NF C93-903-39*NF EN 61300-3-39:2012 光导纤维转接设备和无源部件基本试验和测量规程 第3-39部分:检查和测量 回波损耗测量用直接接触(PC)光连接器基准插头选择
Fibre optic interconnecting devices and passive components - Basic test and measurement procedures - Part 3-39 : examinations and measurements - Physical contact (PC) optical connector reference plug selection for return loss measurements