scope:

This draft European Standard applies to all electronic equipment for control, regulation, protection, diagnostic, supply, etc. installed on rail vehicles. For the purpose of this draft European Standard, electronic equipment is defined as equipment mainly composed of semiconductor devices and recognized associated components. These components will mainly be mounted on printed boards. Sensors (current, voltage, speed, etc.) and firing unit printed board assemblies for power electronic devices are covered by this standard. Complete firing units and electronic power circuits are covered by EN 61287-1. This draft European Standard covers the conditions of operation, design requirements, documentation, and testing of electronic equipment, as well as basic hardware and software requirements considered necessary for compliant and reliable equipment. Specific requirements related to practices necessary to ensure defined levels of functional safety will be determined in accordance with relevant railway safety standards. Subject to the paragraph above, software is within the scope of this standard until a suitable standard for software on board rolling stock is available. NOTE A standard for software on board rolling stock (except for software for train control and protection) is under development.