you are one of the great ones for helping me out in this. The client wants me to stop my research for now until he can fly back to Missouri and talk to me face to face. I can show him where I will now search for embedded solutions. So far, I just get laughed at when I mention double throw relays, and I cannot find any off the shelf boxes that have them.

[link|http://www.google.com/search?as_q=double+throw+relay+linux+driver&num=10&hl=en&ie=UTF-8&oe=UTF-8&btnG=Google+Search&as_epq=double+throw+relay&as_oq=linux&as_eq=&lr=&as_ft=i&as_filetype=&as_qdr=all&as_occt=any&as_dt=i&as_sitesearch=&safe=images|A Google Search] come up with this for Linux drivers for accessing Double Throw Relays. All the results are in German, so I have no idea what they say. Or if a Linux driver already exists, or if this is something else. You know how Google can return bogus results on stuff that doesn't even come close to the search terms sometimes. I hate Google, but I couldn't get any results on any other search engine in this case.