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 the LMS-480 series 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 en- closed 3-amp fuse (or equivalent), even if you connect to a fused accessory or power buss.

If a malfunction happens inside the unit, extensive dam- age can occur if the enclosed fuse is not used. As with all electrical devices, this unit could be damaged to a point that it is unrepairable and could even cause harm to the user when not properly fused.

CAUTION:

Do not use this product without a 3-amp fuse wired into the power cable! Failure to use a 3-amp fuse will void your warranty.

This unit has reverse polarity protection. No damage will occur if the power wires are reversed. However, the unit will not work until the wires are attached correctly.

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Lowrance electronic LMS-480M, LMS-480DF manual Power connections for the LMS-480 series sonar/GPS unit