Lowrance X125 Connection Manual

Cable connections for Lowrance X125 and X126DF, March 25, 2004
Sockets with blue socket nuts,
and cable plugs with blue
locking collars are NMEA 2000
connection types. However, the
X125 and X126DF do not have a
NMEA 2000 network socket or a
communications port. These
units cannot connect to a NMEA
2000 network and cannot
transmit NMEA 0183 data. The
NMEA 0183 data cable, the
NMEA 2000 power cable and
the white speaker wire are
unused and should be capped
with wire nuts or electrical tape.
SP-BL speed sensor.
This is packed with the
X126DF and is optional
for the X125.
Skimmer
built-in temp sensor
This figure corrects the drawings on pages 21 and 25 in the X125/X126DF manual, part 988-0151-171. It is a
large-view supplement to the manual's Addendum I, part 988-0151-201.
Sonar unit
rear view
Sonar socket

transducer with
SONAR
Gray
Blue
PWR/DATA
Power/Data socket
Blue
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,
shield (bare).
Cable label
says "NMEA
2000 Power."
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.