Huawei SmartAX MA5600T Hardware Description page 370

SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Hardware Description
The basic working principle of the H801ETHB board is as follows:
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The service process is as follows:
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Issue 24 (2018-07-30)
The control module loads the board software, manages and controls the running of the
board, and reads the slot ID, version and type of the board.
The interface module provides eight GE ports.
The switching module implements the load sharing and the redundancy protection
through the inter-board aggregation.
The power module supplies power to each functional module of the board.
The clock module provides clock signals for each functional module of the board.
In the upstream direction, service data is transmitted from the control board to the
switching module through the backplane connector. The switching module performs the
line rate switching of the Ethernet packets and supports service cascading and upstream
transmission.
In the downstream direction, service data is transmitted to the switching module through
the daughter board and then to the control board through the backplane.
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