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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:
• Refer to FIG. 2-10
• 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 (FIG. 2-11).
• If necessary carefully remove the loudspeaker connector.
• Locate solder spots 1070, 1170, 1171 and1172 (FIG. 2-11).
• 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