Lbb4124/Xx Channel Selector; Introduction; Controls, Connectors And Indicators - Bosch DCN Next Generation Installation And User Instructions Manual

DCN NG | Installation and User Instructions | Section 2 | Interpretation Equipment
5 LBB4124/xx Channel
Selector
5. 1

Introduction

The LBB4124/xx Channel Selector is capable of
retrieving the floor and up to 31 interpretation channels.
It cannot handle intercom channels. The following types
are available:
Type Intended for
LBB4124/00 Mounting in a horizontal surface
LBB4124/10 Mounting in a vertical surface
Bosch Security Systems | 2004-03 | 9922 141 70521en
5.2 Controls, connectors and
indicators
5.2.1 Front view
The front of the channel selector (see figure 5.1)
contains the following:
1 Headphones output - 3.5 mm jack socket to
connect headphones.
2 Volume control - Two keys to control the volume
of the headphones. When the maximum (minimum)
volume is reached, pressing the volume up (down)
key has no effect. The volume level is adjustable
between -60 dB and 0 dB (60 steps). It is also
possible to mute the volume. The default volume
is -21 dB.
3 Display - Numeric display for channel number
indication.
4 Channel control - Two keys (up, down) for
channel selection.
5 External headphones connector - A 3-pin
header to connect an extra headphones socket. The
pin header is internally connected to solder pads
(see section 5.2.3) that can be used for the same
purpose. See section 5.3.4 for information about
connecting an extra headphones socket.
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2
figure 5. 1 : Front view of the channel selector
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