We have some info on Smartlite LED Signs. Contact Bob@Fieldserviceamerica for help with their products. It appears that they are not longer in business. I have some photos of how to connect their displays to the Zebra Controller, and how to communicate with the controller using serial short haul modems, wireless serial modems, and lantronix boxes. If you go to their website, it gives you a number to call, but no one seems to call you back. Other portions of their website seem to still function. If you go to http://smartlite.com/softwaresupport.html, some of the website still functions.