Intended for in-wall installations requiring flushmounting and bullet resistance. It is enclosed in a pair of wall-mounted galvanized steel back boxes with stainless steel rectangular faces. Typically used for communication between prisoners in a dayroom and a guard in the corridor.
Monitoring the activities of inmates and patients in high security or sensitive
areas requires a special kind of communication system. The intercom system must
be sensitive enough to deliver clear, intelligible communications in high-ambient
noise environments, it must be durable, and it must provide a measure of control
for those responsible for the inmates or patients. The Norcon TTU-5 is specifically
designed for these conditions.
How it Works...
The microphone and speaker combination is designed to penetrate high-ambient noise levels. In addition, the TTU-5’s circuitry shapes and enhances the sound for maximum intelligibility. Its compression circuitry decreases loud, annoying sounds. The microphone and speaker and controls are flush with the panel, assuring a tamper-resistant environment. The operator has access to recessed volume controls.
Installation...
The unit with the controls goes on the corridor side; the other unit on the
inmate or patient side. Simply connect the cable provided to the terminal blocks
on the stainless steel plates, then fasten these plates to the back-boxes using
the tamperproof screws and included tool. The panel on the exterior (corridor) side is connected to a continuous-duty,
117-Volt AC power supply which is stepped down to 12 Volts. TTU-5 systems are shipped complete with back-boxes, mounting hardware, instructions,
and power supply.
Features
Clear, 2-way hands-free voice communication
Provides ongoing activity monitoring as needed
Rugged, tamper-proof materials
Bullet-resistant option available (shield rated up to .357 Magnum service loads)
Export models available with 220VAC
One year warranty on base unit
Mechanical Specifications
Steel back-boxes: 11 in. H x 3 in. W x 2 in. D
Face Plates: 0.0625 in. Stainless steel standard. (Other gauges available.)
13 in. H x 4 in. W
Weight: Depends on gauge and type of material.
Mounting: Back-boxes recessed in barrier wall.
Panel controls: Exterior (corridor) panel only - on-off switch, recessed listen
volume, and recessed talk volume.
Electronic Specifications
Audio frequency response: Selectively shaped for maximum voice intelligibility
Audio power: 2 watts per amplifier
Distortion: Less than 2%
Listen mode: 20 dB compression
Talk mode: Vox
Microphones: Electret
