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General Connections Diagram
Refer to this diagram for component-interconnection reference only. Follow the detailed installation instructions for each component
Item
Description
GHC 10
➊
GHC 10 data cable
➋
NMEA 2000 power
➌
cable
NMEA 2000 network
➍
Drive unit
➎
Drive unit power and
➏
feedback cables
CCU
➐
ECU
➑
ECU power cable
➒
CCU/ECU interconnect
➓
cable
GHP 12 Installation Instructions
➌
➏
➎
➑
POWER
CCU
➒
Important Considerations
In order for the autopilot to turn on, the yellow wire from this cable must be connected to the yellow wire
from the CCU/ECU Interconnect cable, and the black wire from this cable must be connected to the same
ground as the ECU
This cable should only be installed if you are building a NMEA 2000 network. Do not install this cable if
there is an existing NMEA 2000 network on your boat
The NMEA 2000 power cable must be connected to a 9–16 Vdc power source.
The GHC 10 and the CCU must be connected to the NMEA 2000 network using the included T-connectors
(page
12).
If there is not an existing NMEA 2000 network on your boat, you can build one using the supplied cables
and connectors
(page
The drive unit must be installed by an experienced professional
the drive unit power cable cannot be cut or extended.
If you are using the GHP 12 with a non-Garmin drive unit, you must purchase a GHP 12 drive unit power
cable and a GHP 12 rudder feedback cable
Mount the CCU with the cables pointing straight down
The ECU can be mounted in any orientation.
The ECU can be connected to a 12–24 Vdc power source. To extend this cable, use the correct wire gauge
(page
10).
The black wire from the GHC 10 data cable must connect to the same ground as this cable
In order for the autopilot to turn on, the yellow wire from this cable must be connected to the yellow wire
from the GHC 10 data cable.
To extend this cable to reach the ECU, purchase the necessary extensions
The red and blue wires from this cable connect to the alarm
➋
➍
➐
DRIVE
FEEDBACK
(page
12).
13).
(page
➊
➓
(page
13).
(page
9).
9).
(page
10).
(page
(page
11).
(pages
9–14).
(page
12).
4).
7
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