PREN 50121-4 : DRAFT 2016

European foreword
Introduction
1 Scope
2 Normative references
3 Terms, definitions and abbreviations
4 Description of location
5 Emission limits for apparatus
6 Immunity
Annex ZZ (informative) - Relationship between this European
         Standard and the essential requirements of
         2014/30/EU [2014 OJ L96] aimed to be covered
Bibliography

Defines limits for emission and immunity and gives performance criteria for signalling and telecommunications (S&T) apparatus (including power supply systems belonging to S&T) which may interfere with other apparatus in the railway environment, or increase the total emissions for the railway environment and so risk causing Electro-Magnetic Interference (EMI) to apparatus outside the railway system.