NF C93-807-2-2:2005 Fibre optic communication subsystem test procedures - Part 2-2 : Digital systems - Optical eye pattern waveform, and extinction ratio measurement.
2008NF C93-807-2-2:2008 Fibre optic communication subsystem test procedures - Part 2-2 : digital systems - Optical eye pattern, waveform and extinction ratio measurement.
2005NF C93-807-2-2:2005 Fibre optic communication subsystem test procedures - Part 2-2 : Digital systems - Optical eye pattern waveform, and extinction ratio measurement.