A utility control device, such as a light socket, a switch or a plug socket, is designed with universal terminals so that when plugged into a pre-wired utility box (box socket), the terminals will make the proper electrical connections with the premises wiring. Systems and methods are disclosed for arranging...http://www.google.es/patents/US7497273?utm_source=gb-gplus-sharePatente US7497273 - Plug and play utility control modules
