Fibre optic connector optical interfaces - Part 2-1: Optical interface standard single mode non-angled physically contacting fibres (IEC 61755-2-1:2006); German version EN 61755-2-1:2006
光纤连接器光学接口.第2-1部分:光学接口标准单模非角度物理接触光纤(IEC 61755-2-1-2006);德文版EN 61755-2-1:2006