packets. The IP packets are transmitted to the backplane bus through the backplane port
and then to the control board. After being processed by the control board, the IP packets
are transmitted upstream to the upper level device through the optical or electrical port.
l In the downstream direction, the forwarding logic decapsulates the IP packets from the
backplane, performs CAR on the IP packets, reorganizes the IP packets into ATM/PTM
packets, and transmits the ATM/PTM packets to the interface module. The interface
module converts the ATM/PTM packets into analog signals and then transmits the
signals to subscriber lines.
SmartAX MA5600T/MA5603T/MA5608T Multi-service
Access Module
Hardware Description
3 Board
Issue 24 (2018-07-30) Huawei Proprietary and Confidential
Copyright © Huawei Technologies Co., Ltd.
654
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