Table of Contents

 1     Scope            
 2     References   
 3     Definitions   
        3.1     Terms defined elsewhere
        3.2     Terms defined in this Recommendation     
 4     Abbreviations and acronyms  
 5     Dense wavelength division multiplexing and its applications            
 6     Fixed grid nominal central frequencies for dense WDM systems     
 7     Flexible DWDM grid definition
Appendix I – Use of the flexible grid    
        I.1     Flexible grid examples     
        I.2     Flexible grid compliance