Using this Elation Opto 8 - Branch DMX Distributor and Booster is easy. First, connect the device to a power source using the provided power supply. Then, connect your DMX - compatible equipment to the 5 - pin ports. When using, make sure the power supply is stable to avoid malfunctions. For maintenance, keep the device in a dry and clean place. If you notice any issues, check the connections first and then contact customer service if the problem persists.