Description
The Cisco 1-Port Channelized STM-1/OC-3 Shared Port Adapters (SPAs) Version 2 addresses these needs by sharply reducing the amount of aggregation equipment and interconnectivity needed between edge and backbone routers. The Cisco 1-Port Channelized STM-1/OC-3 SPA provides Cisco 7600 and Cisco ASR 1000 and ASR 9000 Series Aggregation Services Routers with support for T1/E1 aggregation. Designed for telcos and Internet service providers (ISPs), the SPA includes one OC-3/STM-1 port, which can be configured with multiple channels of n x T1, T1, fractional T1, or DS-0 in a SONET environment or n x E1, E1, fractional E1, or 64 kbps in an SDH environment.
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