There are several methods you can use for triggering nonlighting devices. The most common is through Musical Instrument Device Interface (MIDI). By using MIDI Show Control (MSC) or MIDI Notes, you can send specific commands to other devices such as laser controllers and audio equipment. Most automated lighting consoles are capable of sending out MIDI; however, you should check the documentation for your console. Another idea would be to use a DMX relay to turn on/off various devices with a DMX signal. These can be found from several industry manufacturers and are simple to operate, as they behave likae any other fixture on your console.
— Brad Schiller from Feeding the Machines, PLSN December 2007.
