Garmin 1204 Radar Detector User Manual


 
GMR 600/1200 Series Installation Instructions 5
To install the cable assembly:
1. Align the notch and locking ring on the power cable to the power connector. Press the 2-pin
power cable to the power connector. Tighten the power-cable locking ring clockwise until it is
rmlysealed..
2. Press the RJ-45 marine network cable to the RJ-45 socket. Tighten the RJ-45 locking ring
clockwiseuntilitisrmlysealed.
3. Route the power and network cables through the front of the radar (Figure 7), or through a
hole drilled through the mounting surface (Figure 8). Avoid excessively bending or twisting the
cables.
4. Install the hatch on the front of the radar.
Figure 7 Figure 8
Connecting the Radar to Power Through the Voltage Converter
Connect the radar power cable (red and black) to the voltage converter output cable (red and black) using the supplied heat-shrink crimp
connectors. After crimping the connections, heat the connectors to shrink the housing for a water resistant t.
If you choose to cut the radar power cable, you must reconnect the in-line fuse holder.
Connect the radar to the water ground of the vessel using an 8 gauge copper cable (not included). Secure the ground wire to the radar housing
using one of the four mounting studs, an M10 nut, and at washer.
Power Wiring Diagram
10–40 Vdc
(20–40 Vdc for
the GMR 1204
and 1206)
+
-
Garmin marine network cable
Radar power cable
GMR 600/1200 series radar
Power converter
To RF ground
To water ground
7.5 A fuse
Power connector
RJ-45 network
cable connector
Power connector
RJ-45 network
cable connector