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Railway applications. Call for aid and communication device. Requirements for heavy rail vehicles

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1 Scope

This document covers heavy rail rolling stock.

This document does not cover urban rail rolling stock.

NOTE 1    EN 17355 covers communication device requirements for urban rail rolling stock.

This document specifies:

  • the functional requirements for a call for aid system and communication device system;

  • the dynamic analysis of the call for aid system.

NOTE 2    “Dynamic analysis” is understood here as a sequence of actions.

NOTE 3    In a formation of vehicles where one complies with this document with one that does not, it is possible that the call for aid system is not fully functional.

NOTE 4    The call for aid system function is separate from the Passenger Alarm System (PAS) function, which is provided to deal with emergency situations. The PAS is described in EN 16334‑1:2014+A1:2022.

NOTE 5    The communication device system can be different from the PAS, but it can share some or all parts of the PAS to achieve its functionalities.

NOTE 6    The PAS is regarded as a safety relevant system whereas the CFA system and communication device system are non-safety relevant aids to passengers.