�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�
Appendix X � Upstream PMD examples for TWDM PON����
Bibliography����