First off..I'm an Automated Logic guy, I have seen Circon and Disteck once..this time! I got pulled into an abandoned system that has Circon 202 VAV controllers on it with a Distech front end. We were able to get the owner into the front end and get it back up and running, but we have some 202's that are DOA. I was able to get the controllers, but now I need to figure out how to address them and download memory to them. The installing contractor has gone out of buisiness and I'm trying to help hopefully a future customer. Any help would be appreciated!!!