1 Scope
2 References
3 Definitions
3.1 Terms defined elsewhere
3.2 Terms defined in this Recommendation
4 Abbreviations and acronyms
5 Conventions
6 Architecture of the optical access network
6.1 Classes for optical path loss
6.2 Categories for fibre differential distance
7 This clause is intentionally left blank
8 This clause is intentionally left blank
9 Optical network requirements
9.1 Layered structure of optical network
9.2 PMD layer requirements for the 50G-PON
10 X/S tolerance of 50G-PON ONU and OLT
10.1 Versatile WDM configuration
11 Upstream physical layer overhead
Appendix I – Relationship between OMA, penalty, extinction ratio and average
power
Appendix II – Physical layer measurements required to support optical layer
supervision
Appendix III – Allocation of the physical layer overhead time
Appendix IV – Relationship among optical interface parameters for 49.7664
Gbit/s downstream
Bibliography