Connecting Directly To The Unit; Connecting To A Nmea 2000 Network - Lowrance GlobalMap 5500C Operation Instructions Manual

You need to select an antenna installation location that has a clear, un-
obstructed view of the sky. After the module is installed, connect it to the
unit. The LGC-2000 can communicate with your GPS unit either directly
(using the supplied extension cable) or through a NMEA 2000
NOTE
See the module's instruction sheet, publication part number 988-
0147-981, for complete installation instructions.
In an automobile, you may achieve good results by simply placing the
external antenna on the top of the dash, at the base of the windshield. A
piece of the rubber non-skid shelf liner material available in recreational
vehicle supply stores will help hold the antenna in place. This may not
work well if you have a cab-over design pickup truck camper or motor
home. If dashboard reception is poor, simply relocate the antenna mod-
ule elsewhere on the vehicle for a clearer view of the sky.

Connecting Directly to the Unit

After the module is installed, attach it to the end of the Y-adapter ex-
tension cable as shown in the following diagram. To connect it to the
unit, insert the extension cable's splitter plug into the Network socket
on the back of the unit and your system is ready to use.
Splitter plug
To unit
NOTE:
The extension cable's shorter branch will have a 60-ohm terminator at-
tached to it. Do not remove this terminator. When you're not con-
necting to a NMEA 2000 buss, you must leave the terminator con-
nected to this socket for your antenna/receiver to function correctly.

Connecting to a NMEA 2000 Network

The LGC-2000 can be connected to a NMEA 2000 buss, providing GPS
information to any Lowrance GPS units attached to the buss. Contact LEI
Extras (look inside back cover for accessory ordering information) for a
NMEA 2000 buss adapter cable if you would like to do this.
There are two ways to connect the antenna to a NMEA 2000 network
port. One method (shown in the following image) is to use the extension
cable's Y-adapter to connect both the antenna and the unit to the same
network port. To do this, simply remove the 60-ohm terminator shown in
25' Y-adapter
extension cable
LGC-2000 direct connection to GPS unit.
60-ohm
terminator
12

network.
LGC-2000