BTW,

Alain:
MERG is an excellent resource for such things. I'm building a MiniDCC as a base to start testing. (I will have to get back into Model Railroad, so it will have a use after testing). The problem is that it is so well done, no one had needed to write in PBP, they just use it.

Dave:
Thanks for the link to your site. Very nice info, I will mine it further. Maybe tune up my X-10 system.

bo