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Cisco expansion module - 56 ports
Model: 15454-DS1E1-56
Cisco - Expansion module - SONET/SDH - 56 ports - T-1/E-1
The Cisco ONS 15454 SONET 56-port DS-1/E1 Card provides a cost-effective, high-density DS-1/E1 interface solution for hand-offs and aggregation of large numbers of DS-1 and E1 circuits between networks. The card's high-density design frees up shelf-assembly slots for additional service-interface types.