Baggage handling systems in international airports can span up to 30 km or more in length. Hundreds of actuators and thousands of sensors are installed along the route to detect, identify, check, and guide luggage from the check-in desk to the departure gate. System expansions often need to be made during the airport's normal operations. Additionally, the specific control systems and fieldbus systems used for such large-scale installations differ from continent to continent. In these kinds of applications, AS-Interface excels as an installation technology. The connection technology itself is relatively simple; there are no restrictions in terms of topology or network cable length. Safety and standard (nonsecure) signals, as well as power, are transmitted along the same flat cable. Moreover, there is no need to route redundant lines – a fact that results in significant cost savings potential for large-scale installations.