If your NMEA 0183-compatible device has only one receiving wire (Rx), connect it to the blue wire (Tx/A) from the GHC 10, and leave the white wire (Tx/B) from the GHC 10 unconnected.

NMEA 2000 network

GHC 10

Device>

> >

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+

Battery-

 

 

WIRE

 

 

12 Vdc

 

WIRE

COLOR

 

 

 

 

 

 

 

FUNCTION

 

 

 

 

 

 

 

 

POWER

 

 

 

 

 

 

 

 

NMEA GND

BLUE

 

 

 

 

 

 

 

Rx

WHITE

Not connected

 

BROWN

Tx/A (+)

 

 

 

 

 

 

 

GREEN

 

 

 

 

 

 

 

Tx/B (-)

 

 

 

 

 

 

 

 

 

NMEA 0183-

>Compatible Device

> >

Wiring the GHC 10 to a NMEA 0183 Device with One Receiving Wire

If your NMEA 0183-compatible device has only one transmitting wire (Tx), connect it to the brown wire (Rx/A) from the GHC 10, and connect the green wire (Rx/B) from the GHC 10 to NMEA ground.

NMEA 2000 network

GHC 10

Device

>

>

>

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

+

Battery

-

 

 

 

WIRE

 

 

12 Vdc

 

 

 

WIRE

COLOR

 

 

 

 

 

FUNCTION

 

 

 

 

 

 

 

 

 

POWER

 

 

 

 

 

 

 

 

 

GREEN

 

 

 

 

 

 

 

 

NMEA GND

BLUE

 

 

 

 

 

 

 

 

Rx/A (-)

WHITE

 

 

 

 

 

 

 

 

Rx/B (-)

BROWN

 

 

 

 

 

 

 

 

Tx/A (+)

 

 

 

 

 

 

 

 

 

 

NMEA 0183-

>Compatible Device

>

>

Wiring the GHC 10 to a NMEA 0183 Device with One Transmitting Wire

NOTE: When connecting a NMEA 0183 device with only one transmitting (Tx) line or with only one receiving (Rx) line, the NMEA 2000 bus and the NMEA 0183 device must be connected to a common ground.

Making the Final Power Connections

After all the components are mounted, connected to the hydraulics of your boat, and wired correctly, connect the ECU to the boat battery. Use the checklist provided in the back of this manual to ensure that the preceding installation procedures are complete. Connect the ECU power cable directly to the boat battery if possible. Though it is not recommended, if you connect the power cable to a terminal block or other source, connect it through a 40 A supply.

If you plan to route the ECU through a breaker or a switch near the helm, consider using an appropriately sized relay and control wire rather than extending the ECU power cable.

Notice

Do not remove the in-line fuse holder from the battery cable when connecting to the battery. If you remove the in-line fuse holder, you will void the GHP 10 warranty and possibly damage the GHP 10 autopilot system.

To connect the ECU to the battery:

1.Route the connector-terminated end of the ECU power cable to the ECU, and route the bare-wire end of the ECU power cable to the boat battery. If the wire is not long enough, use the Wire Gauge Table to determine the correct wire gauge for an extended run.

Extended Length

10 ft. (3 m)

15 ft. (4.5 m)

20 ft. (6 m)

25 ft. (7.5 m)

Recommended Wire Gauge

12 AWG (3.31 mm2)

10 AWG (5.26 mm2)

10 AWG (5.26 mm2)

8 AWG (8.36 mm2)

 

Wire Gauge Table

 

 

GHP 10 Marine Autopilot System Installation Instructions

33