Control and communication system for components of electrical apparatus

摘要

Electrical apparatus, such as a printed circuit board for a broadcast data receiver, is provided. The apparatus includes a number of components (4; 12) which are required to be interconnected in a manner to allow the transmission of data therebetween. At least two of these components (4; 12) are provided with communication means to allow communication of data and the communication means are in the form of a light emitter and receiver.