CONTENTS

�1���� Scope�
�2���� References�
������� 2.1���� Normative references���������
������� 2.2���� Informative reference���������
�3���� Terms and definitions�������
������� 3.1���� Definitions�
������� 3.2���� Terms defined in other Recommendations���
�4���� Abbreviations���
�5���� Classification of optical interfaces�
������� 5.1���� Applications����������
������� 5.2���� Reference points����
������� 5.3���� Nomenclature��������
������� 5.4���� Multichannel inter-domain interfaces�����������
������� 5.5���� Single-channel inter-domain interfaces��������
������ �5.6���� Management signal implementations�����������
�6���� Transverse compatibility���
�7���� Parameter definitions��������
������� 7.1���� System operating wavelength range
������� 7.2���� Parameters
�8���� Parameter values�
������� 8.1���� Multichannel IrDI���
������� 8.2���� Single channel IrDI
�9���� Optical safety considerations��������
10���� Power level management�
Annex A � Configuration for Method A for assessment of single-channel� characteristics in a multichannel IrDI����
������� A.1���� Reference configuration�����
Annex B � Reference optical bandpass filter and reference receiver characteristics� for Method B, for assessment of single-channel� characteristics in a multichannel IrDI����
������� B.1���� Reference configuration�����
������� B.2���� Reference optical bandpass filter����
������� B.3���� Reference receiver
Appendix I � Single-channel client interfaces with 3R regeneration����
������� I.1���� �� Introduction���������
������� I.2���� �� Description of client signal interfaces with 3R regeneration�
Appendix II � Generic reference points within the OTN����
Appendix III � Clarification of use of reference points within IrDI and IaDI����
Appendix IV � Considerations for management signal implementations����
������ IV.1���� Optical channel management signal implementation
��� ���IV.2���� Optical multiplex section and optical transmission section management signal implementation����
Appendix V � Nomenclature for the highest class of optical tributary signal supported����
Appendix VI � Optical tributary signal class RZ 40G applications����
Appendix VII � Applications using electronic dispersion compensation���� �����