Cisco SPA-2XOC3-POS Module
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The Cisco SPA-2XOC3-POS is a dual-port OC-3/STM-1 Packet over SONET (POS) Shared Port Adapter designed for service provider, enterprise, and metro network environments. Each port delivers 155 Mbps full-duplex bandwidth, enabling an aggregate throughput of 310 Mbps with carrier-class reliability. It supports SONET/SDH framing, PPP and HDLC encapsulation, MPLS transport, and fast protection switching for high-availability optical networks. The module is ideal for backbone and edge applications that require dependable packet transport over existing SONET/SDH infrastructure. Seamlessly integrating with Cisco SPA-compatible routers, it provides modular scalability, advanced traffic engineering capabilities, and operational flexibility for mission-critical deployments.