The Digital Automatic Coupling (DAC) integrates mechanical coupling, pneumatic connections, power supply and digital communication into one interoperable solution. By automating traditionally manual train preparation processes, DAC improves safety, reduces operational complexity and enables more efficient train handling across the freight network.

Developed by Dellner and offered through the Wabtec-Dellner Stronger Together partnership, DAC combines proven automatic coupling technology with advanced train systems and digital capabilities to support the future evolution of freight rail operations.

As the digital backbone of future freight trains, DAC supports train-wide connectivity and data exchange, enabling functionalities such as automated brake testing, train integrity monitoring and future automated operating concepts. With a scalable architecture designed for the next generation of freight rail, DAC helps operators increase efficiency, improve asset utilization and prepare for the transition toward digital and highly connected rail operations.

Digital Automatic Coupling for Connected Freight Operations