Railway applications. Communication means between safety equipment and man-machine interfaces (MMI)

Railway applications. Communication means between safety equipment and man-machine interfaces (MMI)

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1   Scope

This Technical Report defines, in accordance with the ERTMS/ETCS requirements:
  1. a) for each DMI function to be exchanged to and from the driver, including ETCS, STM:
  • . performances needed;
  • . degraded modes recovering;
  1. b) DMI Safety targets;
  2. c) communication system requirements:
  • . al-time capability;
  • . performances (bandwidth, etc.);
  • . expansion capability;
  • . RAMS;
  • . applicable standards;
  • . degraded modes;
  • . degraded modes management;
  • . interface with other systems;
  • . LCC requirements.
Each item in the list above corresponds to one chapter of the present document.
Figure 1 — Systems concerned by this document
fig_1
This Technical Report does not cover the following items:
  • . Train functions;
  • . STM “Separate DMI” as defined in document [1] regarding DMI equipment that is part of the STM itself;
  • . GSMR EIRENE functions;
  • . Ergonomics;
  • . Use of the ETCS DMI as a terminal server for maintenance purpose.