2
Bosch Security Systems | 04-2003 | 3922 988 43318 en
Digital Congress Network | Installation and Operating Manual | Chapter 11 - System Set-up and Operation
en | 11-11
Delegate/Chairman unit operation (Conference units only)
11.7.3 OPERATION Chairman Unit LBB 3547/00
FIG 11-6 Operation CONCENTUS (conference) Chairman units LBB 3547/00
Microphone/headset
Jack socket 3.5 mm
ID Chip-card reader
Headphone
volume control
Microphone Status
indicator**
Microphone On/Off key
Priority key
Microphone ON
indicator**
Graphic LC-display
with back-lighting
(see page 11-12 )
5-softkeys with LED
indicators
(see page 11-12 )
Side view
Headphone
jack socket 3.5 mm
Headphone sockets and
volume controls located at
both sides of the unit,
catering for two delegates.
Microphone headset
located at the left side of
the unit only (microphone
must be electret type only)
Access control
Softkeys for voting and
Microphone functions
Microphone Language channel
selection
** The unit has three microphone status indicators. Two located on the unit itself and the other a ‘light-ring’ indicator (red) located
on the installed pluggable microphone LBB 3549/00 or LBB 3549/50 (not shown). All three are illuminated when the microphone
is ON. When a microphone/headset is inserted into its jack socket, the pluggable microphone and its illuminated light ring are
automatically switched OFF.
Loudspeaker
(muted when
microphone is ON)
XLR Socket for
pluggable microphone
LBB 3549/xx (not shown)
Language channel select
keys up/down
Headphone
volume control
Numeric LC-display for
language channel select
indication
Headphone
volume control