Huawei SmartAX MA5600T Hardware Description page 314

SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Hardware Description
Working Principle
Figure 3-37 Working principle of the H802P2CA board
Backplane
Control
board
Control
board
-48V
DC
power
The basic working principle of the H802P2CA board is as follows:
l
l
l
l
l
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Issue 24 (2018-07-30)
H802P2CA
Master/
slave
serial
port
Voltage required
by the board
Service
signal
The control module controls the board software loading and board running, and manages
the board.
The electronic switch module implements switching of service signals during the active/
standby switchover.
The PON interface module provides SFP GPON port.
The service process module implements GPON upstream transmission and provides time
synchronization, and supports line clock as the system clock.
The power module supplies power to each functional module of the board.
The clock module provides the working clock for each functional module of the board.
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Electronic
Switch
Module
Control module
Power
module
Clock required
by the board
Control Power
signal signal
User side
PON
Clock
module
Clock
signal
3 Board
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