These came from a local university when they upgraded their equipment. They were tested and work properly. Pics are of the exact item(s) that you will receive. 



Nortel Optical Metro 5200 Series

The Optical Metro 5200 is a DWDM multi-service platform that delivers 48 protected wavelengths of bandwidth, 10G scalability, sub-rate multiplexing capabilities, network management, and modelling tools that simplify the deployment of efficient DWDM metropolitan networks.