TN2209
The TN2209 has 4 ports used for Type 1 or Type 5 four-wire E & M lead signaling tie trunks, that can be automatic, immediate-start, wink-start, and delay-dial. The TN2209 provides an interface between these four frequency signaling tie trunk lines and the DEFINITY TDM network. Based on a TN760D each port has modified E, and M signal leads for universal hardware compatibility. The TN2209 provides release link trunks required for the CAS feature and has administrable A-Law and µ-Law companding.
