Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-20: Examinations and measurements; Directivity of fibre optic branching devices (IEC 61300-3-20:2001); German version EN 61300-3-20:2001
纤维光学互连器件和无源元件.基本试验和测量程序.第3-20部分:检查和测量;光纤分支器件的方向性(IEC 61300-3-20-2001);德文版EN 61300-3-20:2001