scope:

This European Standard specifies the characteristics of thePassenger Alarm System. The aim of the Passenger Alarm System isto: a) permit passengers in case of emergency situations to informthe driver; b) permit the driver to keep the train moving or tostop the train at a safe location; c) stop the train automatically:1) at a platform, 2) if there is no acknowledgement by the driver.This European Standard covers the Passenger Alarm System (PAS)fitted to the passenger carrying rolling stock and specifies:- thefunctional requirements for an alarm triggered in the driving cab(Clause 6); - the communication channel between the driver andpassengers or on-board staff (6.4); - the dynamic analysis of thePassenger Alarm System (Clause 7); - the requirements for thedegraded modes management (Clause 8); - the safety relatedrequirements (Clause 9); - requirements for the Passenger AlarmDevice and Passenger Alarm Device area (Clause 10). This EuropeanStandard is applicable to rolling stock which are in the field ofthe Directive 2008/57/EC. NOTE 1 Existing Passenger Alarm Systemsmay require modification to work in conjunction with vehicles thatcomply with this standard. NOTE 2 Most of the requirements of UIC541-6 are compliant with this standard. Other communicationssystems named 'communication device for passengers' or 'call foraid' in the CR LOC and PAS TSI [1] respectively "Emergency call" or"Call for assistance" in the TSI PRM [3] are not covered by thisstandard. NOTE 3 prEN 16683, Railway applications - Call for aidand communication device - Requirements covers these aspects.