
Analogue and Digital Outputs
The AD1 and AD2 connectors each have 1 analogue voltage and 1 digital output. The digital output on connector AD2 is
a frequency/pulse output corresponding to velocity. The pulse per meter range is adjustable in software. The digital
output on connector AD1 is a simple on/off state output. This digital output can be associated with any of the data
channels being logged by the VBOX. A threshold level can be set for the selected data channel where a true condition
gives a 5 V output and a false condition gives a 0 V.
i.e. Data channel –Speed, threshold 40 km/h. When speed is >40 output = 5 V, speed, 40 output = 0 V.
A hysteresis and tolerance value can also be associated to this condition.
The default function of this digital output is to indicate the current logging status of the VBOX.
The analogue outputs on connectors AD1 and AD2 are both user configurable. For example, analogue output 1 could be
configured to output velocity while analogue output 2 might be configured to output lateral acceleration. The voltage
range of both analogue outputs is 0 to 5 V DC.
https://en.racelogic.support//Product_Info/VBOX_Data_Loggers/VBOX_3i_Range/VBOX_3i_User_Guide_(All_Variants)/09_-
_VB3i_Analogue_and_Digital_I%2F%2FO
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