CIE-Group Communication Technology EZI Listening Ambient Noise Sensing Unit, regulates system volume level via local microphone surveillance ANS-1

Microphone input (sensor) a. 200uV balanced low impedance b. 150mV unbalanced high impedance
Audio In/Out - 500mV, unbalanced
Reaction time - 20seconds, 10dB range
XLR In (Female) OUT (Male)

List Price

£352.00

$545.60

€422.40

excl. VAT

Description	ANS-1
Power Supply	24v DC @ 40Ma, THIS CAN BE DERIVED FROM THE HOST SYSTEM, OR PLUG TOP POWER SUPPLY psu24V
Microphone Sensor Input Sensitivity	200µv balanced low impedance 150mv, unbalanced high impedance
Audio Input/Output Preferred Level	500mv unbalanced
Reaction Time (to noise change)	20 secs, 10db range
Interface Connections	All signal & powering interfaces are XLR, inputs are female, output male
Dimensions	120(W) x 180(H) x 70(D) mm
Weight (Net)	0.49kg
Weight (Gross)	0.70kg

Product Description

This level regulating/ambient noise-following module is designed to receive audio signals from an ambient sensing microphone and where required, adjust signal levels to the power amplifier of the public address installation.

The output level of the module will automatically and constantly adjust to follow the average rise and fall in thambient noise in the area served by the host amplifier (airports, hotel reception areas, transport terminals, sports stadiums etc). The ambient noise will be continuously sampled by the sensing microphone/s, sited as close to the source of charge as possible.

Where large areas have various localised sources of variable 'ambient' noise, it may be desirable to cover each with a separate sensor, (for example, an underground railway would benefit from having one sensor at each end to detect the noise of trains arriving from either direction).