Network port on display unit

Double T

 

Connector

Extension cable

120-ohm

terminator

120-ohm terminator

Extension cable

LGC-3000

LGC-3000 and display unit as an expandable NMEA 2000 network.

The diagram has a double T connector with two 120-ohm terminators — one at each end of the connector. It is easy to expand this network by re- moving a terminator from one end of the double T connector, then insert- ing a new T connector or extension cable between the double T connector and terminator (See the NMEA 200 network general information docu- ment that came with your unit for more information).

NMEA 0183 Wiring (Data cable)

To exchange NMEA 0183 data, this unit has one NMEA 0183 version

2.0communication port. Com port one (Com-1) can be used to receive NMEA format GPS data. The com port can also transmit NMEA format GPS data to another device.

The four wires for the com port are combined with the Power Supply cable and NMEA 2000 Power cable to form the power/data cable (shown earlier). Com-1 uses the yellow wire to transmit, the orange wire to receive and the shield wire for signal ground. Your unit does not use the blue wire.

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Lowrance electronic LMS-520C, LMS-525C DF manual Nmea 0183 Wiring Data cable