CONTENTS

 1     Scope 
 2     References 
        2.1     Normative references         
        2.2     Informative references        
 3     Terms and definitions       
 4     Abbreviations   
 5     Classification of optical interfaces 
        5.1     Applications          
        5.4     Single-channel interfaces at the reference points S_S and R_S  
 6     Transverse compatibility   
 7     Parameter definitions        
        7.1     General information
        7.2     Interface at point S_S           
        7.3     Optical path parameters (single span) from S_S to R_S           
        7.4     Interface at point R_S           
 8     Parameter values 
 9     Optical safety considerations