Racelogic VBOX User Manual page 24

When this option is enabled the
VBSS will output a 5 V pulse when a
Start/Finish line is crossed. The
duration of the pulse in milliseconds
Lap Pulse can be adjusted by entering a
different value. The polarity of the
pulse can be changed to either a
rising or falling pulse by clicking the
'Polarity' button.
Lateral / Longitudinal Select the range you wish to use
Acceleration from the drop-down menu.
Digital Output
Menu name/
Description/function
button
The speed output is configured by
changing the number of pulses per
Speed metre.
Default = 90 pulse per metre => 25
Hz per km/h.
Selecting this option outputs a
pulse every second, which is
synchronised to the GPS
clock.
GPS Sync Note: This feature is an
optional extra which is not
available by default. A GPS
engine update is required to
allow this to work correctly.
https://en.racelogic.support//Product_Info/Sensors/Single_and_Dual_Antenna_Speed_Sensors/VBOX_Speed_Sensor_User_Guide/
04_-_Speed_Sensor_Configuration
24