Bosch INTEGRUS Specifications download pdf (Page 4)

The Integrus infra-red (IR) distribution system described

in this data brochure can be used with the Digital

Congress Network (DCN) as well as with an analogue

system such as the CCS 800,which provides a maximum

of 6 languages in combination with up to 12 interpreter

desks.

1.3 Advanced Digital Technology

The Integrus language distribution system incorporates

unique, specially-developed Bosch Ir-Digital technology.

This technology is characterized by a number of features:

•The Integrus conforms to IEC 61603,part 7. This is the

industry standard for digital infra-red transmission for

language distribution.

•The use of the 2-8 MHz frequency band eliminates

disturbance from all types of lighting systems.

•Error correction by means of a Reed Solomon coder,

plus the bit error rate threshold,ensures a high audio

quality.

•The digital transmission protocol used allows additional

information to be sent (e.g. synchronization of the

number of channels in use)

•The application of digital technology results in a very

high sound quality with a signal/noise ratio of 80 dB.

Some of the advantages of this new technology are

described in more detail below.

1.4 Characteristics of Infra-red Distribution

Infra-red radiation is an ideal medium for audio distribu-

tion. It is invisible to the human eye and can carry multi-

ple channels,each with a separate language, over relatively

large distances.And,above all, it is a wireless distribution

system,so conference participants can receive interpreta-

tions without being physically connected to the system.

1.5 Conference Hall Privacy

Conferences can often involve discussion of sensitive

information, where it is important that any audio distri-

bution does not compromise security. As infra-red radia-

tion is unable to pass through opaque structures such as

walls, the congress venue itself acts as a barrier to infra-red

radiation escaping and being overheard.

1.6 Language Distribution in Adjacent Halls

Infra-red systems are ideally-suited for conference centers

with a number of separate halls. Since walls are opaque to

infra-red radiation, there is no interference between sepa-

rate conferences.

1.7 No Interference from Lighting Systems

One of the limitations of traditional infra-red language

distribution systems was interference from lighting. The

problem was particularly acute with newer (fluorescent)

lighting systems, which operate at higher frequencies and

therefore cause more interference. The Integrus system has

completely solved this problem by using a much higher

frequency band – 2 to 8 MHz – for audio distribution.

Freedom from interference from all types of venue light-

ing brings two major advantages: audio quality is greatly

improved,and systems can be used much more easily on a

rental basis, because they will be compatible with all types

of venue lighting.

1.8 Audio Quality

The Integrus system offers greatly improved audio quality.

Better compression techniques and a higher signal-to-

noise ratio means that the received signal is much clearer,

and, as mentioned above, there is no interference from

lighting systems. Greater intelligibility makes the system

less tiring to use over extended periods.Delegates can

therefore maintain their concentration more easily

throughout a long conference session.

1.9 Number of Channels

The Integrus gives the user real flexibility in choosing the

number of required channels. By using a much higher fre-

quency band (2 to 8 MHz) it offers four quality modes:

• Standard-quality mono (for interpretations).

Four channels of this quality can be incorporated in a

single carrier signal.

• Standard quality stereo (for reproduction of music or

presentations).Two channels of this quality can be

incorporated in a single carrier signal.

•Premium-quality mono (with double the bandwidth).

Two channels of this quality can be incorporated in a

single carrier signal.

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