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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.
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.
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.
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
Recommended Wire Gauge 12 AWG (3.31 mm
GHP 10 Marine Autopilot System Installation Instructions
NMEA 000 network
GHC 10
Device
Wiring the GHC 10 to a nMEA 0183 Device with one Receiving Wire
NMEA 000 network
GHC 10
Device
Wiring the GHC 10 to a nMEA 0183 Device with one transmitting Wire
10 ft. (3 m)
-
+
Battery
WIRE
12 Vdc
CoLoR
BLuE
>
WHItE
Not connected
BRoWn
>
GREEn
>
-
+
Battery
WIRE
12 Vdc
CoLoR
GREEn
BLuE
>
WHItE
>
BRoWn
>
Notice
15 ft. (4.5 m)
) 10 AWG (5.26 mm
2
2
Wire Gauge table
WIRE
FunCtIon
PoWER
nMEA GnD
nMEA 0183-
Rx
>
Compatible
tx/A (+)
>
tx/B (-)
>
WIRE
FunCtIon
PoWER
nMEA GnD
nMEA 0183-
Compatible
Rx/A (-)
>
Rx/B (-)
>
tx/A (+)
>
20 ft. (6 m)
25 ft. (7.5 m)
) 10 AWG (5.26 mm
)
8 AWG (8.36 mm
2
Device
Device
)
2