Quick view TN763C Auxiliary Trunk CALL 888-832-4789 The TN763B/C/D has four ports. Each port has T, R, SZ, SZ1, S, and S1 signal leads. The ports are used for on-premises applications such as Music-On-Hold, Loudspeaker Paging, and Recorded Telephone... Compare
Quick view TN763D Auxiliary Trunk CALL 888-832-4789 The TN763B/C/D has four ports. Each port has T, R, SZ, SZ1, S, and S1 signal leads. The ports are used for on-premises applications such as Music-On-Hold, Loudspeaker Paging, and Recorded Telephone... Compare
Quick view TN765 Processor Interface CALL 888-832-4789 The TN765 has four data links to the Time Division Multiplexing (TDM) bus and a link through the memory bus to the processor. This circuit pack is an interface to the 3B2 MSA, DCS, ISDN, and AUDIX... Compare
Quick view TN767E DS1 / ISDN PRI Interface Circuit Pack CALL 888-832-4789 The TN767E or greater is required to communicate with CONVERSANT®. The TN767E or greater is also required to obtain the enhanced maintenance capabilities of the Enhanced Integrated Channel Service... Compare
Quick view TN768 Tone Clock CALL 888-832-4789 The TN768 supplies timing, including Stratum 4 timing, to the Port Network (PN). It produces the following tones: call progress, touch tones, answer-back, and trunk transmission test. The TN768 has 2... Compare
Quick view TN771D Maintenance Test Card CALL 888-832-4789 The TN771D performs maintenance functions. These functions include packet bus reconfiguration (allows diagnosis and correction of recoverable packet bus failures before the LAPD links fail) . LAPD... Compare
Quick view TN772 Duplication Interface CALL 888-832-4789 The TN772 selects the active processing element (control complex) in high reliability and critical reliability systems and coordinates the interchange of processing elements. The TN772 controls the... Compare
Quick view TN776 Expansion Interface (for R6 or earlier si) CALL 888-832-4789 The TN776 connected to the Time Division Multiplexing (TDM) bus in one Port Network (PN) is an interface between that PN and the TDM bus extended to another PN. The TN776 packages the TDM control... Compare
Quick view TN777B Network Controller (R6 and earlier) CALL 888-832-4789 The TN777B communicates control channel messages between the Processor circuit pack and the distributed network of port circuit packs on the Time Division Multiplexing (TDM) bus. The circuit pack... Compare
Quick view TN778 Packet Control (R6 and earlier) CALL 888-832-4789 The TN778 interfaces the packet bus with the Switch Processing Element (SPE) and terminates LAPD links. The TN778 supports packet bus signaling for ISDN D-channel signaling for ASAI applications and... Compare
