VISSONIC Electronics Limited www.vissonic.com
Chapter 2 Digital Infrared Transmitter
14.
Flexible configuration of channels and
2.1
Overview
VIS-VLI700A-4/-8/-16 IR transmitter is the main
part of the digital IR distribution system. To transfer
the simulation audio, compress code, full digital
DQPSK transfer. The system can send 16 kinds of
languages. IR transmitter can be installed on 19-inch
standard rack, the easy storage and safekeeping.
2.2
Features
1.
Compliant to IEC 61603-7 and IEC 60914
2.
Compatible with any other IR simultaneous
interpretation system compliant to IEC 61603-
7
3.
DQPSK digital modulation/demodulation
technology
4.
Transmitting in 2~8 MHz frequency band
eliminates disturbance from high frequency
lighting systems
5.
Capable of distributing a maximum of 4,8,16 or
32 audio channels
6.
Auxiliary mode for distribution of music to all
channels during a break
7.
Slave mode for distribution of signals from
another transmitter allows multiple rooms to be
used
8.
Radiator and system status indication via
display and indicators
9.
Each transmitter can be assigned a unique name
by the installer for easy identification in a multi-
transmitter system
10.
Automatic distribution of emergency
messages to all channels
11.
Automatic synchronization to the number of
channels in use by the CLEACON system
12.
Each audio channel can be assigned a
language name for easy identification
13.
Adjustable sensitivity for each input to enable
fine tuning of audio levels, support levels
indicating of audio input
channel quality modes: Mono, standard quality,
maximum 16 channels Mono, perfect quality,
maximum 8 channels Stereo,
standard quality, maximum 8 channels Stereo, perfect
quality, maximum 4 channel
15.
With 16 interpretation output channels for
recording
16.
Universal mains power facility allows
worldwide use
17.
Conference hall privacy; the congress venue
itself acts as a barrier to infrared signals escaping
and being overheard, as infrared is unable to pass
through opaque objects such as walls
18.
Suitable for various kinds
(small/medium/large international) of
conference halls and outdoor venues
19.
Support the interpreter unit connection
directly(by optional firmware
VIS-VLI700-FW)
20.
Support 16 channel analogue audio input and 16
channels analogue audio output.
21.
Support 2 transmitters can work as master and
slaver mode for 32 channel language
distribution
22.
Support optional Dante port for connecting to
Dante network
2.3
Installation
The system controllers are made of metal and
work with many other equipments.
Furthermore, the system controller can also be
installed on standard 19’’ cabinet, as shown in the
following figure.
Digital IR Language Distribution System User Manual
6
