说明：   DMX512数据协议是美国舞台灯光协会（USITT）于1990年发布的一种灯光控制器与灯具设备进行数据传输的标准。它包括电气特性，数据协议，数据格式等方面的内容。
(DMX512 stage lighting data protocol is the American Association (USITT) in 1990 published a lighting controller and lighting equipment for data transmission standards. It includes the electrical characteristics, data protocols, data formats and other aspects.)