To connect the wiring harness to a NMEA 0183 device:

1.For Garmin devices, the ground (black) wires serve as NMEA 0183 ground and must be attached together or on the same terminal as the

NMEA 0183 ground on your NMEA 0183 device. Refer to the wiring diagram of your NMEA 0183 device for wire identification.

2.Connect the blue (NMEA 0183 port 1 out) wire from the GPS 152H wiring harness to the NMEA 0183 in (or Rx/A +) wire on the wiring harness of the NMEA 0183 device, and the brown (NMEA 0183 port 1 in) wire to the NMEA out (or Tx/A +) wire on the wiring harness of the NMEA 0183 device.

3.Repeat step 2 using the blue and white wires for an additional NMEA 0183 device.

4.Set the serial port(s) on the GPS 152H to use NMEA 0183 data. See the GPS 152H Owner’s Manual for more information.

Connecting the Wiring Harness to an Optional Horn, Lamp, or Both

The GPS 152H device can be used with a lamp, a horn, or both, to sound or flash an alert when the device displays a message. The alarm does not need to be wired for the GPS 152H to function. The alarm circuit switches to a low-voltage state when the alarm sounds. It is necessary to install a relay that limits the current from the device to 100 mA. To manually toggle visual and audible alerts, install single-pole, single-throw switches.

 

 

+

-

 

 

 

Battery

 

Fuse

Wire color

10–40 Vdc

 

 

 

 

1.5 A

Red

 

 

 

 

GPS 152H device

 

Black (ground)

 

 

 

 

Lamp

 

Relay

 

Yellow (alarm)

100 mA max

Horn

 

coil current

 

Wiring a GPS 152H Device to a Horn, a Lamp, or Both© 2010 Garmin Ltd. or its subsidiaries

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GPS 152H Installation Instructions

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