The Cisco Industrial OSM-12CT3 Optical Service Module channels a DS-3 input into 12 DS-1 outputs, providing channelized DS-3 to DS-1 service. The model is described as a Cisco OSM-12CT3 T1 12-port device that maps DS-3 to DS-1 DS-0 across its 12 ports. Built for industrial environments, this 12-port module enables multiple DS-1 channels from a single DS-3 line, supporting per-channel DS-1 service in fiber-based networks.
