Transcript DCN Next Generation Technology Security Systems ST/PRM3-EU | 02.Mar.06 DCNNG SA SD Technology DCN Next Gen | © Robert Bosch GmbH reserves all rights even.

DCN Next Generation Technology
Security Systems
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DCN Next Gen
| © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of
disposal such as copying and passing on to third parties.
DCN Next Generation Technology
Security Systems
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I&U Instructions
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disposal such as copying and passing on to third parties.
DCN Next Generation Technology

Digital signal processing and transmission via an advanced digital technology.

Signal transmission and processing is handled by proven digital audio
technology. This technology is implemented into dedicated ICs handling digital
audio processing as well as analogue-to-digital and digital-to-analogue
conversion.
 Other ICs specially developed for this application include dedicated protocol
converter chips. The system combines the highest levels of functionality
and performance in an extremely compact design.
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I&U Instructions
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disposal such as copying and passing on to third parties.
DCN Next Generation Technology

Other ICs specially developed:

ACN-1 (Audio Communication Network-1)
is a Slave Protocol Transceiver located in all active DCN-units



Receiving single-channel downlink
Audio-data and Control-data
Transmits single-channel uplink
Audio-data and Control-data.
ACN-2
Is a Master Protocol Transceiver located only in the CCU


Transmits multi-channel downlink
Audio-data and Control-data
Receives multi-channel uplink
Audio-data and Control-data from all the slaves.
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I&U Instructions
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disposal such as copying and passing on to third parties.
DCN Next Generation block diagram
DAC
ADC
DAC
DAP
ACN-1
ADC
DAC
DAC
Dual Delegate Interface
DAC
DAP
Channel selector unit
2x RS232
Personal
Computer
&
External
Devices
DUART
N
e
t
w
o
r
k
c
a
b
l
i
n
g
ADC
DAC
ACN-1
DAP
DAC
Interpreter Desk
Concentus Delegate unit
ACN-1
µProc.
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e.g.
Hall Display
Data Distribution Board
ACN-1
e.g. Audio Matrix/
Remote Interpretation
Voting unit
ACN-2
DAP
DSP
DSP
Audio Expander
FLASH
EPROM
RAM
µProc.
Control
Panel
Central Control Unit
Security Systems
RS-232
I&U Instructions
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disposal such as copying and passing on to third parties.
I/O - 1
I/O - 2
DCN Next Generation Network Cabling
Uplink
Downlink
ACN-2
ACN-1
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DAP
I&U Instructions
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disposal such as copying and passing on to third parties.
DCN Next Generation Addresses

Addresses

Active unit addresses
 Delegate
 Chairman
 Voting
 Interpreter Units


Passive units addresses
 Electronic Channel Selector 1 (232)
 Data Distribution Board
8 (248..255)
Ambient microphone via
 Dual Delegate Interface
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1 (238)
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DCN Next Generation Audio Channels

Capacity
Audio uplink channels
32 (20 kHz bandwidth)
 Audio downlink channels
32 (20 kHz bandwidth)
 Intercom uplink channels
4 (3.5 kHz bandwidth)
 Intercom downlink channels
4 (3.5 kHz bandwidth)


Quality

Frequency characteristics 30 Hz - 20 kHz -3dB at nominal level

Harmonic distortion
< 0.5 %

Signal-to-noise ratio
> 89 dBA at max. output level

Crosstalk attenuation
> 85 dB

Dynamic range
> 85 dB
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at 1kHz at -3dB of the max. input level
at 1kHz at max. output level
I&U Instructions
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disposal such as copying and passing on to third parties.
Standard Audio Routing Channel Assignments

Downlink
Channels
The Digital Congress Network
distributes 32 digital channels
audio:
 Floor
 Interpretation
 Intercom
Uplink
Channels
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| © Robert Bosch GmbH reserves all rights even in the event of industrial property rights. We reserve all rights of
disposal such as copying and passing on to third parties.
DCN Next Generation Technology
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