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R250D
Hardware Installation and Maintenance Guide
4.1 An 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 01 (2016-09-30)
The power sourcing equipment does not support the PoE function or is faulty.
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 configuration on the power sourcing equipment causes PoE power
supply errors, such as the PoE function is disabled or the power-off time range is
incorrectly set.
Check whether the network cable or distribution frame is faulty.
If the device still cannot be powered on, the device itself is faulty. Contact technical
support personnel or Huawei agent and ask them to replace the device.
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Copyright © Huawei Technologies Co., Ltd.
4 Hardware Failures
20
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