KX-TDA6174 Panasonic KX-TDA / KX-TDE PBX Expansion Card

The Panasonic KX-TDA6174 is a 16-port single line telephone extension card designed for Panasonic’s KX-TDA and KX-TDE series hybrid IP-PBX systems. This expansion card provides analogue extension ports for connecting standard single line telephones, fax machines, and other analogue devices to the telephone system.

The KX-TDA6174 is installed into the expansion slots of compatible Panasonic PBX cabinets, enabling businesses to scale their analogue extension capacity in increments of 16 ports. This makes it suitable for organisations requiring a mix of digital, IP, and analogue endpoints across their telephony infrastructure.

The KX-TDA and KX-TDE platforms are now discontinued legacy systems, though they remain widely deployed in established business environments. The KX-TDA6174 continues to be sought after for system expansions, replacements, and ongoing maintenance of existing Panasonic PBX installations.

Available from Tech Star as new or refurbished stock. Submit a price enquiry for availability and lead time.