Garmin GSD 20 Installation Manual - Page 5

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Installing the GSD 20

The GSD 20 must be properly installed according to the following

instructions to get the best possible performance. To complete the

installation, you'll need the appropriate fasteners. When in doubt,

seek professional assistance.

The module should be mounted in an out of the way location

that is preferably dry and well ventilated. Avoid mounting the module

where it will be submerged in liquids or exposed to extreme tem-

peratures. If you wish to view the blink codes (see page 7), be sure to

mount the module so that the LED is visible.

To install the GSD 20 module:

1. Once the location is chosen, place the unit in the desired position.

Be sure to allow enough clearance for attaching the cables. Using

the module as a template, mark the location of the four mounting

holes. If needed, additional mounting holes may be drilled in the

side mounting ﬂ anges of the module.

2. Attach the GSD 20 to the mounting location using the appropriate

fasteners.

3. Mount the transducer according to the instructions provided with

the transducer.

4. Route the cables to the mounting location of the display unit. Use

the appropriate tie-wraps, fasteners and sealant to secure the

cable along the route and through any bulkhead or deck.

5. Once the GSD 20 module has been installed, connect the power/

data and transducer cables to the appropriate receptacle on the

module.

6. Refer to the following wiring diagrams for connecting the GSD 20

to a compatible Garmin display unit.

Installation

Features

You may extend the wiring of the GSD 20

power/data cable up to 100' (30m) total

length. Use 24 AWG, 4 conductor shielded

cable for data cable and 18 AWG for

power. For extending transducer the cable,

extensions are available through your

Garmin dealer.