Information technology : cabling installation: part 1: specification and quality assurance: DRAFT pr EN 50174-1: June 1998 / European Commitee for Electrothecnical Standardization
Information technology : cabling installation: part 2: installation planning and practices inside buildings: DRAFT pr EN 50174-2: June 1998 / European Commitee for Electrothecnical Standardization
prEN 50203 : projet définitif installation automatique des canaux (ACI) / Comité Européen de Normalisation Electrotechnique
EN 50221 : common interface specification for conditional access and other digital video broadcasting decoder applications / European Commitee for Electrothecnical Standardization