EN 50098-1/A1 [documento electrónico] : customer premises cabling for information technology: part 1: ISDN basic access / European Committee for Electrotechnical Standardization
EN 50173-1 [documento electrónico] : information technology: generic cabling systems: part 1: general requirements and office areas / European Commitee for Electrothecnical Standardization
EN 50346 [documento electrónico] : information technology: cabling installation: testing of installed cabling / European Commitee for Electrothecnical Standardization