Installation Instructions

GHP 10 Installation Instructions 13
7. Connect the drop cable to the T-connector you added in step 3, and
to the GHC 20.
NOTE: In order for the autopilot to turn on, the yellow wire from
the GHC 20 data cable be connected to the yellow wire from the
CCU/ECU interconnect cable, and the black wire from the GHC 20
data cable must be connected to the same ground as the ECU
(page 12).
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1. Determine where to connect the CCU
to your existing NMEA
2000 backbone
(page 5).
2. Disconnect one side of a NMEA 2000 T-connector from the
network.
3. If necessary, to extend the NMEA 2000 network backbone, connect
a NMEA 2000 backbone extension cable (not included) to the side
of the disconnected T-connector.
4. Add the included T-connector
for the CCU to the NMEA
2000 backbone by connecting it to the side of the disconnected
T-connector or backbone extension cable.
5. Route the included drop cable
to the bottom of the T-connector
added in step 4, and connect it to the T-connector.
If the included drop cable is not long enough, you can use a drop
cable up to 20 ft. (6 m) long (not included).
6. Connect the drop cable to the to the CCU.
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
Notice
You must connect the included NMEA 2000 power cable to the boat
ignition switch, or through another in-line switch. The GHC 20 will
drain your battery if the NMEA 2000 power cable is connected to the
battery directly.
1. Connect the three T-connectors
together by their sides.
+
-
2. Connect included NMEA 2000 power cable
to a 12 Vdc power
source
through a switch.
Connect to the ignition switch
of the boat if possible, or through
an in-line switch (not included).
3. Connect the NMEA 2000 power cable to one of the T-connectors.
4. Connect one of the included NMEA 2000 drop cables
to one of
the T-connectors and to the GHC 20
.
5. Connect the other included NMEA 2000 drop cable to the other
T-connector and to the CCU
.
6. Connect the male and female terminators
to each end of the
combined T-connectors.
NOTE: The GHC 20 must connect to the CCU with the yellow
CCU signal wire in the GHC 20 data cable. The black wire must
connect to ECU ground (page 12).