Add OC-3c connectivity to Cisco 6100 Series IP DSL switches with a multimode network interface module designed for optical transport. The single SC port supports 155.52 Mbps data transfer over optical fiber, making it a targeted fit for environments that need a specific interface rather than a general-purpose expansion card. This module is built for data networking applications where compatibility and link characteristics matter. Multimode fiber support helps maintain efficient optical transmission across the intended deployment range, while the SC connector provides a familiar termination style for structured network environments. For teams maintaining or extending installed Cisco 6100 infrastructure, this module offers a direct path to preserve platform alignment and keep the network architecture consistent. It is a practical choice when the requirement is not more ports, but the right port type for a defined optical service.