Replacing An Esm - Huawei MTS9300A User Manual

MTS9300A Telecom Power (Ooredoo, Indonesia,
MTS9304A-HD2002)
User Manual
Figure 4-15 Installing a new light
Step 4 Connect the light power cable.
----End
Follow-up Procedure
Pack the removed component and send it to the local Huawei warehouse.

4.3.10 Replacing an ESM

Prerequisites
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Context
ESM replacement may cause a system power failure. To prevent power failures,
ensure that other power sources, such as the mains, diesel generator, or a third-
party DC power source, provide continuous power supply.
Replacement Requirements
Conditions for the ESM to enter and exit the maintenance mode:
1.
2.
Before replacing an ESM in an actual maintenance scenario, hold down the
Manual ON/OFF button for the ESM to power off. After the ESM is replaced, hold
down the Manual ON/OFF button for at least 15s on the new ESM to exit the
maintenance mode.
Removing the Old ESM
Step 1 Wear the protective gloves.
Issue 06 (2021-10-13)
The protective gloves, Phillips screwdriver and socket wrench are available.
You have confirmed the model of the ESM to be replaced and prepared a new
ESM.
You are authorized to enter the site with the key.
Hold down the Manual ON/OFF button for at least 15s to enter the
maintenance mode.
In the maintenance mode, hold down the Manual ON/OFF button for at least
15s to exit the maintenance mode.
Copyright © Huawei Technologies Co., Ltd.
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