Huawei MTS9300A User Manual page 68

MTS9300A Telecom Power (Ooredoo, Indonesia,
MTS9304A-HD2002)
User Manual
Step 2 Switch the BAT– battery circuit breaker on the power system to OFF or remove the
battery fuse.
Step 3 Use the Manual ON/OFF button on the ESM to turn off the battery output.
Step 4 Disconnect the cables from the old ESM. Insulate each cable and label it
immediately after disconnecting it.
Step 5 Loosen the screws on the panel and remove the ESM.
----End
Installing the New ESM
Step 1 Install the new ESM and tighten the screws.
Step 2 Hold down the Manual ON/OFF button for 15s for the ESM to enter the
maintenance mode. In this mode, all indicators blink, the ESM board is activated,
but the ESM will not be charged or discharged.
Step 3 Connect the cables to the new ESM based on the cable labels.
Step 4 Switch the BAT– battery circuit breaker in the power system to ON or reinstall the
battery fuse using a fuse extracting unit.
Step 5 Hold down the Manual ON/OFF button for 15s for the ESM to exit the
maintenance mode. The ESM is automatically activated and connects to the power
system.
Step 6 Remove the protective gloves and pack up all tools.
----End
Follow-up Operations
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Issue 06 (2021-10-13)
Put the removed component into the ESD box or bag and then place the ESD
box or bag into the carton box with foams or the bag of the new component.
Fill in the fault card with the information about the removed component.
Contact your local Huawei office to handle the faulty component.
Copyright © Huawei Technologies Co., Ltd.
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