Huawei SmartAX MA5600T Hardware Description page 333

SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Hardware Description
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Technical Specifications
Please refer to
Working Principle
Figure 3-45 Working principle of the H801PRTE board
The basic working principle of the H801PRTE board is as follows:
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Issue 24 (2018-07-30)
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
"Power Consumption and Maximum Frame Size of
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.
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3 Board
Boards".
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