Rev. 2 - 08/10
Copyright© 1998-2010, Alpha Communications®, All Rights Reserved
Talk-Thru is a trademark of Norcon Communications Inc.
42 Central Drive • Farmingdale NY 11735-1202 • Phone (631) 777-5500 • Fax (631) 777-5599
TOLL-FREE 1-800-666-4800 • Web: www.AlphaCommunications.com • Email: email@example.com
The TTU-4 Talk-Thru communication system is particularly
suitable for low ambient noise environments that require an
unobtrusive, yet tamper-resistant voice communication sys-
tem. It features half-duplex (VOX) operation which allows both
parties to talk and listen without using any pushbuttons or
controls, for easy, natural conversation.
The TTU-4's counter-mounted design eliminates the need for
cutting into a barrier. It's low profile installation adds a personal
dimension to such situations as inmate-to-visitor communications.
All components including the microphones are housed in the sleek,
compact units to avoid for hazards that might be encountered in a
How It Works...
The TTU-4 incorporates the same high-quality electronics as the
basic (Norcon) patented model TTU-1 Talk-Thru system,
except it is a half-duplex system, enabling the attendant and the
customer to talk without pressing any buttons or controls.
TTU-4 High Security
Low-Profile Voice Communication System.
Ideal for High Security Locations
The TTU-4 provides clear communication, shaping the sound for
maximum intelligibility. Its compression circuitry decreases loud,
annoying sounds. Since the TTU-4 is designed for applications in
security areas, all controls and microphones are recessed to mini-
mize unauthorized adjustment and tampering. All exposed hard-
ware is tamper-resistant.
How To Install...
The TTU-4 comes ready to operate. The prism units are quickly
and easily mounted on the counter-top on opposite sides of the
barrier. They can be positioned back-to-back (as shown)