Lowrance LMS-480 Connection Manual

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.
SP-BL speed sensor.
This is packed with the
LMS-480DF and is
optional for the LMS-480.
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.
Skimmer
built-in temp sensor
 Copyright 2004, Lowrance Electronics, Inc.
Printed in USA 050504
Cable connections for Lowrance LMS-480
Sonar/GPS unit
rear view
Sonar socket
LGC-2000 25'
Extension Cable
NMEA 2000 Power Cable. Three wires:
red (+), black (– ground), shield (bare,
– ground). Cable label says "NMEA
2000 Power." Used to power the GPS
module and/or a NMEA 2000 network
buss.

transducer with
Network socket
SONAR NETWORK
Blue
Gray
Blue
LGC-2000
GPS
antenna
module
Pub. 988-0154-181
PWR/DATA
Power/Data socket
NMEA 0183 Data Cable.
Four wires: blue,
orange, yellow, shield
(bare). Cable label says
"RS-232 COMM."
Blue
or gray
60
60-ohm
terminator
Main Power Supply Cable.
Cable has no label, but is
thickest of the three.
Three wires: red (+), black
(– ground), white. White is
external speaker wire, not
used in these units.
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.