BS EN 61280-2-9. Fibre optic communication subsystem test procedures. Part 2-9. Digital systems. Optical signal-to-noise ratio measurement for dense wavelength-division multiplexed systems
英国标准EN 61280-2-9 光纤通信子系统测试程序 第2-9部分 数字系统 密集波分复用系统的光信噪比测量
Cross References:IEC 61290-3-1IEC 62129ITU-T Recommendation G.692:1998ITU-T Recommendation G.697:2004ITU-T Recommendation G.694.1All current amendments available at time of purchase are included with the purchase of this document.