The PM5337 ADM-622 is a highly integrated solution for compact optical transport systems with 622Mbit/s and 155Mbit/s SONET/SDH network interfaces. The feature rich device integrates a complete SONET/SDH subsystem including VT/TU/STS/AU memory based cross-connect capable of handling multiple network topologies, including 1+1, 1:1, UPSR, and MSPRING. This crossconnect supports MAPSTM automated protection switching, a mechanism that allows standards based protection switching without software intervention.

In addition, the device integrates T1/E1, DS3/E3/EC-1 framers and mappers, as well as 10/100/1000 MACs with GFP/HDLC/LAPS encapsulation and mapping into a Virtual Concatenation (VCAT) subsystem capable of both high-order and low-order virtual concatenation with LCAS. The device supports both line and equipment redundancy. Two SONET/SDH network interfaces with 622M of both low-order and high-order pointer processing per-port are provided for line redundancy, while four 622/2488 Mbit/s ESSI serial backplane interfaces provide equipment redundancy as well client interface scalability. The ADM-622 enables extremely compact and low cost equipment designs with unprecedented flexibility and carrier-class reliability. Target applications for the ADM-622 are single card

compact access MSPPs. The ADM-622 is also well suited for adding multi-service capability into existing larger MSPP platforms by leveraging the ESSI serial backplane interfaces.Read more