Detailed instructions for use are in the User's Guide.
Cable connections for Lowrance LMS-480 Sockets with blue socket nuts, and cable plugs with blue locking collars are NMEA 2000 connection types. The NMEA 0183 Data Cable can transmit NMEA position data to another device. The Main Power Supply Cable provides 12-volt power for the sonar/GPS unit (the white speaker wire is not used). The NMEA 2000 Power Cable supplies 12-volt power to the LGC-2000 GPS antenna module and/or a NMEA 2000 network buss. All unused wires in the 3-way Power/Data Cable should be capped with wire nuts or electrical tape.
Sonar/GPS unit rear view Network socket
Pub. 988-0154-181
SONAR
NETWORK
PWR/DATA
Sonar socket Blue Power/Data socket
LGC-2000 25' Extension Cable
NMEA 0183 Data Cable. Four wires: blue, orange, yellow, shield (bare). Cable label says "RS-232 COMM."
NMEA 2000 Power Cable. Three wires: red (+), black (Â ground), shield (bare, Â ground). Cable label says "NMEA 2000 Power." Used to power the GPS module and/or a NMEA 2000 network buss. SP-BL speed sensor. This is packed with the LMS-480DF and is optional for the LMS-480.
Blue or gray
Gray Blue
60
60-ohm terminator
This figure corrects the drawing on page 35 in the LMS-480 manual, part 988-0151-181. The manual showed the sonar and power/data sockets in the wrong place, and listed the wrong speed sensor model.
Main Power Supply Cable. Cable has no label, but is thickest of the three. Three wires: red (+), black (Â ground), white. White is external speaker wire, not used in these units.
Skimmer transducer with built-in temp sensor Copyright 2004, Lowrance Electronics, Inc. Printed in USA 050504
LGC-2000 GPS antenna module
If sonar/GPS unit is not connected to a powered NMEA 2000 network, you must connect the NMEA 2000 Power Cable to a 12-volt power source in order for the LGC-2000 to work.
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