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Technical Specifications

Updated on Jun 1, 2026

Specifications

Signal Input Voltage-50 volts to +50 volts
Minimum signal amplitudeApprox 1v pk-pk
Input frequency range1 Hz to 20 kHz
Timer24 bit
Timer resolution67 ns
Max Pulse count before reset1 000 000 pulses


Data Output to VBOX

FrequencyHz
Wheel SpeedKm/h or Mph
Scalable pulse count
Fuel Used
Fuel FlowLitres per hour or Gallons per hour
Fuel ConsumptionLitres per 100 km or Miles per Gallon (MPG)
User defined scale and offset for sensor calibration


Connector Assignments

Drawing of the front panel of a Frequency Input Module.

BNC Connections for Channels 1 to 4

ConnectionFunction
Centre PinSignal Input
Outer shieldSignal Ground

LEMO Socket Connections

Connector 1 - CAN/ POWER IN (Lemo 5 PIN)

PINI/OFunction
1I/ODirect connection to Connector 2 pin 1
2I/ODirect connection to Connector 2 pin 2
3I/OCAN High
4I/OCAN Low
5I+12 V Power
ChassisGround

Connector 2 - CAN OUT (Lemo 5 PIN)

PINI/OFunction
1I/ODirect connection to Connector 1 pin 1
2I/ODirect connection to Connector 1 pin 2
3I/OCAN High
4I/OCAN Low
5I+12 V Power
ChassisGround

Connector 3 - RS232 (Lemo 5 PIN)

PINI/OFunction
1OTxD, Serial Data Transmit
2IRxD, Serial Data Receive
3--
4--
5-+12 V Power
ChassisGround


Module Dimensions

Dimensions drawing for Frequency Input Module - top view.
Dimensions drawing for Frequency Input Module - front view.