SPA-4XOC12-POS

The Cisco 4-Port OC-12c/STM-4 POS Shared Port Adapter is designed to handle high-bandwidth networking needs by providing multiple OC-12c/STM-4 Packet over SONET (POS) ports. Often found in service provider and large enterprise environments, it enables fast and reliable WAN connections over fiber-optic networks.

Built for use with Cisco routers, this adapter suits network engineers and IT professionals who require efficient WAN aggregation or backbone connectivity. Its shared port design allows flexible configuration based on network demands.

Key Features

• Four OC-12c/STM-4 POS ports enable high-speed data transfer over SONET/SDH
• Integrates smoothly with Cisco router series for streamlined deployment
• Shared port adapter setup allows dynamic resource allocation
• Supports robust transport protocols suited for carrier-grade networks
• Optimized for consistent performance in demanding WAN environments

This adapter is often deployed in ISPs and enterprise backbones where reliable and fast WAN links are essential. It helps maintain steady traffic flow and network uptime by efficiently managing multiple high-speed POS connections without overwhelming router resources.