cabinet door key are available.
The new AC SPD module is intact and has the same specifications as the AC SPD
module to be replaced.
Do not replace an AC SPD module during a thunderstorm.
Procedure
Step 1
Connect the ground cable of the ESD wrist strap, and wear the ESD wrist strap and ESD
gloves.
Step 2
Press the top and bottom of the faulty AC SPD module and pull it out, as shown in Figure
4-10.
Step 3
Install the new AC SPD module, as shown in Figure 4-10.
Figure 4-10
Replacing an AC SPD module
Step 4
Disconnect the ground cable of the ESD wrist strap, and remove the ESD wrist strap and ESD
gloves.
----End
Follow-up Procedure
Check that the alarm for the AC SPD is cleared.