Digital Congress Network Next Generation; Introduction; Modular System Approach; Advanced Digital Technology - Bosch DCN Next Generation Installation And User Instructions Manual

DCN NG | Installation and User Instructions | Section 1 | Introduction
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.
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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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