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NSTALLATION

NSTRUCTIONS

Blink Codes

Once the unit is installed, it switches on when the display unit is powered on (or the GSD remote power line is pulled low, with power applied).

The two-color (Green/Red) LED on the GSD 20 indicates the current operational status of the module. Codes are:

Green blinking, on for 1 second, off for 1/2 second (slow blink)

Green blinking, on for 1/2 second, off for 1/4 second (fast blink)

Red blinking, on for 1 second, off for 1/2 second (slow blink)

Solid Red (no blink)

Red blinking, on for 1/10 second, off for 1/10 second

(very fast blink)

Code

GSD 20 is servicing one directly wired connection and the display

device is operating properly.

The user should see sonar data on the display unit.

GSD 20 is servicing two dirctly wired connections and the two display

devices are operating properly.

The user should see sonar data on both display units.

GSD 20 is powered on but is waiting to connect to a display device. In

this state, the GSD 20 does not transmit any sonar signals and is not

sending out any sonar information to display units. If a display unit is

connected and this code persists, check the wiring.

Software failure - Call Garmin Product Support. If the cause is a

software error, the display unit can show the error. Power must be

cycled to clear the error.

System alarm. The display device gives a message indicating the type

of failure. After the alarm condition is ﬁxed, power must be cycled on

the GSD 20 to clear the alarm.

GSD 20 Sonar Module

Status