KB-211/KB-211GM Two-Channel Speaker Stations
Clear-Com Intercom Systems
Rev. A
2
© Clear-Com Intercom Systems 1999
plug-on screw terminal strip. Male and female three-pin XLR connectors are
provided on the V-Box for an in-line connection to one of the intercom
channels.
The optional EB-TW daughter board module can be installed to provide an
interface to two intercom channels on a single microphone cable. 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 EB-4W 4-Wire option supports two-channel operation.
The KB-211 and KB-211GM are compatible with all Clear-Com Party-Line
intercoms.
Quick Start
1.
Unpack the unit and inspect it for any damage that may have
occurred during shipping.
2.
Set the Option switches to the default (up) position.
3.
Connect the intercom lines. If only one intercom line is to be
connected, set Option Switch 1 to the ON or CLOSED position.
4.
Install the KB-211 into the four-gang outlet box or V-Box. (For
additional information, refer to the Clear-Com PL-Pro
™
System
Installation Manual.)
5.
Set Listen Levels and Sidetones. (Refer to“5—Sidetone Control”
on page 4.)
6.
The speaker station should now be operating properly.
7.
Read the rest of this manual for further information.
Operation
Normal operation of the KB-211 Speaker Station only requires the front-panel
controls. The controls located elsewhere on the unit are intended to be set-
and-forget in nature. For intercom operation, set the Listen level control to the
desired level and press the Talk button when talking. If a headset or handset
is used, set the Sidetone control for each channel for the desired amount of
sidetone in the earphone. If the PT-4 hand-held, push-to-talk microphone is
used, or if the panel microphone is used on the KB-211GM, set the sidetone
controls for minimum feed-through to the speaker to prevent acoustic
feedback.
Front Panel
The controls, indicators, and connectors on the KB-211 and KB-211GM front
panels are shown on Figure 1 on page 3 and are described by the following
text.
Summary of Contents for KB-211
Page 1: ...KB 211 KB 211GM TWO CHANNEL SPEAKER STATIONS USER MANUAL...
Page 2: ......
Page 23: ...Clear Com Intercom Systems 1999 21 Rev A FIGURE 9 KB 211 Schematic...
Page 31: ......
