39
Installing Below Deck Unit (BDU)
6.5.6 Connecting ACU to Ship Gyrocompass
For satellite tracking, connect a gyrocompass used on ship to the antenna system through the
gyrocompass interface of the ACU. Intellian ACU supports NMEA 0183 (GYRO) gyrocompass input.
Figure 23: ACU to Ship Gyrocompass Cable Connection
How to Connect NMEA 0183 Gyrocompass Cable
1. Using a Phillips screwdriver, loosen the two screw terminals by rotating them counterclockwise.
2. Strip wires up to 5 mm (0.2"). Do not solder the cables.
3. Insert conductor of gyro cable to the terminal block. The polarity of the terminal is indicated on the ACU with +
and - marks. After checking the polarity, connect the cables correctly.
Check
+ and - marks on ACU
Conductor
Gyro Cable
4. Fully tighten the screws by rotating them clockwise to clamp the wires securely.
5. Insert the terminal block with gyro cables to the NMEA 0183(GYRO) port of ACU.
Figure 24: NMEA 0183 Gyrocompass Cable Connection
Phillips
Screwdriver
2-position
Terminal Block
Gyro Cable
Insert Terminal
Block to NMEA
0183(GYRO)
Port of ACU
ACU
Ship's Gyro
(Customer supplied)
NMEA 0183(GYRO)
Input