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Preparing the Cables to Connect to the Sonar Module
Before you can begin the installation, you must check your transducer compatibility.
NOTE: The device does not support water speed wheels.
1 Remove the terminal block lid from the sonar module, using a #2 Phillips screwdriver.
2 Loosen one of the cord grips, and remove the rubber plug.
If necessary, push the plug all the way through, and retrieve it from inside the terminal block area.
NOTE: When connecting two single-element transducers, you should use the transducer cord grip on the left
for a low-frequency transducer and the transducer cord grip on the right for a high-frequency transducer.
3 Feed the transducer cable through the cord grip, and pull the cable into the terminal block area.
NOTE: If your transducer has a connector, cut the cable as close to the connector as possible, before feeding
it through the cord grip. Then, use a wire stripper to remove about 90 mm (3
and foil shield, and 6 mm (
recommended.
Connecting the Wires to the Terminal Block
Before you connect the wires, consult the wiring diagrams
proper wiring configuration for your transducer and the wiring tables
for specific examples of Garmin wire colors.
1 Connect the uninsulated section of each wire to the terminal block using a
NOTE: When connecting two single-element transducers, you must connect the second transducer to the
duplicate set of connections on the opposite side of the terminal block.
TIP: The primary transducer cable wire housing covers the wiring bundles. To identify the wiring groups in
the bundles more easily, you can remove up to an inch of the cable housing.
2 If the transducer has a separate outer shield bare wire, connect it to one of the two ground posts under the
terminal block using a #2 Phillips screwdriver.
Connecting a Transducer for Manual Configuration
While most transducer models are detected and configured automatically, in some cases you may need to
configure a transducer manually.
1 Connect a temperature wire to the TEMP terminal, or install a jumper between the TEMP and GRND
terminals.
2 Connect the remaining wires according to the wire color table
3 After the sonar module is powered on and connected to the network, configure the transducer using a
connected chartplotter
Securing the Wire Connections
1 When the wire connections are secure, use a 1 in. (24 mm) wrench to tighten the cord grip nut around the
transducer cable.
When tightened correctly, you should not be able to pull the transducer cable out of the housing.
2 Tighten any unused cord grip to form a seal around the rubber plug.
3 Reinstall the terminal block lid.
NOTE: The sonar module does not operate when the lid is removed.
4
1
/
in.) of the insulation from each internal wire. Tinning the stripped wires is
4
(Manually Configuring a Transducer,
1
/
in.) of the outer cable jacket
2
(Transducer Wiring Diagrams,
(Transducer Wire Color Tables,
1
/
in (3 mm) flat screwdriver.
8
(Transducer Wire Color Tables,
page 6).
page 7) to select the
page 9)
page 9).
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