1 Scope
2 References
3 Definitions
4 Abbreviations and acronyms
5 Conventions
6 Architecture of the optical access network
6.1 Classes for optical path loss
7 Services
8 User network interface and service node interface
9 Optical network requirements
9.1 Layered structure of optical network
9.2 Physical media dependent layer requirements for the XG-PON
10 X/S tolerance of XG-PON ONU
10.1 Versatile WDM configuration
11 Upstream physical layer overhead
12 Mid-span reach extenders for XG-PON
Appendix I – Examples of wavelength allocation for XG-PON, G-PON and video
distribution services
Appendix II – Physical layer measurements required to support optical layer
supervision
Appendix III – Allocation of the physical layer overhead time