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MA5600T, MA5603T, and MA5608T Hardware Description 25

This manual describes the Huawei MA5600T, MA5603T, and MA5608T hardware specifications, such as dimensions, weight, power consumption, capacity, structure, chassis, slots, boards, power modules, and optical modules.
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H801PRTE Board Description

H801PRTE Board Description

The H801PRTE is a connect power board. It leads in the -48 V or -60 V DC power supply for the device.

Functional Specifications

The H801PRTE board supports the following functions:

  • One -48 V or -60 V DC power input (input voltage range: -38.4 V to -72 V)
  • Filtering and current-limiting for the power input port
  • Under-voltage detection, detection of whether the input power exists, and fault detection
  • Combined reporting of the protection alarm and board online signal
  • ALARM indicator

Technical Specifications

Please refer to "Power Consumption and Maximum Frame Size of Boards".

Working Principle

Figure 3-45  Working principle of the H801PRTE board

The basic working principle of the H801PRTE board is as follows:
  • The H801PRTE board has a 3V3 power connector to lead a channel of -48 V or -60 V power supply. After passing the protection circuit and the filtering circuit, the power supply is output to the backplane and supplies power for other boards in the subrack.
  • The detection and report circuit detects fault of the protection fuse. The detected signals and the presence signals of the board are reported to the control board through the same channel. The LED displays the status.
  • The detection and report circuit detects under-voltage of the input power and whether there is input power.
  • The E2PROM circuit stores the vendor information of the board.
  • The 5 V power led from the backplane is used to supply some chips of the board.

Front Panel Port








Indicator of the protection circuit



The protection circuit is normal



The protection circuit is faulty

Updated: 2019-03-18

Document ID: EDOC1000060621

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