BS EN 50411-3-6-2013 用于光纤传递系统的纤维形成体和闭路.产品规格.室外保护环境中使用的多模纤维连接件(Cat U)
Fibre organisers and closures to be used in optical fibre communication systems. Product specifications. Multimode mechanical fibre splice for use in an outdoor protected environment (Cat U)