Cisco Channelized T3 (DS0) Shared Port Adapter - expansion module - 2 ports

The combination of channelized and clear channel T3 functions makes the Cisco Channelized T3 SPAs ideal for today's rapidly changing WAN environment. As an integral part of a service node where customer bandwidth needs are uncertain, the Cisco Channelized T3 SPA allows service providers to avoid determining beforehand how ports will be allocated between DS0, DS1, and DS3 connections. For enterprise remote-site connection, the flexibility to support DS0, DS1, and DS3 connections means this SPA reduces equipment expenditures by integrating the capabilities and services of numerous port adapters onto a single SPA. It also provides investment protection by growing with the enterprise to meet the needs for both today's DS0 and DS1 aggregation networks and tomorrow's T3 aggregation networks.

With integrated data-service-unit (DSU) functions on a per-port basis, the Cisco Channelized T3 SPA is compatible with the large number of standards-compliant DSUs on the market. Multilink Point-to-Point Protocol (MLPPP) is supported (in hardware) to enable link aggregation >T1. Up to 12 individual T1s can be combined within a multilink bundle that appears to be a single IP link. This enables service providers to provision bandwidth >T1 incrementally, without requiring migration of the circuit and customer premises equipment (CPE) infrastructure to T3 facilities.

The Cisco Channelized T3 SPA is hot-swappable and supports service-transparent online insertion and removal (OIR), allowing removal of the SPA without impacting the interface processor and other SPAs.