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ACU INSTALLATION
Ship Gyrocompass Connection
Connecting the System with a Ship’s Gyrocompass
For satellite tracking, you must connect a ship’s gyrocompass to the antenna system
through the gyrocompass interface on the rear of the ACU. Intellian’s ACU supports
NMEA 0183 and NMEA 2000 gyrocompass inputs. If the ship’s gyrocompass output
uses a different standard, a compass convertor should be installed to supply the
required NMEA input.
NMEA 0183 Gyrocompass Interface Cable (Customer Supplied)
Type: 2 conductors for NMEA 0183
NMEA heading sentence: xx HDT (4800 Baud, 8, N, 1).
If there is no HDT sentence then use HDM sentence instead.
NMEA 2000 heading PGN Number = 127250 (Vessel Heading)
Strip the cable for 5 mm (0.2")
Do not solder the cable
Figure 74. Ship's Gyrocompass Connection
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