A printed board designing apparatus and method is disclosed by which a printed circuit board which prevents occurrence of crosstalk with regard to various signals of high frequencies can be prevented. The devices are addressable within a logical network operable on a shared physical bus. Preferably, the catalyst is disposed in nanostructures. A solar assembly for inserting into the solar roof truss may include a panel enclosure which has a channel for holding a solar panel, where the panel is installed approximately flush with the roof line.