1 Scope
2
References
3
Definitions
4
Abbreviations and acronyms
5
Conventions
6
Architecture of the optical access network
6.1 Physical grouping of logical functions
6.2 ODN optical path loss (OPL) classes
6.3 Fibre distance classes
7
Services
8
User network interface and service node interface
9
Common optical network requirements
9.1 Layered structure of optical network
9.2 Wavelength plans for NG-PON2
9.3 Physical media dependent layer
requirements
10
Crosstalk-to-signal ratio tolerance for NG-PON2
10.1 Wideband X/S tolerance mask definition
10.2 Narrowband TWDM PON X/S tolerance mask
11
TWDM PON PMD layer requirements
11.1 PMD layer requirements
11.2 Upstream physical layer overhead
Annex A – Tunable PtP WDM PON PMD layer
requirements
A.1 PMD layer requirements
Annex B – Auxiliary management and control channel
B.1 Introduction
B.2 Transparent AMCC
Annex C – Low loss (LL) PtP WDM PON PMD layer
requirements
C.1 PMD layer requirements
Annex D – ONU power levelling
D.1 Interaction between NG-PON2 PMD layer and
TC layer
D.2 Power levelling (PL) mechanism at ONU
transmitter
D.3 ONU autonomous power levelling
D.4 OOC and OOB PSD relaxation
D.5 OLT directed ONU power levelling
D.6 ONU troubleshooting considerations
Appendix I – Wavelength considerations for NG-PON2,
XG-PON1, G-PON and RF video overlay distribution services
Appendix II – Physical layer measurements required to
support optical layer supervision
Appendix III – Allocation of the physical layer
overhead time
Appendix IV – Jitter budget specifications for TWDM
PON
Appendix V – Measurement of TWDM PON burst mode
acquisition time and burst node eye opening at OLT
Appendix VI – Nonlinear Raman interactions in optical
fibres and mitigation technologies for coexistence of multiple PONs
Appendix VII – Cyclic AWG channel grid design
examples
Appendix VIII – Wavelength
multiplexer, upstream inter-channel crosstalk, ONU transmitter tuning time
considerations, and upstream channel grid example
VIII.1 Wavelength multiplexer
VIII.2 Upstream inter-channel crosstalk
VIII.3 ONU transmitter tuning time
VIII.4 TWDM PON upstream channel grid examples
Appendix IX – Alternative line code for Raman
mitigation
IX.1 8B10B Scheme
IX.2 Miller & Miller squared scheme
IX.3 Raman mitigation suppression levels
Bibliography