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NPK Morsvyazavtomatika - Marine Electronics

UNITALK

Digital integrated Command Talk-Back System

  • Description
  • Technical specification
  • Downloads
  • Support
Digital integrated Command Talk-Back System UNITALK ensures duplex, semiduplex, one-way and loudspeaker communication between the system users as well as broadcasting of audio/video programs of various purposes coming from the external devices.
The system is equipped with various user and peripheral devices designed for noisy, dusty or humid environments.
All the user devices are connected to the central system device though two wires in any combinations.
The digital communication underlying the system provides high-quality signal, jamming resistance and much greater capability of the system to configure the links between the users and manage their priorities.
  • Wiring diagram
General characteristics of system
Ingress protection rating IP 22
Storage temperature -55…+75 °С
Operating temperature -25…+55 °С
Electrical characteristics of system
Supply voltage 20…36 / 36…72 VDC
Reverse polarity protection +
Operating characteristics of system
Link type ISDN (combined with supply)
Type of communication duplex, half-duplex
Output power 30 W per channel
Sampling frequency of audio signal 22 kHz
Capacity of audio signal 16 bit
Number of subscribers 8…64
The possibility of expansion by ethernet +
The possibility of connecting of additional remotes +
General characteristics of subscriber devices
Ingress protection rating IP 22 - IP 65
Storage temperature -55…+75 °С
Operating temperature -25…+55 °С
Electrical characteristics of subscriber devices
Supply voltage 36…72 VDC (from ISDN line)
Power consumption not more than 50 W
Reverse polarity protection +
Operating characteristics of subscriber devices
Output power of audio signal 30 W (at 4 Ohms)
Band width 100-11000 Hz
Signal to noise ratio not less than 60 dB
Total harmonic distortion (THD+N) 1-10%
Output power to headphones 150 mW