1 Scope
2 References
3 Definitions
4 Abbreviations and acronyms
5 Conventions
6 Optical extension schemes and architectures
6.1 OA-based reach extenders
6.2 OEO-based reach extenders
6.3 Hybrid architectures
6.4 Wavelength conversion reach extenders
6.5 Wavelength re-conversion at OLT
6.6 Combination G-PON and XG-PON reach extenders
6.7 Increased fanout reach extenders
7 General requirements on XG-PON reach extenders
7.1 Compatibility
7.2 Management
7.3 Power
7.4 Optional enhancements
8 Specifications for mid-span extenders
8.1 Optical trunk line
8.2 Optical trunk line interface (R'/S') and OLT interface (S/R)
8.3 Optical distribution network
8.4 Extender interface to optical distribution network (S'/R') and
ONU interface (R/S)
8.5 TC layer impacts
8.6 WDM wavelength allocation plan for OTL
Appendix I – Implications on OLT receivers due to insertion of OA type
extenders
Appendix II – Protection
II.1 Introduction
II.2 RE-independent type B protection
II.3 OEO extender based Type B protection
II.4 OA- Extender based Type B protection architecture
Appendix III – Optical time domain reflectometer
III.1 Introduction
III.2 Solution
Appendix IV – Transport of BM-to-CM converted signals over OTN
Appendix V – Possible realization of OA and OEO-based extenders using
wavelength conversion
V.1 A transparent wavelength plan extender realization
V.2 A conventional wavelength plan extender realization
V.3 An OWC based extender realization
Bibliography