CEBus can also use Powerline communication and is a EIA standard (ummm 709.1 I think). Never used it however, I have been thinking about doing so (for a PIC project naturally). Anyone with experience out there. Reply in private if you prefer (kinda OT). Cheers, Kevin mailto:kfisk@wkpowerlink.com WF AUTOMACAO - A ZNICA COM KITS DIVERSIFICADOS E NACIONAIS wrote: > > Genesys - Ing. en Sistemas wrote: > > > > I can see x-10 is a propietary protocol for comunication using power > > lines.Yhere is another option? > > 485 > > Miguel