Technical data

Integrus Planning | en 17
Bosch Security Systems B.V. Installation and Operation manual IOM-INT | V1.1 | 2010.12
5. Radiation - Up to 8 modulated carrier signals are combined and sent to the IR radiators,
which convert the carrier signals to modulated infra-red light.
In the IR receivers a reverse processing is used to convert the modulated infra-red light to
separate analogue audio channels.
Figure 4.2 Overview of the signal processing (for one carrier)
4.1.3 Quality modes
The Integrus system can transmit audio in four different quality modes:
– Mono, standard quality, maximum 32 channels
– Mono, premium quality, maximum 16 channels
– Stereo, standard quality, maximum 16 channels
– Stereo, premium quality, maximum 8 channels
The standard quality mode uses less bandwidth and can be used for transmitting speech. For
music the premium quality mode gives near CD quality.
4.1.4 Carriers and channels
The Integrus system can transmit up to 8 different carrier signals (depending on the
transmitter type). Each carrier can contain up to 4 different audio channels. The maximum
number of channels per carrier is dependent on the selected quality modes. Stereo signals
use twice as much bandwidth as a mono signals, premium quality uses twice as much
bandwidth as standard quality.
Per carrier a mix of channels with different quality modes is possible, as long as the total
available bandwidth is not exceeded. The table below lists all possible channel combinations
per carrier:
A/D Conversion
& Compression
A/D Conversion
& Compression
Audio
Channel
Audio
Channel
Protocol Creation
& Modulation
4x
Carrier (to IR Radiators)
4x
Channel quality
Mono
Standard
Mono
Premium
Stereo
Standard
Stereo
Premium
Bandwidth
Possible
number
of
channels
per
carrier
4 4 x 10 kHz
2 1 2 x 10 kHz and 1 x 20 kHz
2 1 2 x 10 kHz and 1 x 10 kHz (left)
and 1 x 10 kHz (right)
1 1 1 x 20 kHz and 1 x 10 kHz (left)
and 1 x 10 kHz (right)
2 2 x 10 kHz (left) and 2 x 10 kHz
(right)
2 2 x 20 kHz
1 1 x 20 kHz (left) and 1 x 20 kHz
(right)