CODE DMX Splitter is special designed for multiply and revise DMX signal. The SDA 4 with 4 outputs and SDA 8 with 8 outputs. Each output with optical isolated. The Splitter suits for any occasions, such as somewhere need to multiply and revise DMX512 signal that have been attenuated because of the long distance transfer, or somewhere need an absolute isolated signal between every input and output. As a result that it can protect the DMX controller from damage that cause by control circuitry, intelligent fixtures or dimmer packs, as well as ensure the DMX controller run safety and the DMX signal transfer normally to each fixture. So that it makes the whole lighting control system more reliable.