The transmitter is the central element in the language distribution system. It accepts analogue or digital input, modulates these signals onto carrier waves and transmits these carrier waves to radiators located in the room.
Order information
VIS-VLI700A-4 4 Channels Digital Infrared Transmitter
VIS-VLI700A-8 8 Channels Digital Infrared Transmitter
VIS-VLI700A-16 16 Channels Digital Infrared Transmitter
- Compliant to IEC 61603-7 and IEC 60914
- Compatible with any other IR simultaneous interpretation system compliant to IEC 61603-7
- Digital infrared processor with DQPSK digital modulation/demodulation technology
- Transmitting in 2~8 MHz frequency band eliminates disturbance from high frequency lighting systems
- Channel selection via up/down button, at most 4,8,16 or 32 channels available
- LCD display with channel number, language name, battery and signal status indication
- Number of available channels is always the same as the number of channels in use by the system, eliminating the need to scroll through unused channels
- Adjustable volume
- Unique 270º super wide reception angle, ensuring perfect sound quality even when casually placed
- Audio signal automatically muted when signal is too low, ensuring that the user receives only high quality audio.
- Ergonomically compact and elegant design
- Lightweight and handy receiver in conjunction with single earphone or headphone for easy and comfortable use
- Can be hung over the neck via a nice strap or fit into the shirt pocket
- Freedom of movement within the range of IR power radiator
- No limit to the receiver number within the IR power radiation range
- Works without errors, even in bright sunlight
- Built-in high precision rechargeable circuitry to prolong battery life
- Environmentally-friendly lithium rechargeable battery pack
- No power consumption and auto-off when headphone is disconnected after 5 minutes
Controls and Indicators
Graphic LCD with back-lighting displays status and menu of the system configuration, supporting multi language menu
Four buttons for configuration
Channel active indicators
Interconnections
2 female XLR connectors for external audio inputs to connect auxiliary balanced audio signals such as music, floor language or emergency audio signal
16 audio signal output connectors (phoenix sockets) for output multi-channel audio
16 audio signal input connectors (phoenix sockets) to connect external unbalanced audio input signals
6 BNC connectors for output HF signal to radiator. To each connector, up to 30 radiators can be connected
1 BNC connector for receiving HF signal from another transmitter
Audio-Link Port for connecting to Interpreter Unit(optional firmware VIS-VLI700-FW) or VIS-DCP2000 or VIS-DCP1000 Congress Main Unit
DANTE port for connecting to Dante network for the digital audio(Optional VIS-DANTE module)
Ethernet and RS232 ports for connection to computer
Emergency signal interface: when the public emergency system is active, alarm signal can be fed to all channels automatically
Power supply socket
Technical Specifications
System Specifications
Modulation...............DQPSK, according to IEC 61603-7
Modulation frequency...............2 to 8 MHz Carriers 0 to 5:2 to 6 MHz, according to IEC 61603-7
Frequency response...............20 Hz to 10 kHz (-3dB) at standard quality;
20 Hz to 20 kHz (-3dB) at perfect quality
THD at 1 kHz...............<0.05%
Isolation...............>80 dB
Dynamic range...............>90 dB
Weighted SNR...............>85 dBA
Electrical
Unbalanced audio inputs...............-12 dBV to +12 dBV nominal
Balanced audio inputs...............-6 dBV to +18 dBV nominal
Emergency switch connector ............... 2-PIN 3.81 mm
Phoenix connector, alarm signal control input
Headphone output...............32 Ohm to 2 kOhm
HF input/output...............75 Ohm
Power supply...............AC 100 V - 240 V, 50 Hz / 60 Hz
Power consumption...............Maximum 25 W
Mechanical
Mounting............... Brackets for 19" rack mounting or fixing to a table top; detachable feet for free-standing use on a table top
Dimensions h x w x d (mm) ...............88 × 483 × 266
Weight...............7.5 kg
Color...............Black
Installation Instructions
Audited Supplier 
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