Using this Studer D21m I/O system is straightforward. First, connect it to the correct power supply as provided. Then, attach the Madi HD Link Card for high - definition data transfer. The fan unit helps keep the system cool during operation, and the air deflector/filter unit protects it from dust. When using, make sure the environment is well - ventilated. For maintenance, regularly check the filter unit and clean it if it gets dirty. If you notice any unusual noises or malfunctions, stop using the system and contact customer support.