Used Cisco Optical Services Module (OSM)

Part # OSM-20C48/1DPT-SL

Product Description: Cisco 7600 Series - 2-Port OC-48/STM-16 POS/DPT OSM, SM-LR, with 4 GE.

About the Cisco 7600 Series: "Routing solutions for optical metropolitan area networks and WANs. Up to 720 Gbps switching fabric. 32,000 PPPoE connections, 16,000 L2TP connections, and 16,000 SSG connections per MWAM module" (Cisco - A Beginner's Guide Third Edition by Velte & Velte).

Cisco 7600 Optical Services Modules
Cisco Routers - Part Numbers Listed Alphabetically