Stage-lighting control with DMX512 protocol

Before the computer age, it required quite a number of assistants to control the stage lighting in a theatre. Today, however, even here the computer has proved its usefulness as a tool. With the DMX512 (Digital MultipleX for 512 units) standard, a computer can control the entire lighting system, including ancillary functions such as the colour filters and dimmers. In this setup, a simple interface cable enables the computer to control up to 512 separate lighting units.