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metre. For the other parameters, the scale and maximum values can be controlled by setting the maximum frequency
and the angle or acceleration value to which this relates. Please note that the digital outputs do not show the direction of
angles and accelerations, only their magnitudes. Therefore negative angles or accelerations will be shown in the same
way as their positive equivalents.
For analogue outputs, you can set the values relating to the maximum voltage (+5V) and minimum voltage (0 for
Velocity, –5V for all other channels), via the front panel or in the
VBOX Setup
Software. The negative voltage capability
of the analogue outputs allows the direction of angles and accelerations to be output.
Digital Inputs
The DIGITAL I/O socket contains the two digital inputs for the VBOX IISX, which you can access by connecting to
different combinations of the three pins.
The first digital input is most commonly referred to as the brake trigger input. This input is connected to an internal timer
capture module that is able to record an event time precisely for use in brake distance calculation. This period of time is
called the Trigger Event Time and is logged as the value in milliseconds between the last GPS sample and the trigger
event. Typically, this will be connected to a pressure switch placed on the brake pedal. However, we also have a hand-
held brake trigger available to allow the user to record marker events for other purposes.
The second digital input is used to control the logging on the VBOX IISX. You can use a remote logging on/off switch,
both for ease of use and when the front panel switch is not accessible.
https://en.racelogic.support//Product_Info/VBOX_Data_Loggers/VBOX_II/VBOX_IISX_20_Hz_GPS_Data_Logger/
User_Guide%3A_VBOX_IISX_Data_Logger/07_Inputs_and_Outputs_%E2%80%93_VBOX_IISX
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