Digital-to-analog converter / Heading converter

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  • Specifications
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The DAC-109 is designed to convert digital course data received in the NMEA sentences into the synchrosignals required to control analog repeaters and other selsyn-based devices.
The unit may be used as a digital repeater to display the current course data.
  • Overall and mounting dimensions
  • Functional scheme
  • Wiring diagram
Technical specifications
Dimensions 420.8x266x86.5 mm
IP rating IP 22
Storage temperature -55…+70 °С
Operating temperature -20…+55 °С
Weight 6 kg
Electrical characteristics
Power supply voltage 18…32 VDC
Max total power consumption of connected selsyns 250 W
Frequency of output AC voltage 50 Hz / 500 Hz
Galvanic isolation from power mains +
Reverse polarity protection +
Overvoltage protection + (fuse)
Digital inputs
Number of digital inputs 2 (main, reserve)
Supported interfaces RS-232, RS-422/485
Max baud rate 115200 bit/s
Optoisolation +
Supported protocols NMEA 0183 version 1-3
Supported NMEA sentences HDG, HDT, HDM
Maximum number of connected synchro receivers 8
Types of connected analogue repeaters Synchro/Step