
Device installation
Central unit is only mounted in inside of the vehicle, it can not be installed in the engine chamber,
next to the cabin, or in the area of exposure to direct external conditions. Central unit must be hidden
(for example, under the upholstery), as well as protected from moisture exposure. Device must be
fastened in a stable position to avoid random twitches and displacements (suspension on cables is
strictly prohibited). Central unit must be mounted horizontally.
Precise orientation is of particular
importance to flawless operation of the system, since the device is equipped with acceleration sensors
recording the data which directly affects the results obtained. Pinout and cable colors are shown in
figure 1.
Annex 1. Fig. 1. FMS500 Light+ pinout.
OUT2
Orange
OUT1
Orange/black
ADC3
White
IN4
Blue/black
GND
Black
Red
RS232(TX)
Purple
RS232(RX)
Blue
OUT3
Yellow
ADC5
Yellow/black
1-WIRE
Brown
IN5
Grey/black
IN3
Purple/black
IN2/ADC4
White/black
RS485 (B)
Green
RS485 (A)
Green/black