CONTENTS

 1     Scope
 2     References
 3     Terms and definitions
        3.1     Definitions
                  3.1.1     Optical tributary signal class NRZ 40G
        3.2     Terms defined in other Recommendations
 4     Abbreviations and acronyms
 5    Classification of optical interfaces
        5.1     Applications
        5.2     Nomenclature
 6     Parameter definitions
        6.1     System operating wavelength range
        6.2     Transmitter
                  6.2.1     Source type
                  6.2.2     Spectral characteristics
                  6.2.3     Maximum mean output power
                  6.2.4     Minimum mean output power
                  6.2.5     Extinction ratio
                  6.2.6     Eye pattern mask
        6.3     Optical path
                  6.3.1     Maximum attenuation
                  6.3.2     Minimum attenuation
                  6.3.3     Dispersion
                  6.3.4     Reflections
        6.4     Receiver
                  6.4.1     Sensitivity
                  6.4.2     Overload
                  6.4.3     Path penalty
 7     Optical parameter values
 8     Optical engineering approach
Appendix I – Optical crosstalk impact