Lamp and Horn Connections

The device can be used with a lamp, a horn, or both, to sound or flash an alert when the chartplotter displays a message. This is optional, and the alarm wire is not necessary for the device to function normally. When connecting the device to a lamp or horn, observe these considerations.

  • The alarm circuit switches to a low-voltage state when the alarm sounds.

  • The maximum current is 1 A, and a relay is needed to limit the current from the chartplotter to 1 A.

  • To manually toggle visual and audible alerts, you can install single-pole, single-throw switches.


Wiring diagram with callouts

Item

Description

Callout number one

Power source

Callout number two

Power cable

Callout number three

Horn

Callout number four

Lamp

Callout number five

Relay (1 A coil current)

Callout number six

Toggle switches to enable and disable lamp or horn alerts

Item

Wire Color

Wire Function

Callout number one

Red

Power

Callout number two

Black

Ground

Callout number three

Yellow

Alarm

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