Well this is clearly a problem. I consider myself
to be a person
having pretty general experience with technology, and I've never even
heard of this stuff...but it sounds very interesting to me. Perhaps
what is needed is a way to "get the word out". Pictures,
descriptions, educational materials...YOU know about this stuff, but
who else does? I'd love to learn about it.
Contact one of the elevator installers and see if they would sell you
an old relay control system, ripped out of a building undergoing a
rebuild.
--
Will