Garmin Intelliducer Transom Mount Sensor with Depth & Temperature (NMEA 0183 Installation Instructions Manual page 5

Step 3 (NMEA 0183): Connect the Intelliducer to Power and a NMEA
0183-compliant Device
The Transom Mount NMEA 0183 Intelliducer must be connected to power. Use the diagrams to
correctly wire the Intelliducer. In the diagrams, Tx = transmit, and Rx = receive.
You can connect up to three NMEA 0183-compliant devices to receive data from one
Intelliducer.
Transom Mount NMEA 0183 Intelliducer Power/Data Cable
NMEA 0183
Intelliducer
Transom Mount NMEA 0183 Intelliducer Wired to a NMEA 0183-compliant Device
Exceptions:
• If your NMEA 0183-compliant device has only one receiving wire (Rx), connect it to
the gray wire (Tx A) from the Intelliducer, and leave the white/red wire (Tx B) from the
Intelliducer unconnected.
NOTE: The orange (accessory on) wire is used when wiring the Intelliducer to a Garmin
chartplotter or other NMEA 0183 device that has a defined accessory signal wire. If you are wiring
the Intelliducer to a device that does not have an accessory signal wire, the orange wire from the
Intelliducer should be connected to ground.
CAuTION: If you are wiring the Intelliducer to a device that does not have an accessory
signal wire, connect the Intelliducer power wire to the ignition or install an in-line switch. The
Intelliducer can drain the boat battery if it is not switched.
Transom Mount Intelliducer Installation Instructions
Connect the Intelliducer to Power and a NMEA
+
Battery
12 Vdc
Fuse
 A
Red
Black
Orange
Gray
>
White/Red
>
Color
Fuse
Red
 A
Black
Orange
Gray
>
White/Red
>
White
>
White/
Orange
>
-
Power
Ground
ACC On
Rx A(+)
>
Rx B(-)
>
Function
Power
Ground
Acc. On
Tx A(+)
Tx B(-)
Spare
Spare
NMEA 0183-
Compliant
Device
5