Lowrance electronic LCX-17M - Manual (Page 40)

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LGC-2000 direct connection to GPS unit.
NOTE:
The extension cable’s shorter branch will have a 60-ohm terminator
attached to it. Do not remove this terminator. When you're not
connecting to a NMEA 2000 buss, you must leave the terminator
connected 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
the previous image and attach the NMEA 2000 buss adapter cable to the
shorter branch of the extension cable's Y-adapter. Connect the NMEA
2000 buss adapter cable's other end to an available network port.
LGC-2000 and GPS unit connection to NMEA 2000 buss.
You can also attach the antenna to a remote port on the network, and
pass position information along the network. To do this, simply attach the
LGC-2000's connector to one end of the buss adapter cable and attach the
other to an available port on the NMEA 2000 buss, as shown in the
following image. (You will have to use a similar adapter cable to connect
the GPS unit to the NMEA buss as described later in this section.)
25' Y-adapter
extension cable
60-ohm
terminator
LGC-2000
To unit
Splitter plug
LGC-2000
To NMEA 2000
network port
25' Y-adapter
extension cable
To unit