BS EN 61753-071-2-2014 纤维光学互连器件和无源元件. 性能标准. C类非连接器化单模光纤1 x 2和2 x 2空间开关. 受控环境
Fibre optic interconnecting devices and passive components. Performance standard. Non-connectorised single-mode fibre optic 1 x 2 and 2 x 2 spatial switches for category C. Controlled environments