Megaplex-4 equipped with the MPW-1 module provides legacy services over packet-switched networks (PSN). MPW-1 receives the data stream from other modules in the Megaplex-4 chassis (E1/T1, SHDSL, data or voice ports) via the Megaplex backplane, and converts it into IP or MPLS packets for transmission over Ethernet, IP or MPLS networks.
The packets are transmitted to the PSN via any MPW-1 Ethernet port or any Ethernet port (GbE, FE or VCG) of a module installed in the chassis. A remote pseudowire device converts the packets back to the original user traffic format.
