Manual for ETP4830-A1

Manual for ETP4830-A1

Brand: HUAWEI

Category: Other

Document Type: Manual

Language: EN

Uploaded: Nov. 21, 2025, 7:48 p.m.

Manual Publish Date: 2017-08-08

Warranty Information

This manual does not contain specific warranty details.

This document provides information on the ETP4830-A1 embedded power system. It covers product overview, components, installation, commissioning, and maintenance. The system is a box-type power system for -48 V DC communications equipment, utilizing 15 A rectifiers to provide a maximum output current of 30 A. Key features include wide voltage range support, comprehensive battery management, hot-swappable components, and flexible networking capabilities via SMU01A and SMU01B. The manual details safety precautions, component descriptions, configuration settings, troubleshooting, and technical specifications.

Troubleshooting and error codes

Symptom Possible Cause Corrective Measures
The Run indicator (green) is off. There is no AC input, or the rectifier is faulty. Check whether the AC input is normal. If the AC input is normal, replace the rectifier. If the AC input is normal and the green indicators on all rectifiers are off, replace the AC/DC power distribution subrack.
The Run indicator (green) is blinking (0.5 Hz). The rectifier is being queried manually. Exit the query status. The Run indicator becomes steady on again.
The Run indicator (green) is blinking (4 Hz). Software is being loaded. After software finishes loading, the indicator will stop blinking, without any user action required.
The Alarm indicator (yellow) is steady on.
  • The rectifier is protecting itself against overtemperature.
  • The rectifier is protecting itself against AC input overvoltage or undervoltage.
  • The rectifier is faulty.
  • If the ambient temperature is higher than the upper threshold, lower the ambient temperature.
  • If the air intake or exhaust vent is blocked, remove the blockage.
  • If the AC input is abnormal, ask maintenance personnel for the mains supply to rectify the fault.
The Alarm indicator (yellow) is blinking. Communication between the rectifier and the SMU is interrupted. Clean the edge connector of the faulty rectifier. If the Alarm indicator is still blinking, check the SMU and the AC/DC power distribution subrack.
The Fault indicator (red) is steady on.
  • The rectifier is protecting itself against output overvoltage.
The rectifier has no output due to an internal fault.
  • If a single rectifier is locked, remove the rectifier that is indicating the fault, and then power on the rectifier after the indicator turns off. If overvoltage still occurs, replace the rectifier.
  • If multiple rectifiers are locked, remove all rectifiers and reinstall them one by one to locate the faulty rectifiers. Replace the faulty rectifiers.
Replace the faulty rectifier.
The Run indicator (green) is off. There is no input.
  • Check whether the green indicators on rectifiers are steady on. If so, the input to the power subrack is normal.
  • Reseat the SMU. If the fault persists, replace the SMU.
The Run indicator (green) is blinking fast. The SMU has failed to communicate with the host. Check whether communication between the SMU and the host is normal.
The Alarm indicator (red) is steady on. A major or critical alarm has been generated. Query the active alarm on the host or SMU LCD to identify the fault.
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