Fibre organisers and closures to be used in optical fibre communication systems - Product specifications - Part 3-5: Wall outlet; German version EN 50411-3-5:2015— 25 стр.
Fibre optic interconnecting devices and passive components - Performance standard - Part 1: General and guidance (IEC 61753-1:2018 + COR1:2019); German version EN IEC 61753-1:2018 + AC:2019— 68 стр.