Hardware Failures; A Device Fails To Be Powered On - Huawei AP8082DN Hardware Installation And Maintenance Manual

AP8082DN and AP8182DN
Hardware Installation and Maintenance Guide
About This Chapter
This section describes common methods for troubleshooting typical hardware faults.

4.1 A device Fails to Be Powered On

4.2 An Optical Interface Cannot Turn Up
4.1 A device Fails to Be Powered On
Fault Description
The SYS indicator of a device is off.
Possible Causes
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Troubleshooting Procedure
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Issue 03 (2019-04-01)
The power sourcing equipment does not support the PoE function or is faulty.
The power sourcing equipment does not support the required power supply mode.
The power sourcing equipment does not provide sufficient power.
The power sourcing equipment is incorrectly configured (the PoE function is disabled or
the power-off time range is improperly set).
The line is faulty (the network cable or distribution frame is damaged).
The device is faulty.
Check whether the power sourcing equipment supports PoE or is faulty.
Check whether the power output mode of the power sourcing equipment is supported by
the powered device.
Check whether the peer switch is grounded. If not, ground it properly.
Check whether the power sourcing equipment can support the maximum power
consumption of the device.
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Hardware Failures

4 Hardware Failures
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