Eartec UltraLITE interface to wired intercom Tecpro (24V)

Add UltraLITE Wireless Headsets to Your Tecpro or Telex Audiocom System

The Eartec UltraLITE HUB-INT interface bridges the UltraLITE HUB wireless system with 2-wire wired intercoms — bringing full-duplex wireless headsets to permanently installed party line systems without floor cables or major infrastructure changes.

This version (HUBINTX) is designed for Tecpro and Telex Audiocom systems operating at 24V DC. It is not suitable for ClearCom or Metro systems, which run at a higher intercom voltage — for those, order the HUBINCC instead.

The interface draws its power directly from the intercom circuit. On power-up, a software-controlled circuit initiates the signal balancing automatically — but this also means the interface loses its settings if power is interrupted. Dial adjustments on the interface module balance signal levels between the two systems for a seamless full-duplex audio link.

Important: The interface must not be connected to the HUB when it is powered up. Connect the interface to the intercom first, allow it to initialise, then connect the HUB.

Showcomms supplies a setup crib sheet with every HUBINTX order to guide you through the initialisation sequence.

2-wire XLR3 pin configuration (Audiocom and Tecpro)

• Pin 1 — Ground
• Pin 2 — Power (24V DC)
• Pin 3 — Audio

Part number: HUBINTX

Note: The model variant can only be confirmed from the rear label behind the rubber cover. On Tecpro-compatible units, the label reads "Telex" — as shown in the product image.