Patent ID: 7289332

Claim:
A system of interconnected electrical devices, each electrical device having a polygon shape and electrical connectors, each said electrical connector having a specified purpose, said system comprising: a first electrical device having a first arrangement of electrical connectors, said first electrical device mounted on a first side of a mounting board; a second electrical device having a second arrangement of electrical connectors differing from said first arrangement, wherein a plurality of said second device's electrical connectors correspond to a plurality of said first device's electrical connectors, said correspondence indicated by having the same specified purpose, said second arrangement being a mirror image to said first arrangement in that said plurality of said second device's electrical connectors are arranged in a manner that is the mirror image of the corresponding connectors on said first electrical device; and a third electrical device having said second arrangement of electrical connectors, said second electrical device mounted adjacent to said first electrical device on the first side of said mounting board, said first device interconnected with said second device by interconnecting a first set of connectors on the surface level of said first side of said mounting board, said first set of connectors comprising one or more of said plurality of said second device's electrical connectors and the corresponding first device's electrical connectors; and said third electrical device mounted on a second side of said mounting board, said third electrical device interconnected with said first electrical device by interconnections through the mounting board and by a second set of connectors, said second set of connectors corresponding with said first set of connectors, wherein said first electrical device has connectors distributed on its underside.