Huawei SmartAX MA5600T Hardware Description page 364

SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Hardware Description
Figure 3-54 Working principle of the H801ETHA board
Backplane
Control
board
-48V DC
power
The basic working principle of the H801ETHA board is as follows:
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The service processing is as follows:
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Issue 24 (2018-07-30)
H801ETHA
10GE/GE
Service
signal
The control module loads board software, manages and controls board running, and
reads information such as slot ID, version number, and board type.
The interface module includes the daughter board connector and provides eight GE
ports.
The switching module completes line rate switching for Ethernet packets.
The power module supplies power to other functional modules of the board.
The clock module provides working clock for functional modules on the board.
In the downstream direction, the control board sends service data through the backplane
connector to the switching module for line-rate switching of the Ethernet packets. The
daughter board then implements service cascading.
In the upstream direction, service data is sent to the switching module through the
daughter board, and then to the control board through the backplane.
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Switching Interface
module
Control module
Power Clock
module module
Voltage Clock
required by required by
the board the board
Control Power
signal signal
User side
8*GE
Cascading
module
device
Clock
signal
3 Board
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