Huawei MTS9300A - 4.1.6 Cables

No. Maintenance Item Possible Fault Cause Suggestion
4 Check whether the
displayed total load current
is the same as the actual
current measured by a
clamp meter.
● Battery current detection
fault.
● The SMU is faulty.
1. Check that the current
monitoring cable is
securely connected.
2. Replace the SMU.
5 Check whether the
displayed battery charge
current is the same as the
actual current measured by
a clamp meter.
● The current monitoring
cable is loose.
● The SMU is faulty.
1. Check that the current
monitoring cable is
securely connected.
2. Replace the SMU.
6 Check whether the
dierence between the
displayed DC output
voltage and the measured
DC busbar voltage is less
than 0.5 V DC.
● The cabinet busbar and
cables are loose or in
poor contact.
● The SMU is faulty.
1. Check and secure the
cabinet busbar and cable
connections.
2. Replace the SMU.
4.1.6 Cables
Table 4-6 Cable maintenance
No.
Maintenance Item If... Then...
1 Check whether signal
cables and power
cables are separately
bound.
Cables are not
properly installed.
Bind signal cables and
power cables
separately.
2 Check whether all
cables are bound
properly.
Cables are not
properly installed.
Bind cables properly.
3 Check whether the
cabinet ground bar is
securely connected to
the site or equipment
room ground point.
Cables are not
properly installed.
Connect the cabinet
ground bar to the site
or equipment room
ground point.
4 Check whether ground
cables are rusty.
Cables corrode after
being used for a long
time.
Replace rusty cables.
5 Check whether the DC
RTN+ busbar is
grounded.
The DC RTN+ busbar
is not properly
grounded.
Connect the ground
cable to the DC RTN+
busbar properly.
MTS9300A Telecom Power (Ooredoo, Indonesia,
MTS9304A-HD2002)
User Manual 4 Maintenance
Issue 06 (2021-10-13) Copyright © Huawei Technologies Co., Ltd. 47