VBOX Speed Sensors (25Hz v1/100Hz v1-4) - Quick Start Guide

Mounting

The VBOX Speed Sensor should be securely mounted inside the vehicle, level with the ground. There are holes in the ground plate that can be used to fasten the Speed Sensor to a suitable location in the vehicle. Make sure that the surface with the LEDs and pin information is up. 

Hardware 

Connect the serial plug to the computer's serial port with an RLCAB093 loom – you can also do this via a serial > USB converter if required.

Note: The RLCAB093 loom is not supplied with the VBOX Speed Sensor, but is available to purchase separately.

Power

The VBOX Speed Sensor can be powered from a wide range of voltage sources including a Vehicle Cigar adapter, a Racelogic Li-ion battery pack or other sources provided by the user. The maximum operating voltage input must not exceed 30 V DC. Failure to observe this limit could result in damage to the speed sensor.

Note: There is no power cable supplied with the VBOX Speed Sensor, but this is available to purchase separately.

Note: During extended use, the Speed Sensor's case may become hot. This is normal, however, it is good practice to mount the VBOX Speed Sensor in a position where it has sufficient airflow around the case.

GPS Coldstart

You may need to perform a GPS Coldstart when:

• The GPS/GNSS engine has locked up.
• The Speed Sensor is struggling to acquire satellite lock
   

A GPS coldstart forces the GPS engine to reset its downloaded almanac of current satellite positions. This can be useful if the Speed Sensor is having trouble locking onto satellites, which typically occurs if the unit has not been used for several weeks or if it was last used a long distance (over one thousand miles) away from the current location.
 

After performing a GPS coldstart, leave the Speed Sensor powered up in a static location where the antenna has an unobstructed view of the skies until the ‘GPS’ LED becomes solid green.