Not long ago I was running 4 locations with Datatrax. . Actually replaced DRB with Datatrax. at some locations when DRB told me they would no longer support the version I had. The main Boxes were all a light Tan (Almost a putty color like all the old computers) in color. One, from the 980's had LED readouts and the others were LCD. Most of the relay boxes were the same color but had to but a few that were white when I replaced the DRBs. Conveyor was 3'6" roller spacing and with cars at about 6 foot pacing there would be one rolling off every 12-15 seconds. A local guy I knew a long time managed a Delta sonic and told me they hit over 200CPH. Thought it was baloney until I went to see it.