To use the Aviom D800 A-Net Distributor, first connect it to the correct power supply that comes with it. Make sure the power source is stable. Once powered on, you can connect it to your audio network as per your setup. When handling the distributor, avoid dropping it or exposing it to excessive heat or moisture. For maintenance, keep it clean by gently wiping it with a dry cloth. If there are any signs of damage or malfunction, stop using it immediately and contact customer support.