Stage 24 lighting control consoles are primarily designed to provide the user with an economically priced unit of compact size offering features and capabilities not available in similar units. These consoles are also engineered to provide the user with the ability to expand the scope of a lighting control system without the console becoming obsolete. This important quality was provided by incorporating within Stage 24 units DMX-512 digital outputs and other facilities usually only found in more elaborate consoles. The use of the USITT (1990) DMX-512 protocol, the communication standard supported by all leading manufacturers of lighting equipment, enables consoles and dimming systems to be linked together by means of a common data path. This compatibility ensures that a lighting system can be expanded without making the system infrastructure redundant.