1. Central Control Unit (Com - ports) LBB3500/15
2 x 9-pin Sub-D connector RS 232 for:
Facilities
factory testing (diagnostics)
direct PC control
camera control
remote control (Open interface)
applications for:
- Mimic panel (Microphone control)
- Voting panel
- Attendance registration
- Intercom
- Message Distribution
I&O Manual
DCN SPCC PO CCE

2. Central Control Unit (Com - ports) LBB3500/15
Open interface applications for remote controller
The DCN system provides a facility for controlling microphones, microphone management modes, attendance registration and voting from a remote controller.
The remote controller can be custom built for a given application to control microphone activity - for example a push- button panel, with on/ off push-buttons and indicator. LEDs assigned to each microphone position can be used to control delegates microphones from a remote position.
The communication protocol is message based binary interface (i. e remote functions and update information).
Note: Before third parties can use the remote interface, the interface
must be enabled on the CCU by installing the LBB3587 key-disk.
- Only possible by using the LBB 3500/15 or /35
DCN SPCC PO CCE

3. CCU Trunk Communication Board (TCB-4)
Key to symbols :
1 Jumper X14 (See Chapter (Table 4.4))
2 S14 DIP- switches (See Chapter 4.6 )
3 S10 Push- button switch to reset the Central Control Unit during servicing.
4 Three LEDs (left to right) green/ yellow/ red. Normally the green/ yellow LEDs flash in sequence, indicating the software is running. Red LED illuminates during system reset.
5 S9 DIP- switches (See Chapter (Table 4.3))
6 Yellow LED indicates Digital Signal Processing (DSP) software is running.
7 Connector for multi- trunk board (used only in the multi- CCU)
8 Sockets for inserting flash EPROM (even)
9 Sockets for inserting flash EPROM (odd)
DCN SPCC PO CCE

4. CCU Trunk Communication Board (TCB-4)
Key to symbols :
10 SRAM back- up battery 3.6 V (life- time 5 years min.)
11 Jumper X13 (See Chapter (Tables 4.4))
12 Fuse 3.15 amp (delayed)
13 Connector for multi- trunk board (used only in the multi- CCU)
14 Serial RS232 Port 1
15 Serial RS232 Port 2
DCN SPCC PO CCE

5. Central Control Unit (Com - ports) LBB3500/15
LBB 3500/ 15 and LBB 3500/ 35 (TCB 4)
Port 1 : DCN Control PC
Port 2 : Camera Control
In a single (stand- alone) CCU system two serial COM- ports (Port 1 and Port 2) are available. Both ports can be individually configured.
NOTE: It is possible to select ‘Full’ protocol on both Port 1 and Port 2. However this is NOT recommended due to processing power and memory limitations.
Default settings are;
8 data bits
No parity check
1 Stop bit
DCN SPCC PO CCE

6. TCB-4 DIP Switch Settings
(default)
DCN SPCC PO CCE

7. Central Control Unit (Audio I/O) LBB3500/152
1. Asymmetrical Recorder In- & Outputs
2. 2 Asymmetrical line input connectors
3. Symmetrical or 2 Asymmetrical line outputs
DCN SPCC PO CCE

8. Central Control Unit (Audio I/O) LBB3500/15
1. Tape/cassette recorder input and output (Cinch-type)
Tape In Asym. nom. -33 dBV max. -3 dBV
Tape Out Asym. nom. -33 dBV max. -3 dBV
2. 2 Asymmetrical line input connectors (Cinch-type)
Line In Asym. nom. -18 dBV max. +12 dBV
3. Symmetrical/Asymmetrical line output connectors (Cinch-type)
Line Out Sym. nom. -12 dBV max. +18 dBV
Line Out Asym nom. -18 dBV max. +12 dBV
DCN SPCC PO CCE

9. Central Control Unit (Trunk Outlets) LBB3500/15
1. Red LED overload indicators
2. Trunk outlet used for loop-through of the trunk-line-cable 1 2
Trunk
DCN SPCC PO CCE

10. Central Control Unit (Trunk Outlets) LBB3500/15
For loop-through of the DCN trunk-line without regenerating the digital signal.
Power handling capacity maximum:
PCF per outlet
PCF total for the three outlets of the CCU.
PCF=<60 max.
DCN SPCC PO CCE

11. Extension Power Supply LBB4106/x0
1. Mains socket with built-in fuse
Nominal
Mains voltage Mains fuse Power Consumption
220, 230, 240 V AC. T- 4A (slow blow) 350 W
105, 115 V, 125 V AC. T- 5A (slow blow)
Warning:
All units must be powered via an earthed mains outlet.
115V-T4A/230V-T2A
I&O Manual
DCN SPCC PO CCE

12. Central Control Equipment
End of section
 Robert Bosch GmbH
All rights are reserved. Reproduction or passing on to third parties in whole or in parts is prohibited without the written consent of the copyright owner.
DCN SPCC PO CCE