Cisco 4OC48/POS-SR-SC

The Cisco 4OC48/POS-SR-SC is a line card module designed for use in Cisco routers. It is specifically designed for high-speed optical networking and supports OC-48 (Optical Carrier-48) speeds, which is equivalent to 2.5 Gbps (Gigabits per second). The "POS" in the name stands for Packet over SONET, indicating that it is used for transmitting packet-based data over a SONET (Synchronous Optical Networking) network. The "SR" refers to the short-reach optical interface, which is designed for shorter distance connections. The "SC" indicates that it uses a standard SC (Subscriber Connector) optical connector for connecting to the optical network. Overall, the Cisco 4OC48/POS-SR-SC is a high-performance line card module used for high-speed optical networking in Cisco routers.