Table of Contents

 1     Scope          
 2     References               
 3     Definitions 
 4     Abbreviations and acronyms             
 5     Conventions             
 6     The need for phase and time synchronization           
 7     Time-phase synchronization methods          
        7.1     Distributed PRTC          
        7.2     Packet based methods with timing support of intermediate nodes      
 8     Network reference model 
 9     Phase/time synchronization interfaces         
Annex A – One pulse-per-second (1PPS) phase and time synchronization  interface specification    
        A.1     ITU-T V.11 interface   
        A.2     1PPS 50 W phase synchronization measurement interface       
Appendix I – Time and phase noise sources in time distribution chains    
        I.1                   Noise introduced by a primary reference time clock (PRTC)         
        I.2                   Noise introduced by a packet master clock function        
        I.3                   Noise introduced by a packet slave clock function            
        I.4                   Noise introduced by a telecom transparent clock             
        I.5                   Noise introduced by a link           
        I.6                   Derivation of delay asymmetry 
        I.7                   Characteristics of the noise sources        
Appendix II – Time and phase end application synchronization requirements    
Appendix III – Asymmetry compensation for use of different wavelengths