Clear-Com CS-702 - Manual (Page 7)

C S - 7 0 2 T W O - C H A N N E L M A I N S T A T I O N
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OPERATION
INTRODUCTION
Congratulations on choosing this Clear-Com product. Clear-Com was
established in 1968 and remains the market leader in providing intercoms for
entertainment, broadcast and industrial applications. The ruggedness and high
build quality of Clear-Com products defines the industry standard. In fact,
many of our original beltpacks and main stations are still in daily use around
the world.
Please read this manual completely to better understand the functions of this
product. If you encounter a situation or have a question that this manual does
not address, contact your dealer or call Clear-Com directly at the factory. Our
applications support and service people are standing by to assist you. (Refer to
Chapter 5: “Warranty” for contact information.) Thank you for selecting
Clear-Com for your communications needs.
THE CLEAR-COM CONCEPT
Clear-Com is a closed-circuit intercom system that consistently provides
high-clarity communication in both high-noise and low-noise environments.
A basic system consists of a single- or multi-channel power supply or main
station connected to various single- or multi-channel remote stations, such as
beltpacks and loudspeaker stations.
Clear-Com manufactures a wide variety of both portable and
fixed-installation units. All are compatible with each other. Clear-Com
intercom systems can also interface with other communication systems and
devices.
Clear-Com stations are interconnected with two-conductor, shielded
microphone cable, using 3-pin XLR connectors. One wire carries the DC
power from a main station or power supply to all remote stations, and the
other wire carries two-way (duplex) audio information. The shield acts as a
common ground. One termination (per channel) is needed throughout the
intercom network, and is usually located in the main station or power supply.
Clear-Com is a distributed amplifier system; each main and remote station
houses its own mic preamplifier, headset or speaker power amplifier, and
signaling circuitry. The automated headset detection circuit shuts off a
station’s mic pre-amp when the headset is disconnected, so background noise
on the line is not increased by an unused yet online station. Low-impedance
mic input lines and specially designed circuitry make Clear-Com channels
virtually immune to RFI and dimmer noise.
Clear-Com main stations, power supplies and certain remote stations each
have an auxiliary program input with its own volume control, which allows an
external audio source to be fed to the intercom system.
Clear-Com is a
closed-circuit intercom
system that consistently
provides high-clarity
communication in both
high-noise and low-noise
environments.