Patent ID: 7442068

Claim:
An electrical device operable to communicate with another electrical device, the electrical device comprising: an electrical module configured to communicate between the electrical module and another electrical device; an identification transmitter operatively coupled to the electrical module, the identification transmitter rotatably movable between a first position with respect to the electrical module in which the electrical module is in a non-operative state and a second position with respect to the electrical module in which the electrical module is in an operative state; and an identification pick-up which interacts with the identification transmitter in the second position in order to evaluate information defined by the identification transmitter, wherein the operative state of the electrical module is a function of the position of the identification transmitter, and wherein the defined information is one of a plurality of possible information patterns detectable by the identification pick-up when the electrical module in the operative state; and the identification transmitter is in the form of a plug, and wherein the identification pick-up is in the form of a socket in order to accommodate at least part of the identification transmitter.