�1����
Scope�
�2���� References�
�3���� Abbreviations���
�4���� Definitions��
�5���� Architecture of the optical access
network
������� 5.1���� Network architecture���������
������� 5.2���� Reference configuration������
������� 5.3���� Functional blocks���
����� ��5.4���� ONU functional block��������
������� 5.5���� Optical Line Termination
functional block���
������� 5.6���� Optical Distribution Network
functional block��������
�6���� Services�����
�7���� User Network Interface and Service
Node Interface��������
�8���� Optical network requirements������
������� 8.1���� Layered structure of optical
network����������
������� 8.2���� Physical medium dependent layer
requirements for the ATM-PON�
������� 8.3���� Transmission Convergence layer
requirements for the ATM-PON��
������� 8.4���� Ranging method�����
�9���� Operations, Administration and
Maintenance (OAM) functionality
10���� Performance����
11���� Environmental condition��
12���� Safety
������ 12.1���� Electrical safety and protection������
������ 12.2���� Optical safety and protection���������
Appendix I � Optional
cases of overall minimum ORL of ODN at Oru and Ord, and Old
and Olu����
������� I.1���� �� Introduction���������
������� I.2���� �� Effect of open connectors located at ONU side
of star coupler�����
������� I.3���� �� Effect of open connectors located at OLT side of star coupler�������
������� I.4���� �� Effect of disconnecting a connector near ONU�����
Appendix II � Effect
of optical return loss of ODN����
������ II.1���� Introduction�����������
������ II.2���� ODN optical return loss of
32 dB���
������ II.3���� Other case of ODN reflectance������
Appendix III �
Ranging flow diagrams����
����� III.1���� Ranging flow in the ONU (example)�����������
����� III.2���� Ranging flow in the OLT (example)
Appendix IV � Access
network survivability����
������ IV.1���� Introduction����������
�� ����IV.2���� Possible switching types����
������ IV.3���� Possible duplex ATM-PON
configurations and characteristics�������
������ IV.4���� Requirements��������
������ IV.5���� Required information fields for
PLOAM cell����