3EH73005ADJC ALCATEL OmniPCX PBX Expansion Card

The Alcatel 3EH73005ADJC is a UAI 4 (Universal Access Interface) digital interfaces card designed for integration with Alcatel OmniPCX enterprise communication systems. This board provides four digital interface ports, enabling connection of digital terminal devices to the PBX system.

The UAI 4 card is deployed within Alcatel OmniPCX Office and OmniPCX Enterprise platforms, allowing businesses to connect digital proprietary handsets and other compatible digital endpoints. This expansion card slots into the system’s main cabinet to extend the telephony infrastructure’s capacity for digital device connectivity.

The Alcatel OmniPCX platform is a legacy business communications system that remains in service across many European enterprise installations. While no longer in active production, these systems continue to be maintained and supported through the secondary market, with expansion cards like the UAI 4 essential for ongoing operations and capacity adjustments.

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