Cisco SPA-8XOC3-POC 8-Port OC-3c/STM-1 Shared Port Adapter

The Cisco SPA-8XOC3-POC is an 8-port OC-3c/STM-1 Shared Port Adapter (SPA) designed for Cisco routing platforms that support the Shared Port Adapter architecture. This module provides high-performance SONET/SDH connectivity, enabling routers to connect directly to optical transport networks used in telecommunications and service provider infrastructures. It is commonly deployed in environments where reliable high-speed optical communication is required for data transport and broadband services.The adapter features eight OC-3c/STM-1 ports, each supporting data transmission speeds of up to 155 Mbps. These interfaces enable connectivity to SONET or SDH networks, allowing service providers and large enterprises to integrate optical transport capabilities into their routing infrastructure. The module is typically used for applications such as backbone connectivity, aggregation of network traffic, and integration with legacy ATM or SONET/SDH transport systems.

As part of Cisco’s SPA modular interface family, the module integrates seamlessly with compatible Cisco routers and interface carriers. The SPA architecture allows network operators to increase interface density and expand network capabilities without replacing the entire router platform. This modular approach improves operational flexibility and helps reduce infrastructure upgrade costs.

The SPA-8XOC3-POC adapter is engineered for continuous operation in demanding networking environments, offering reliable signal transmission, stable performance, and efficient handling of optical network traffic. Its robust design ensures dependable operation in service provider networks, enterprise infrastructures, and telecommunications systems where high availability and network stability are essential.