Avaya TN2464BPDS1 Definity / early Communication Manager PBX Card / Module

The Avaya TN2464BPDS1 is a DS1 interface circuit pack for the Avaya Definity and early Communication Manager PBX platforms, providing a T1 (24-channel) or E1 (32-channel) digital trunk interface with built-in echo cancellation. It’s a common trunk card for Definity systems needing a mix of CO, TIE, DID and off-premises station (OPS) port types, since the same card handles all four using robbed-bit or bit-oriented signalling depending on how the system is configured.

The card supports board-level A-Law/M-Law selection, CRC-4 generation and checking, and Stratum 3 clock capability, making it suitable for a wide range of digital trunk configurations, including international deployments. In ISDN-PRI applications, the ISDN D-channel connects through to a packet interface card via the system’s LAN bus, and the card’s downloadable firmware means its configuration can be updated without a physical swap.

It’s a good match for organisations maintaining an existing Avaya Definity or early Communication Manager platform who need matching DS1 trunk capacity or a like-for-like replacement. Tech-Star (UK-based, shipped worldwide) checks every card before it ships. Get in touch to confirm compatibility with your system release.