Navico 2kW, Installation Manual

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58 | Connect to Lowrance Displays
8.2 Lowrance displays radar connection
RIM 300 Installation
The RIM 300 will replace the power cable that came with your display unit. Your RIM 300 has
three cables branching out from the cable plug, which include: radar data cable, display unit
power cable and NMEA 2000 power cable.
Note: You will need to purchase a heading sensor for the Radar Overlay feature to work
properly.
You MUST remove the power cable that came with your unit and replace it with the
RIM 300 to complete this installation.
Even though the RIM 300 is replacing your original power/data cable, you must follow
the same rules, cautions and warnings for powering the display unit and a NMEA 2000
network or LGC-3000 antenna module. These details are described in the display unit
manual and the LGC-3000 instruction sheet. Failure to follow all power connection
instructions and fusing requirements could result in damage to your equipment and
injury to you. The RIM 300 radar data cable is connected to the radar processor.
•
The RIM 300 works from a 12-volt DC battery system. The display unit power cable has
four wires: red, black, blue and green. You will use the red and black wires to power your
display unit. Attach the red wire (+) to an accessory switch or power bus connected to a
12-volt battery. Connect the black ground wire (–) to the battery negative post.
Important: If possible, keep the power cable away from other boat wiring, especially the
engine's wires. This will provide the best isolation from electrical noise. If the cable is not long
enough, splice #16 gauge wire onto it. Make sure to attach the in-line fuse holder to the red
lead as close to the power source as possible.
• The blue and green wires (Com port 2) can be used to exchange data with any NMEA
0183-compatible device. Connect the blue (TX) transmit wire to the receive (RX) wire
from the NMEA 0183 device. Now connect the green (RX) receive wire to the transmit
(TX) wire from the NMEA 0183 device. There is no ground wire, so the NMEA 0183 device
MUST be grounded to the same source as the display unit.
•
If you are powering an NMEA 2000 network or an LGC-3000 GPS antenna through the
head unit, you must connect the NMEA 2000 power cable. Attach the NMEA 2000 red wire
(+) to an accessory switch that is connected to the same 12-volt power source as the
display unit power cable red wire (+). Be sure to use the 3-amp fuse. Connect the black
wire (–) to the negative battery post.
•
Plug the RIM 300 radar data cable into the NMEA/COMMS port on the radar processor
box.
•
After all wires and cables have been connected and all unused wires insulated, insert the
RIM 300 cable plug in the power/data receptacle on the back of your display unit.