Lowrance electronic manual Power connections for LCX-20C sonar/GPS unit

power cable when the unit is not in use. When you are not using the unit, you should always shut off power to the power cable, especially when the power cable is disconnected from the unit.

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 #18 gauge wire onto it. The power cable has two wires, red and black. Red is the positive lead, black is negative or ground. (There is also a white wire to power an optional external speaker for some units.) Make sure to attach the in-line fuse holder to the red lead as close to the power source as possible.

For example, if you have to extend the power cable to the battery or power buss, attach one end of the fuse holder directly to the battery or power buss. This will protect both the unit and the power cable in the event of a short. It uses a 3-amp fuse.

To power a NMEA 2000 buss, also connect NMEA 2000 Power cable to the boat's battery.

	External speaker wire
To unit	(not used by this unit)
	Black wire

Optional power off
switch for salt-	12 volt
water installations	battery

Red wire with

3 amp fuse

Data Cable NMEA 2000 Power Cable

Power connections for LCX-20C sonar/GPS unit.

NOTE:

If you're powering a NMEA 2000 buss, you will attach both the NMEA 2000 Power cable and the unit's Power Supply cable to the boat's battery. To attach the NMEA 2000 Power cable, connect the red wire to battery's + and black and shield wires to battery's –.

WARNING:

This product must be independently fused with the enclosed 3-amp fuse (or equivalent), even if you connect to a fused accessory or power buss.

If a malfunction happens inside the unit, extensive damage can occur if the enclosed fuse is not used. As with

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