Honeywell Thor vm3 User Manual page 78

MOTION
CIRCUITRY
To -Vo on vehicle,
i.e. Negative
battery terminal
Note: The black and gray wire colors in the illustration only apply to the optional Honeywell Screen Blanking Box
Cable, VM1080CABLE. The wire colors may be different in a user-supplied cable.
Screen Blanking with Switch
In applications where it is impractical to use the screen blanking box due to vehicle voltage or lack of a motion
sensing signal, screen blanking can be controlled via a user supplied switch or relay that provides an electrical
conductive connection on vehicle motion.
Pins 7 and 8 must be connected as shown in the illustration above. No other pins are to be connected.
4 - 34
3A fuse
To pins 7 and 8
of COM1 or COM2
port on dock
To pin 7 of COM1 or COM2
To pin 8 of COM1 or COM2