Bosch 3922 988 43318 User Manual

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Bosch Security Systems | 04-2003 | 3922 988 43318 en
Digital Congress Network | Installation  and Operating Manual | Chapter 2 - Contribution Equipment
en | 2-9
LBB 3547/00 Chairman Conference Unit (Concentus)
2.5.1  Adjustment setting conference  (Concentus) units
The operational functionality of the delegate conference (Concentus) units LBB 3544/00,                 
LBB 3545/00,  LBB 3546/00, and the chairman conference units LBB 3547/00 can be set by solder 
spots 1070, 1170, 1171 and 1172 located on the units PCB. 
To locate the solder spots proceed as follows:
Unscrew and remove the 4 securing TorX™ screws located on the underside of the unit.
Carefully remove the units housing, and locate the printed circuit board (
).
If necessary carefully remove the loudspeaker connector.
Locate solder spots 1070, 1170, 1171 and1172 (
Set the units functionally (see below).
Once done, replace the loudspeaker connection and replace the units housing.   
Functionality
Solder spots 1070
Open (default) :
Normal operation
Closed
:
Microphone LED ring will begin to flash when the last 60 seconds of 
speech time remains.
NOTE: 
 If 1070 is ‘closed’ when the ‘Voice’ activation mode is selected, the microphone 
LED ring will remain lit when speaking into the microphone. If a flashing LED ring is required 
when the speaker has only 60 seconds of speech time remaining,  then solder spot 1070 
must be closed. 
Solder spots 1170 
 
Open (default) :
Normal operation
Closed
:
The intercom function is no longer available (see Note)
NOTE: 
 If  1170 is closed,  the functionality of solder spots 1171 and 1172 is available     
(for example - an external make contact can be connected to PINS 1 and 2 of the intercom 
connector for ‘FRAude’ (Fraud push_button) and ‘FINger’ (Finger print reader) operation.
Solder spots 1171
Open (default) :
Normal operation
Closed
:
‘FRAude’ bit  is available via the intercom connector (see Note)
Solder spots 1172
Open (default) :
Normal operation
Closed
:
‘FINger’ bit is available via the intercom connector (see Note)
NOTE: 
 If solder spot 1170 is closed a choice of only one of the functions is available
‘FRAude’ or FINger’ NOT both.
FIG. 2-11  PCB layout conference (Concentus) units
1007
Concentus PCB (Top view rotated 90°)
Solder spot
1172
Solder spot
1171
Solder spot
1170
Solder spot
1070
Intercom handset connector