l The MELT module provides the MELT test function for digital subscriber lines.
The service process is as follows:
l In the upstream direction, the interface module transmits subscriber line signals to the
forwarding module. The forwarding module reorganizes the cell flow into ATM/PTM
packets, encapsulates the ATM/PTM packets into IP packets, and performs CAR on the
IP packets. Controlled by the logical switch, the IP packets are transmitted to the
backplane bus through the backplane interface.
l In the downstream direction, the forwarding module decapsulates the IP packets from the
backplane bus, 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 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.
762
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