Digital integrated Command Talk-Back System

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Digital talk-back public address system

— Talk-back public address communication for any navigational area
— The system includes units for humid and/or noisy areas, e.g. open decks
— ISDN communication.

Features and advantages

— Several central units can be combined into a single system and operate together
— Main stations with priorities
— Individual or group selective calling
— Interfacing with external systems (command public address system, VDR, PBX, general alarm system, entertainment sources)
— Direct-pair communication without connection to the central unit
— A user can call at any station using dialing units.

Main stations

— The stations can also be used as substations
— Left and right wing stations allow a ship’s master to keep communication on at a distance from the main control panel, e.g. while docking
— System status indications.

The system

— All stations can be easily connected to the central unit
— High jamming resistance, reliability and perfect communication quality
— Up to 700 m of communication lines
— The system can be installed using current cable passages.
  • Wiring diagram
Technical specifications
Parameter Value
Communication link Digital two-wire, ISDN
Communication type Duplex, half-duplex
Sampling rate of audio signal 8 kHz
Capacity of audio signal 16 bit
Number of subscriber lines Up to 36
Bandwidth 100 – 8000 Hz
Ethernet expanding option +
Interfacing with the external systems (optionally) General alarm system
Command public address system
Voyage data recorder (VDR)
Entertainment source
Power supply voltage 18.5-36.0 VDC
Power consumption Defined by total consumed power of all the units included in the delivery set. For more information about power – see Operating Manual
The central unit protection Galvanic isolation from power mains
Reverse polarity protection
Short circuit/overload protection
The central unit Substations
IP rating IP22 IP22, IP44 IP56
Operating temperature -15°…+55 °C -15°C…+ 55° -40°…+55 °C
Storage temperature -60°C…+ 70°C