Information technology - Generic cabling systems - Part 1: General requirements and office areas; German version EN 50173-1:2002 + Corrigendum January 2003— 114 стр.
Fibre organisers and closures to be used in optical fibre communication systems - Product specifications - Part 2: General and guidance for optical fibre cable joint closures, protected microduct closures, and microduct connectors; German version EN 50411-2:2008— 35 стр.