12
The Power/Data cable for this unit.
Depending on your configuration, you may not use all of these wires.
The following segments include instructions for installing all the wires
that you will use with this unit.
CAUTION:
All of the wires in the power/data cable have bare ends for easier
installation. The bare ends on any unused wires could cause an
electrical short if left exposed. To prevent this, you should cover the
individual wire ends — either by capping them with wire nuts or
wrapping them with electrical tape. (You should cut off the bare
wire before taping off the ends.)
Powering a NMEA-2000 Buss
(NMEA-2000 Power cable)
A NMEA-2000 buss must be connected to a power source to operate. If
you have a pre-existing NMEA-2000 installation, it may already be
connected to another power source.
If
your NMEA-2000 buss is already
powered, you can ignore the NMEA-2000 Power cable.
Never attach
two power sources to a single NMEA-2000 buss
.
If you do need to power your NMEA-2000 buss, attach the NMEA-2000
Power cable to your boat's battery just as indicated in the following
segment for connecting your unit's Power Supply cable. The NMEA-
2000 Power cable's red wire should be attached (with provided 3-amp
fuse) to the boat battery's positive terminal, and the NMEA-2000 Power
cable's black and shield wires should both be attached to the battery's
negative terminal.
NOTE:
If the NMEA-2000 buss draws power directly from the boat's battery,
the LGC-2000 will remain on (drawing power) all the time. The LGC-
2000's current draw is very small and shouldn't decrease the boat's
storage battery life, but if this small draw is a concern, you can in-
stall a switch between the NMEA-2000 buss and the battery.
To unit
Data Cable wires: blue,
yellow, orange and shield
Power Supply wires:
red, black and white
NMEA-2000 Power wires:
red, black and shield
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