For mobile or fixed installations, it's hard to imagine these production environments without data networks. Fast digital network systems have now established themselves in the Pro Audio segment, offering the chance to move various types of digital data simultaneously and in parallel. They also offer the chance to drastically extend signal distribution and simplify many processes. This workshop deals with the main options for digital audio and data transmission, starting with basic "point-to-point" links through to further integration in complex IP-based audio and control solutions. The signal world upstream and downstream of d&b system amplifiers is explained to allow the adequate transmission of audio and control data.