Continuation project of CONNECTA (GA 730539) which targets the implementation and deployment in two laboratory demonstrators (for regional and urban segments) of the following technologies: - Wireless TCMS, including wireless train backbone and wireless consist network - NG-TCN including high safe (SIL4) communication networks to support the drive-by-data concept, including brake-by-wire. - Functional Open Coupling (FOC) - Functional Distribution Framework (FDF) instantiated with two different approaches (modified AUTOSAR and self-implemented on top of specific operating system), together with relevant application profiles - The virtual certification simulatiom framework, with hardware-in-the-loop and remote connectivity to subsystems The goal is to reach TRL5 in most developments.