The Cisco WS-X5155 OC3 Multimode Network Interface Module is a single-port OC-3 multimode fiber interface module designed for Cisco Catalyst 5000-series switches. It delivers OC-3 (155.52 Mbps) throughput over multimode fiber, enabling high-speed uplink connections in legacy networks. As a modular NIM option for supported Cisco chassis, it provides a dedicated OC-3 multimode port for fiber-based connectivity.
