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TP48200A-DT19D1 Telecom Power User Manual

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Identifying SMU Faults

Identifying SMU Faults

The following indicate that the SMU is faulty:

  • The DC output is normal but the green indicator on the SMU is off.
  • The SMU breaks down or cannot be started. Its LCD has abnormal display or buttons cannot be operated.
  • With alarm reporting enabled, the SMU does not report alarms when the power system is faulty.
  • The SMU reports an alarm when the power system is not faulty.
  • The SMU fails to communicate with the connected lower-level devices even though the communications cables are correctly connected.
  • Communication between the SMU and all rectifiers fails even though the rectifiers and the communications cables are normal.
  • The SMU cannot monitor AC or DC power distribution when communications cables are intact and AC and DC power distribution is normal.
  • Parameters cannot be set or running information cannot be viewed on the SMU.
Updated: 2019-11-27

Document ID: EDOC1000078784

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