Power Diagram A - Lowrance LGC-3000 Installation Instructions Manual

WARNING:
The display unit must be independently fused with the
enclosed 3-amp fuse (or equivalent), even if you connect
to a fused accessory or power bus. Failure to use a 3-amp
fuse will void your warranty.
Powering Your GPS Module
A NMEA 2000 network bus must be connected to a power source to op-
erate. NMEA 2000 devices, including the LGC-3000 GPS module, draw
their power from the network bus.
The network and any NMEA 2000 devices, including the LGC-
3000 GPS module, will not operate unless the NMEA 2000 net-
work is powered. This is shown in Power Diagram A below. The
NMEA 2000 power cable must be connected to power even if your only
NMEA 2000 device is the GPS module. (A display unit and a GPS mod-
ule form a simple NMEA 2000 network.) However, never connect
multiple power sources to a NMEA 2000 network. If you have a
network that is already powered, see diagram B on page 8.
To display unit
Display Unit
Power Cable
Data Cable
Use this method if you are powering the display unit and NMEA 2000

Power Diagram A

NMEA 2000
Power Cable
3-amp fuse
Recommended
display unit
power-off switch
network.
Mandatory
network
power-off
switch
Shield
7
3-amp fuse
Black
Red
Black
12 volt DC
power source