Huawei SmartAX MA5600T Hardware Description page 335

Multiservice access module

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SmartAX MA5600T/MA5603T/MA5608T Multi-service

Access Module

Hardware Description

Working Principle

Figure 3-46 Working principle of the H801PRTG board

The PRTA board leads in -48 V or -60 V power supply through the 3V3 power port on its

front panel, and then transmits the -48 V or -60 V power supply through its filter circuit to the

backplane for supplying power to other boards in the service subrack.

Issue 24 (2018-07-30)

Huawei Proprietary and Confidential

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Smartax ma5603t Smartax ma5608t