Huawei SmartAX MA5600T Hardware Description page 438

SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Hardware Description
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Issue 24 (2018-07-30)
processing module performs conversion from ATM to IP, that is, encapsulates ATM
packets into MAC frames. Then, the backplane connector transmits the MAC frames to
the control board. After the control board processes the MAC frames, the frames are
transmitted to the upper level device through the optical or electrical port.
In the downstream direction, the processing module converts the IP packets from the
backplane into ATM cells and then transmits the ATM cells to the interface module. The
interface module performs ATM switching and then transmits the ATM cells to the ATM
network through the daughter board.
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