DP900 Wireless Drag system

Software downloads 

Download Manual -210404

Download Cable pinout

Download USB driver   (cp2104)   required to communicate with wireless box
This zip file contains a lot of stuff as shown below and can be confusing, please just run 

Trackmate Time Slip Printer How to Install

Time Slip Printer Driver 

 Auto Pairing of Racers

this is a paid option

Youtube Video on how to use the Bracket which is for auto pairing of racers

This is an add-on,  You should also watch video to see how names and cars are added.