Bosch DCN Next Generation Guide

DCN Next Generation
Installation and User Instructions
Digital Congress Network
en

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Important Safeguards
Prior to installing or operating this product, always read
the Important Safety Instructions which are available as
a separate document (9922 141 7014x).

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DCN NG | Installation and User Instructions | Table of Contents en | 5
Table of Contents
Important Safeguards.....................................................................................................................................3
Table of Contents ............................................................................................................................................5
Section 1 - Introduction.................................................................................................................................9
1. About this manual .........................................................................................................................................................11
1.1 Purpose .....................................................................................................................................................................11
1.2 Intended audience ..................................................................................................................................................11
1.3 Hyperlinks ...............................................................................................................................................................11
1.4 Related documentation ..........................................................................................................................................11
1.5 Alerts ........................................................................................................................................................................11
1.6 Signs .........................................................................................................................................................................12
1.7 Conversion tables ...................................................................................................................................................12
2. Digital Congress Network Next Generation ...............................................................................................................13
2.1 Introduction .............................................................................................................................................................13
2.2 Modular system approach .....................................................................................................................................13
2.3 Advanced digital technology .................................................................................................................................13
2.4 Audio quality ...........................................................................................................................................................13
2.5 Reduced installation costs ......................................................................................................................................13
2.6 Simplified wiring .....................................................................................................................................................15
2.7 Central control unit ................................................................................................................................................16
2.8 Interpretation equipment .......................................................................................................................................16
3. Glossary ..........................................................................................................................................................................17
Section 2 - Interpretation Equipment ......................................................................................................19
4. LBB4120/00 Interpreter Desk ......................................................................................................................................21
4.1 Introduction .............................................................................................................................................................21
4.2 Controls, connectors and indicators .....................................................................................................................21
4.3 Connections .............................................................................................................................................................24
4.4 Operation .................................................................................................................................................................26
4.5 Programming ...........................................................................................................................................................33
4.6 Technical data .........................................................................................................................................................39
5. LBB4124/xx Channel Selector ....................................................................................................................................40
5.1 Introduction .............................................................................................................................................................40
5.2 Controls, connectors and indicators .....................................................................................................................40
5.3 Connections .............................................................................................................................................................42
5.4 Mounting .................................................................................................................................................................45
5.5 Configuration ..........................................................................................................................................................45
5.6 Technical data .........................................................................................................................................................47
5.7 Headphones .............................................................................................................................................................47
6. LBB4149/xx Pluggable Microphone ...........................................................................................................................48
6.1 Introduction .............................................................................................................................................................48
6.2 Controls, connectors and indicators .....................................................................................................................48
6.3 Connections .............................................................................................................................................................49
6.4 Operation .................................................................................................................................................................49
6.5 Technical Data ........................................................................................................................................................49
7. LBB4112/00 Data Distribution Board .........................................................................................................................50
7.1 Introduction .............................................................................................................................................................50
7.2 Controls, connectors and indicators .....................................................................................................................50

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7.3 Connections .............................................................................................................................................................51
7.4 Configuration ..........................................................................................................................................................53
7.5 Applications .............................................................................................................................................................54
7.6 Mounting .................................................................................................................................................................58
7.7 Technical data .........................................................................................................................................................58
Section 3 - Central Control Equipment ...................................................................................................59
8. LBB4100/00(D) Central Control Unit .........................................................................................................................61
8.1 Introduction .............................................................................................................................................................61
8.2 Controls, connectors and indicators .....................................................................................................................61
8.3 Connections .............................................................................................................................................................64
8.4 Mounting .................................................................................................................................................................68
8.5 Using the configuration menu ...............................................................................................................................69
8.6 Configuration and operation .................................................................................................................................71
8.7 Technical Data ........................................................................................................................................................75
9. LBB4106/00(D) Extension Power Supply ..................................................................................................................77
9.1 Introduction .............................................................................................................................................................77
9.2 Controls, connectors and indicators .....................................................................................................................77
9.3 Connections .............................................................................................................................................................78
9.4 Mounting .................................................................................................................................................................80
9.5 Technical data .........................................................................................................................................................80
10. LBB4402/00 Analogue Audio Expander ....................................................................................................................81
10.1 Introduction .............................................................................................................................................................81
10.2 Controls, connectors and indicators .....................................................................................................................81
10.3 Connections .............................................................................................................................................................82
10.4 Mounting .................................................................................................................................................................85
10.5 Using the configuration menu ...............................................................................................................................86
10.6 Configuration and operation .................................................................................................................................88
10.7 Technical Data ........................................................................................................................................................93
Section 4 - Installation Accessories...........................................................................................................97
11. LBB4114/00 Trunk Cable Splitter ...............................................................................................................................99
11.1 Introduction .............................................................................................................................................................99
11.2 Controls, connectors and indicators .....................................................................................................................99
11.3 Connections .............................................................................................................................................................99
11.4 Mounting .................................................................................................................................................................99
11.5 Technical data .......................................................................................................................................................100
12. LBB4115/00 Tap-off Unit ...........................................................................................................................................101
12.1 Introduction ...........................................................................................................................................................101
12.2 Controls, connectors and indicators ...................................................................................................................101
12.3 Connections ...........................................................................................................................................................101
12.4 Mounting ...............................................................................................................................................................101
12.5 Technical data .......................................................................................................................................................102
13. LBB4116/xx Extension Cables ..................................................................................................................................103
13.1 Introduction ...........................................................................................................................................................103
13.2 Connectors .............................................................................................................................................................103
13.3 Wiring ....................................................................................................................................................................103
13.4 Custom-made cables .............................................................................................................................................104
14. LBB4117/00 Cable Locking Clamps .........................................................................................................................105
15. LBB4118/00 Termination Plug ..................................................................................................................................106

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16. LBB4125/00 End Caps ...............................................................................................................................................107
17. LBB4127/00 Couple Pieces ........................................................................................................................................108
18. LBB4410/00 Network Splitter ....................................................................................................................................109
18.1 Introduction ...........................................................................................................................................................109
18.2 Controls, connectors and indicators ...................................................................................................................109
18.3 Connections ...........................................................................................................................................................111
18.4 Mounting ...............................................................................................................................................................112
18.5 Operation ...............................................................................................................................................................112
18.6 Technical data .......................................................................................................................................................112
19. LBB4414/00 Fiber Interface .......................................................................................................................................113
19.1 Introduction ...........................................................................................................................................................113
19.2 Controls, connectors and indicators ...................................................................................................................113
19.3 Connections ...........................................................................................................................................................114
19.4 Mounting ...............................................................................................................................................................115
19.5 Operation ...............................................................................................................................................................116
19.6 Technical data .......................................................................................................................................................116
20. LBB4416/xx Network Cables ....................................................................................................................................117
20.1 Introduction ...........................................................................................................................................................117
20.2 Connectors .............................................................................................................................................................117
20.3 Diagrams ................................................................................................................................................................117
20.4 Wiring ....................................................................................................................................................................118
20.5 Custom-made cables .............................................................................................................................................118
20.6 Technical data .......................................................................................................................................................118
21. LBB4417/00 Network Connectors ............................................................................................................................119
22. LBB4118 Cable-connector Tool Kit ..........................................................................................................................120
22.1 Introduction ...........................................................................................................................................................120
22.2 Contents .................................................................................................................................................................120
22.3 Diagrams ................................................................................................................................................................120
22.4 Creating optical network cables ..........................................................................................................................121
23. LBB4419/00 Cable Couplers .....................................................................................................................................125
Section 5 - System Installation .................................................................................................................127
24. Environmental conditions and maintenance ............................................................................................................129
24.1 System ....................................................................................................................................................................129
24.2 Public areas ............................................................................................................................................................129
24.3 Technical rooms ....................................................................................................................................................129
24.4 Ventilation .............................................................................................................................................................130
24.5 Cleaning .................................................................................................................................................................130
24.6 Storage ....................................................................................................................................................................130
25. Flush-mounting ............................................................................................................................................................131
25.1 Introduction ...........................................................................................................................................................131
25.2 Snap-mounting ......................................................................................................................................................131
25.3 Block-mounting .....................................................................................................................................................132
26. DCN Design .................................................................................................................................................................134
26.1 Introduction ...........................................................................................................................................................134
26.2 Concepts ................................................................................................................................................................134
26.3 Limitations .............................................................................................................................................................134
26.4 Control capacity ....................................................................................................................................................135
26.5 Power capacity ......................................................................................................................................................135

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26.6 Tap-offs .................................................................................................................................................................136
26.7 Loop-throughs .......................................................................................................................................................136
26.8 Cable lengths .........................................................................................................................................................137
27. Optical network design ...............................................................................................................................................139
27.1 Introduction ...........................................................................................................................................................139
27.2 Limitations .............................................................................................................................................................139
27.3 Control capacity ....................................................................................................................................................139
27.4 Power capacity ......................................................................................................................................................139
27.5 Cabling ...................................................................................................................................................................141
27.6 Example layouts ....................................................................................................................................................143
28. Interconnecting Interpretation Equipment ...............................................................................................................145
28.1 Interpreter desks ...................................................................................................................................................145
28.2 Booths .....................................................................................................................................................................145
29. Wireless Language Distribution .................................................................................................................................146
Section 6 - System Set-up and Operation..............................................................................................147
30. Initialization ..................................................................................................................................................................149
30.1 Introduction ...........................................................................................................................................................149
30.2 Stand-alone system ...............................................................................................................................................149
30.3 PC based system ...................................................................................................................................................149
31. DCN Configuration .....................................................................................................................................................150
32. PC Control ...................................................................................................................................................................151
32.1 Requirements ........................................................................................................................................................151
32.2 Connecting to the CCU .......................................................................................................................................151
32.3 Connecting peripheral devices ............................................................................................................................151
Section 7 - Appendices...............................................................................................................................153
A Kycon KPP-4P connector ...........................................................................................................................................155

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Section 1 - Introduction

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1 About this manual
1.1 Purpose
The purpose of the Installation and User Instructions is
to provide information required to install and operate
the Digital Congress Network Next Generation
(DCN NG).
1.2 Intended audience
This manual is primarily intended for installers who are
responsible for the installation and configuration of a
DCN NG system. Besides information required to
install the system, this manual also contains operating
instructions. These are intended for the users of the
system.
1.3 Hyperlinks
The Installation and User Instructions are also available
as a digital document in the Adobe Portable Document
Format (PDF). All references to pages, figures, tables,
etc. in this digital document contain hyperlinks to the
referenced location.
1.4 Related documentation
The following related documents are available:
• LBB4190/00 DCN Start-up Software User Manual
(9922 141 7051xen).
• LBB4187/00 Open Interface Software User Manual
(9922 7048xen)
• LBB4185/00 System Installation Software User
Manual (9934 141 7046xen).
• LBB4172/00 Simultaneous Interpretation Software
User Manual (9925 141 7036xen).
1.5 Alerts
In this manual, four types of alerts are used. The alert
type is closely related to the effect that may be caused
when it is not observed. These alerts - from least severe
effect to most severe effect - are:
•Note
Alert containing additional information. Usually, not
observing a note alert does not result in damage to
the equipment or personal injuries.
•Caution
The equipment can be damaged if the alert is not
being observed.
•Warning
Persons can be (severely) injured or the equipment
can be seriously damaged if the alert is not being
observed.
•Danger
Not observing the alert can result in death.

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1.6 Signs
Except for note alerts, the nature of the effect that can
be caused when the alert is not observed, is indicated
using a sign. For note alerts, the sign provides more
information about the note itself. In this manual, the
following signs are used in combination with alerts:
1.7 Conversion tables
In this manual, SI units are used to express lengths,
masses, temperatures etc.. These can be converted to
non-metric units using the information provided below.
Note
General sign for notes.
Note
Consult the indicated source of information.
Caution, Warning, Danger
General sign for cautions, warnings and
dangers.
Caution, Warning, Danger
Risk of electric shock.
Caution, Warning, Danger
Risk of electrostatic discharges.
table 1.1: Conversion of units of length
1 in = 25.4 mm 1 mm = 0.03937 in
1 in = 2.54 cm 1 cm = 0.3937 in
1 ft = 0.3048 m 1 m = 3.281 ft
1 mi = 1.609 km 1 km = 0.622 mi
table 1.2: Conversion of units of mass
1 lb = 0.4536 kg 1 kg = 2,2046 lb
table 1.3: Conversion of units of mass
1 psi = 68.95 hPa 1 hPa = 0.0145 psi
Note
1 hPa = 1 mbar.
table 1.4: Conversion of units of temperature
°F9
5
---°C32+⋅=°C5
9
---°F32–()⋅=

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2 Digital Congress Network
Next Generation
2.1 Introduction
The Bosch Digital Congress Network Next Generation
(DCN NG) brings the benefits of innovative digital
technology to discussion, conference and congress
systems. Digital signal processing and transmission via a
simple network system not only offers great
improvements in audio quality, but simplifies operation
and installation. The control system has the option of
modern, user-friendly software to set-up and control
conferences, although it is just as easy to run an
operator-free configuration.
2.2 Modular system approach
By simply daisy-chaining the modular units, any
configuration can be put together. The modular
structure of the system means all levels of conferences
can be catered for without any difficulty. Systems can be
expanded by adding more contribution equipment and
introducing PC control with software modules.
2.3 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.
The diagram (see figure 2.1) shows how the ‘building
blocks’ of the system fit together. The Audio
Communication Network (ACN) family of protocol
converter chips are simply connected to the network
cabling carrying the digital signal.
The dedicated logical ICs in combination with
analogue-to-digital and digital-to-analogue converters
convert the digital signal from the system to audio, and
convert the contributor’s audio signal to digital, ready
for protocol conversion by the ACN chip.
2.4 Audio quality
The result of this advanced digital technology is
excellent audio performance with no loss in signal
quality or level during transmission. Subsequently, each
delegate receives an audio signal of consistently high
quality, which makes a significant contribution to
speech intelligibility. DCN NG virtually eliminates
problems associated with analogue systems, such as
background noise, interference, distortion and crosstalk.
2.5 Reduced installation costs
Fast, cost-saving installation is an important benefit of
DCN NG digital technology. A thin, flexible,
twin-coaxial cable carries all the system’s digital signals,
therefore eliminating the need for costly and vulnerable
multi-core cables used in conventional analogue
installations. This twin-coaxial cable can easily be run
through existing ducting and cable conduits. It can
simultaneously carry up to 32 high-quality contribution
channels and 32 high-quality distribution channels.

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figure 2.1: Building blocks of DCN NG
ADC
DAC
DAP
DAC
LBB4112/00
Data Distribution Board
e.g. Audio Matrix/
Remote Interpretation
LBB4402/00
Audio Expander
ACN 1
DAC
Personal
Computer
DAP
LBB4124/00
Channel Selector
e.g. Hall Display
ACN 1 µP
ACN 2 DAP DSP DSP
Control
Panel
µPram
flash
EPROM
DUART
LBB4100/00
Central Control Unit
LBB4120/00
Interpreter Desk

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2.6 Simplified wiring
Gone are the days of complex wiring through bulky
trunking. The system overview (see figure 2.2) shows the
cables used in the system. The DCN cables are used to
transport all signals to all contribution and
interpretation units throughout the system, and can be
‘tapped’ at any desired point to connect extra
contribution units or other equipment, thus giving rise
to a ‘branched-tree’ topology. In this way, future
extensions to the system capacity, such as adding extra
microphone units, do not require alterations to the
existing system cabling. The power is also supplied to all
units via two wires in the same cable. The central
control equipment communicates over an optical fiber
network. This network can also be ‘tapped’ at any point
and therefore brings the same advantages as the DCN
cabling.
Installation is further simplified and speeded up by the
use of splitters and ready-made cables with sturdy,
moulded connectors, thus allowing easy insertion of
contribution equipment at any desired point in the
system cabling. These easy-to-connect accessories are
used for both fixed and portable installations, making
DCN NG a versatile system that can be installed quickly
and efficiently in any conference situation.
figure 2.2: System overview
Delegate Units
DCN
RS232
Optical Fiber
Delegate Units
32 Channels>
<32Ch
annels
Interpreter Units
Central Control Unit
Audio in
Audio Out
Audio Expander
PC/Extended Controls

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2.7 Central control unit
The Central Control Unit (CCU) forms the heart of the
congress management system. The CCU can operate
stand-alone to provide automatic conference control, or
be accessed by an operator via a PC when more
extensive management is required.
2.8 Interpretation equipment
The system offers comprehensive facilities for
simultaneous interpretation and distribution of the
interpretations to conference participants, which allows
it to meet the demands of international, multi-lingual
conferences and congresses.
All interpretation facilities are fully integrated into the
basic system concepts, with the digital distribution of the
interpretations using the same trunk-line cabling as all
other system functions. It is therefore a relatively simply
task to integrate language facilities into existing systems.
The simultaneous interpretation system enables direct
or auto-relay interpretation modes to cater for less
well-known languages. Each interpreter desk has an
output for the normal (primary) language and another
for alternative languages.

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3Glossary
A
C
D
E
F
G
I
ACN1, ACN2
Network protocol chips.
Active unit
A unit that sends data on the uplink to the CCU and
receives data on the downlink from the CCU.
CCU
See: Central Control Unit.
Central control equipment
Category of congress system equipment that is
related to the central control of the system.
Central Control Unit
Piece of equipment that transmits, receives and
processes multi-channel uplink, downlink and control
data.
CMRR
Common mode rejection ratio.
DAP
Digital Audio Processor.
dB
Decibel.
DCE
Data Communication Equipment. Term used in
RS232 communication protocol.
DCN
Digital Congress Systems that enables the central
control unit to communicate with the interpretation
and distribution equipment.
DCN NG
Digital Congress Network Next Generation. Digital
congress system of Bosch Security Systems.
DTE
Data Terminal Equipment. Term used in RS232
communication protocol.
ESD
Electrostatic Discharge. This might damage electronic
components.
Extension cable
Cable that is used to extend DCN cables.
Flush-mounting
Mounting a unit into a tabletop or an armrest of a seat.
GOF
Glass optical fiber. Type of fiber that is used to cover
distances > 50 m in the optical network of the
congress system.
Information display
Display showing information related to the conference
or discussion.
Interlock modes
Pre-programmed settings for use in interpretation
procedures.
Interpretation
Art of interpreting one language into another
language.
Interpretation (simultaneous)
Art of interpreting one language into another language
at the same time.
Interpretation equipment
Category of congress system equipment that is
related to interpretation.
Interpreter
Person who translates orally for people speaking in
different languages.

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L
M
P
T
LCD
Liquid Crystal Display. Type of display.
LED
Light Emitting Diode. Electronic component frequently
used as indicator.
MMP
Processor taking care of the communication and
audio processing on the optical network of the
system.
Passive unit
A unit that only receives data on the downlink. An
unlimited number of these units can be connected to
a system.
PC
Personal Computer.
PCB
Printed Circuit Board.
POF
Plastic Optical Fiber. Type of fiber that is used to
cover distances < 50 m in the optical network of the
congress system.
Tap-off
Network branch.
Tap-off socket
Socket that is used to create a branch in a network
and that regenerates the network signal.
Trunk
Main cable run of a network.
Trunk socket
Socket that is used to loop a unit through in a
network.

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Section 2 - Interpretation Equipment

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