DIN EN 61753-041-2-2015 纤维光学互连器件和无源元件. 性能标准. 第041-2部分: C类非连接器化的单模OTDR反射设备. 受控环境 (IEC 61753-041-2-2014); 德文版本EN 61753-041-2-2014
Fibre optic interconnecting devices and passive components - Performance standard - Part 041-2: Non-connectorized single-mode OTDR reflecting device for category C - Controlled environment (IEC 61753-041-2:2014); German version EN 61753-041-2:2014