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Digital I/O

Updated on Apr 15, 2026

You can access the menu by pressing the OK button. Use the Up and Down arrows to navigate through the menu and press the OK button to enter a submenu or change a setting. When you edit a setting, the Up and Down buttons will let you scroll through the available options for that setting and the OK button will confirm your selection. Use the Back button to exit a setting.

You can use this menu to configure the digital input/output settings.

Illustration of a VBOX 3iS displaying the main menu with Digital I/O highlighted.

You can use this menu to configure the digital input/output settings.

Illustration of a VBOX 3iS displaying the main menu with Digital I/O highlighted.


Defines what the digital input will be used for, either a brake trigger or as a track marker.

Enabling this mode allows the Digital Input to be used with a brake trigger. Activation of the trigger will start the brake stop distance measurement, where VBOX 3iS will calculate a Time and Distance for a Brake Trigger to 0 km/h test. 

Illustration of a VBOX 3iS showing the Digital Input screen with Brake Trigger selected.

Enabling this mode allows the Digital Input to be used with a brake trigger. Activation of the trigger will start the brake stop distance measurement, where VBOX 3iS will calculate a Time and Distance for a Brake Trigger to 0 km/h test. 

Illustration of a VBOX 3iS showing the Digital Input screen with Brake Trigger selected.

Track Marker

Enabling this mode allows the Digital Input to be used as a track marker.

You can use the input switch to

  • set a start/ finish line
  • set a separate finish line
  • set a split line
  • clear all virtual lines
  • perform a coldstart

You can find more information here.

Illustration of a VBOX 3iS showing the Digital Input screen with Track Marker selected.

Enabling this mode allows the Digital Input to be used as a track marker.

You can use the input switch to

  • set a start/ finish line
  • set a separate finish line
  • set a split line
  • clear all virtual lines
  • perform a coldstart

You can find more information here.

Illustration of a VBOX 3iS showing the Digital Input screen with Track Marker selected.


Defines the digital output of the Speed Sensor.

Sends a configured number of pulses per metre.

Illustration of a VBOX 3iS showing the Digital Output screen with Speed selected.

Sends a configured number of pulses per metre.

Illustration of a VBOX 3iS showing the Digital Output screen with Speed selected.

Sends a pulse every time the start/finish line is crossed.

Illustration of a VBOX 3iS showing the Digital Output screen with Lap Pulse selected.

Sends a pulse every time the start/finish line is crossed.

Illustration of a VBOX 3iS showing the Digital Output screen with Lap Pulse selected.