1.		Cable networks for television signals, sound signals and interactive services : part 7: system performance: EN 50083 -7/A1: July 2000 / European Commitee for Electrothecnical Standardization Data Publicação: 2000 Tema: Normas
2.		EN 50083 -8 : August 2000: cable networks for television signals, sound signals and interactive services: part 8: electromagnetic compatibility for networks / European Commitee for Electrothecnical Standardization Data Publicação: 2000 Tema: Normas