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Digital Congress Network | Installation and Operating Manual | Chapter 10 - Installation Techniques
10.11 Language Distribution Equipment
10.11.1 Introduction
Distribution of interpreted languages to delegates can be handled using two different methods of
language distribution - Wired and Wireless.
1. Wired
The distribution of interpreted languages through language channels can be handled using the
standard DCN system cabling. Delegates with contribution units fitted with channel selection facilities
can listen to the language channel of their choice. Stand-alone channel selector units type LBB 3524/
xx and LBB 3526/10 are available for use in both portable and fixed installations. In fixed installations
the channel selector units can be installed in to table-tops or armrests.
2. Wireless
For those delegates with no access to a channel selector, an infra-red wireless distribution system can
be used. Using this system infra-red signals carrying language channels are transmitted from wall or
ceiling mounted radiators, and received by delegates using personal infra-red receiver units.
The infra-red language distribution system comprises of an IR transmitter, a Multi-channel Audio
Interface Unit LBB 3423, one or more radiators and personal IR receivers with channel selectors for
selection of the required language channel.
Bosch Security Systems | 04-2003 | 3922 988 43318 en
Integrus digital infra red system
An infra-red system comprises an infra-red transmitter, several radiators and infra-red receivers
carried by delegates. A well balanced installation should be based on sufficient direct radiation
intensity for the area to be covered. Each situation demands its own solution to maintain a high
enough signal-to-noise ratio in order to ensure good clear reception within the conference area.
Optimally positioned radiators will both minimize installation and running costs.
For further detailed information on installing an Integrus digital infra red system, particularly on
positioning radiators and operating the system, refer to the Infra-red Language Distribution Systems
Installation and Operating Instructions manual, Code No. 3122 475 2201x.
FIG 10-25 Integrus digital infra red system
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Language Distribution Equipment
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