Lamp Or Horn Connections - Garmin GPSMAP 8000 Series Installation Instructions Manual

Item Garmin Wire Function
Power
Power ground
Data ground
TxA (+)
TxB (-)
NMEA 0183-Compliant Device With a Single Transmitting Wire Connected to Send Data
Item Description
12 Vdc power source
Power cable
NMEA 0183-compliant device
NMEA 0183 cable
Item Garmin Wire Function
Power
Power ground
Data ground
RxB (-)
RxA (+)

Lamp or 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.
GPSMAP 8000 Series Installation Instructions
Garmin Wire Color
Red
Black
Black
Gray
Pink
Garmin Wire Color
Red
Black
Black
Orange/white
White
• The maximum current is 100 mA, and a relay is needed to
limit the current from the chartplotter to 100 mA.
• To toggle visual and audible alerts manually, you can install
single-pole, single-throw switches.
NMEA 0183 Device Wire Function
Power
Power ground
Data ground
RxA
N/A
NMEA 0183 Device Wire Function
Power
Power ground
Data ground
N/A
TxA (+)
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