ČSN EN 16683

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.