Preparing the Cable
1 Remove the terminal block lid from the sounder.
2 Select an option:
• Feed a sensor cable through the small cord grip , and pull the cable into the terminal block area.
• Feed a transducer cable through one of the large cord grips on the housing, and pull the cable into the
terminal block area.
NOTE: Do not tighten the cord grip.
Connecting the Wires to the Terminal Block
Before you connect the wires, consult the wiring diagrams (
Transducer Wiring Diagrams, page 6
) to select the
proper wiring configuration for your transducer and the wiring tables (
Transducer Wire Color Tables, page 11
for specific examples of Garmin wire colors.
1 Connect the uninsulated section of each wire to the terminal block using a 3 mm flat screwdriver.
2 Connect the bare shield wire to one of the two ground posts under the terminal block using a #2 Phillips
screwdriver.
Securing the Wire Connections
1 After connecting the wires, use a 24 mm (1 in.) wrench to tighten the nut around the transducer cable.
When tightened correctly, you should not be able to pull the transducer cable out of the housing.
2 Insert a cord grip plug into each unused cord grip.
3 Replace and secure the terminal block lid on the sounder with a #2 Phillips screwdriver.
NOTE: The sounder does not operate when the lid is removed.
4
GSD 26 Installation Instructions
