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VBOX 3i User Guide
Digital Inputs (D IN)
The „D IN‟ connector contains the two digital inputs for the VBOX 3I. Digital input 1 is also referred to as the Brake trigger input. This input is connected to an event
capture input on the GPS engine. This captures precisely the trigger event time (10nS resolution) for use in brake distance calculation. This period of time is called
the trigger event time, and is logged and used to correct the measured brake stop distance to the exact point at which the trigger was pressed.
A hand-held brake trigger is also available to allow the user to record marker events in the VBOX 3I data file.
A remote logging on/off switch is also available for ease of use and when the front panel switch is not accessible.
Page 17 of 46
28/08/2013
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