Lowrance lcx-112c 操作指南

If a malfunction happens inside the unit, extensive damage 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 irreparable and

could even cause harm to the user when not properly fused.
Failure to use a 3-amp fuse will void your warranty.

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 display power cable has two wires, red and black. Red is the positive

(+) lead, black is negative (–) or ground. 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 power bus or

battery, attach one end of the fuse holder directly to the power bus or

battery. This will protect both the unit and the power cable in the event
of a short.
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.

Power Diagram A

Use this method if you are powering the display unit and a GPS

module or the display unit and a NMEA 2000 network.

Shield

Mandatory
network
power-off
switch

Black

Red

Recommended
display unit
power-off switch

To unit

12 volt DC

power source

Data Cable

NMEA 2000
Power Cable

3-amp fuse

Display Unit
Power Cable