Suggests harmonisation for communication between the DMIs and the train systems on the driver's desk.

In accordance with the ERTMS/ETCS specifications, Subset 121, UIC 612 leaflet, ERA ERTMS-0155603.3.0 document, EN50126 and EN61375 series requirements, this Technical Report describes the Train Display System (TDS) in the driver’s cab, and the link between the TDS/TDC and some of its interfaces (Blue box and blue links only): [Image removed.] The scope of the Train Display System (TDS) thus includes: Functions, except functions defined in the ETCS Subset 121. These functions describe exchanges between TDC and the connected display systems; Performance allocation (RAMS included as per EN50126 ): for each function defined in item a), defining the performances needed and the degraded modes recovering; Needs for certification: description of special requirements to avoid ETCS recertification after other display system modification; Train Display Controller (TDC): Redundancy management; Architecture; For each system connected (except those defined in ETCS Subset 121): the Functional Interface Specification (FIS). This Technical Report excludes the following items: Communication protocols (e.g. EN61375 series); Ergonomic aspects; Interface with ETCS (Subset 121); Train functions; GSMR EIRENE functions; Use of the displays as terminals for maintenance purpose.