Furuno FI-504 MULTI Operator's Manual page 27

Junction box (option)
The junction box is required when connecting CAN bus network. This
section covers wiring of the junction box. For how to mount the junction
box, see its installation instructions, issued separately.
Fix cable with cable
tie (supplied).
CH3 DROP - CH5 DROP and BACKBONE are socket-and-plug-type ter-
minal blocks. Detach plug to connect wiring to it, by rocking it back and
forth with your fingers. Remove approx. 6 mm of the sheath from the end
of wires and twist wires. Loosen fixing screw in the plug, insert wire into
hole and tighten fixing screw. Set plug to socket.
White
Red
Blue
Black
6mm
How to fabricate cable
Hole for wire
Wire
How to insert wire
CN1
12VDC
CN3 CN4
DROP DROP
12 VDC
FI-501/502/503/504/505/506/507
Drain wire
Sheath
Fixing screw
Twist
CN2
CN5
BACKBONE
DROP
CAN bus
Device
3. INSTALLATION
19