Signalling on low-voltage electrical installations in the frequency range 3khz to 148,5 khz : part 1: general requirements, frequency bands and electromagnetic disturbances: EN 50065 -1: 1991 / European Commitee for Electrothecnical Standardization
EN 50065 -1/A1 : 1992: signalling on low-voltage electrical installations in the frequency range 3khz to 148,5 khz: part 1: general requirements, frequency bands and electromagnetic disturbances: amendment A1 / European Commitee for Electrothecnical Standardization
EN 50065 -1/A3 : 1996: signalling on low-voltage electrical installations in the frequency range 3khz to 148,5 khz: part 1: general requirements, frequency bands and electromagnetic disturbances: amendment A3 / European Commitee for Electrothecnical Standardization
EN 50067 : spezifikation des radio-daten-suystems (RDS) / Europaisches Komitee Fur Elektrotechnische Normung