Available for encoding, and for setup of the address for each DMX512 decoder module, one-time setup of different address for the DMX512 control system: Available for scence function, and for independent setup of DMX512 start code and value of each channel; Spport transmission of DMX512 testing signal. Applicable to equipment adopting DMX512 protocol for site commissioning by professionals, and to development inspection and system failure removal for computer light, DMX512 control consol and other DMX512 signal equipment.