Optical signal - to - noise ratio measurement procedures for dense wavelength - division multiplexed systems 密集波长分区多路复用系统的光学信噪比测量程序
Fibre optic communication subsystem test procedures - part 2 - 9 : digital systems - optical signal - to - noise ratio measurement for dense wavelength - division multiplexed systems 光纤通信子系统试验程序.第2 - 9部分:数字系统.密集型波长区分复用系统光学信噪比的测量
Fibre optic communication subsystem test procedures - part 2 - 9 : digital systems ; optical signal - to - noise ratio measurement for dense wavelength - division multiplexed systems 光纤通信子系统试验程序.第2 - 9部分:密集波长的区分多层系统用光信号对噪音比率测量的数字系统
Fibre optic communication subsystem basic test procedures - test procedures for digital systems - optical signal - to - noise ratio measurement for dense wavelength - division multiplexed systems 光纤通信子系统基本试验程序.数字系统试验规程.密集波长分割复用系统用光学信噪比的测量
Fotp236 - iec 61280 - 2 - 9 - fibre optic communication subsystem test procedures - part 2 - 6 : digital systems - optical signal - to - noise ratio measurement for dense wavelength - division multiplexed systems Fotp236 . iec 61280 - 2 - 9 .纤维光学通信子系统试验过程.第2 - 6部分:数字系统.密集波分多路复用系统的光学信噪比测量