ClearCom KB-212 User Manual page 2

Clear-Com Intercom Systems
Introduction
Congratulations and thank you for choosing this Clear-Com product.
The KB-212 Speaker Station is a powerful, yet user-friendly unit that can
serve as a versatile intercom station.
Please read this manual completely to better understand the functions of
these products. For questions not addressed in this manual, contact the
dealer or Clear-Com directly. Clear-Com applications support and service
people are ready to help.
Description
The Clear-Com PL-Pro™ KB-212 speaker station is designed for use in
theatres, live performances, industrial environments, and small television
facilities. It features speech intelligibility, even in high noise levels, and can be
customized through its programmable options.
Local or remotely controlled talking or listening is selectable and allows either
hands-on or hands-free operation. The talk button operates in momentary
mode. The integral microphone and speaker offer half-duplex communication.
The KB-212 offers both visual and audible call signaling to attract the
attention of operators.
A balanced program input allows the monitoring of external audio through the
speaker. This program input can also be used as a paging function.
The integral speaker's volume level can be adjusted using a front-panel knob.
An internal control allows setting a minimum speaker level. An automatic
speaker switching circuit will quiet the speaker when the talk button is
activated.
The KB-212 receives 30-VDC power from the Clear-Com intercom line. The
unit mounts either in a standard four-gang electrical outlet box or in an
optional Clear-Com V-Box. The extra-thick front panel and compact, surface-
mount circuitry results in a reduced size and lighter weight package that
maintains Clear-Com ruggedness. The intercom channel connects to a plug-
on screw terminal strip. Male and female three-pin XLR connectors are
provided on the optional V-Box to offer a through connection to the intercom
channel.
Although the optional EB-4W daughter board module allows this unit to
function on a TW line, the unit's operation will remain single channel. Also, the
EB-4W 4-Wire daughter board module is available to allow long-distance
connections using separate pairs of wires for send audio and receive audio.
The KB-212 is compatible with all Clear-Com Party-Line intercoms.
© Clear-Com Intercom Systems 2000
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KB-212 Speaker Station
Rev. B