Bosch 3922 988 43318 User Manual
2
Bosch Security Systems | 04-2003 | 3922 988 43318 en
Digital Congress Network | Installation and Operating Manual | Chapter 4 - Central Control Equipment
en | 4-3
LBB 3500/35, LBB 3500/35(D) Multi Central Control Unit
FIG 4-2 LBB 3500/35 Multi Central Control Unit (front and rear)
Controls and Indicators (Illustrated version LBB 3500/35 (
* Not applicable to LBB 3500/05
** Not applicable to LBB 3500/05 and LBB 3500/15
** Not applicable to LBB 3500/05 and LBB 3500/15
Front panel
1. Mains On/Off switch with indicator (green LED).
2. ‘Active Micros’
2. ‘Active Micros’
3 indicators (yellow LEDs) and a push-button selector switch to select the maximum number of
delegate microphones which may be activated concurrently 1, 2 or 4.
3. ‘Operation’
3 indicators (yellow LEDs) and a push-button selector switch to select the microphone mode of
operation: Open, Override or Voice.
4. ‘Equalizer’
1 x Microswitch (start) to initiate audio equalizer adjustment.
1 x Equalizer On’ indicator (green LED)
1 x Equalizer ‘Busy’ indicator (red LED)
1 x Equalizer On/Off button
1 x Equalizer On’ indicator (green LED)
1 x Equalizer ‘Busy’ indicator (red LED)
1 x Equalizer On/Off button
5. Unit loudspeakers tone control (bass).
6. Unit loudspeakers tone control (treble).
7. Unit loudspeakers volume control.
6. Unit loudspeakers tone control (treble).
7. Unit loudspeakers volume control.
Units include: Delegate, Chairman units and Flush mounted units with loudspeaker.
8. **Selection switch to select single or Multi-CCU systems, with error indication.
(not applicable for CCUs LBB 3500/05 and LBB 3500/15)
Rear panel:
9. *COM Port 2. RS232 connection for automatic camera control (default) (see
)
10. *COM Port 1. RS232 ‘DIRECT’ connection to DCN control PC (Default) (see
)
IMPORTANT: Port 1 on the CCU type LBB 3500/05 is NOT available for DCN PC control,
but set (default) for camera control.
but set (default) for camera control.
11. Tape/cassette recorder Input and output (cinch-type) for floor input and output.
12. 2 x Asymmetrical line input connectors (cinch-type) (floor input).
13. 3 x outlet trunk-line cable connectors for connection of contribution, distribution, and interpreta-
12. 2 x Asymmetrical line input connectors (cinch-type) (floor input).
13. 3 x outlet trunk-line cable connectors for connection of contribution, distribution, and interpreta-
tion units, plus extension power supplies. (3 x 6-pole circular connectors)
14. Euro-mains socket with in-built fuse (a.c. mains voltage selectable inside unit). Matching mains
cable (1.7 m (5.5 ft.) (D-version 2.5 m (8.2 ft.) included.
15. **Two BNC connectors (in/out), for loop-through connection to other Multi-CCU’s and Master
PC.
16. 2 x Asymmetrical line output connectors (cinch-type)
or 1 x Symmetrical line output for floor distribution to Public Address systems.
17. 3 indicators to indicate trunk-line overload (red LEDs).
Internal view:
Version illustrated LBB 3500/35
1
2
3
4
5
6
7
8
9
10
15
11
16
12
13
17
14
Port 2 not applicable for LBB 3500/05
LBB 3500/35 only
For 19” rack mounting see