Tustin, CA – March 13, 2007 — Hall Research Technologies announces the Model VSA-31 A/V switch with projector control transmitter and receiver pair.

Designed to add high-end A/V capabilities to any classroom or conference room, the VSA-31 integrates A/V switching, projector control, video transmission over UTP, and audio amplification in one package. The VSA-31 is comprised of a transmitter, configured as a 4-gang wallplate, and a small receiver. The transmitter provides individual buttons for selecting among 2 PCs or a TV (S-Video or Composite) source. It sends the selected input signal to a receiver via 2 Category 5 cables up to 750 feet (230 m) away. The system features a built-in stereo audio amplifier with volume control to drive 4 or 8 Ohm speakers directly. The VSA-31 also issues control commands to projectors or LCDs for power on/off and source selection.

The Model VSA-31 supports resolutions up to 1600 x 1200 and features automatic long-cable compensation for any length of UTP cable to 750 feet (230 m). No power supply is needed for the wallplate since power is supplied via the Cat5 cables from the remote unit. In addition to the 12 watt amplified stereo outputs, the remote receiver provides line-level audio for connection to an external audio amp if required.

For additional information please contact Gail Haghjoo (800) 959-6439 – Hall Research Technologies, 1163 Warner Avenue Tustin, CA 92780 www.Mini-Cat.com.