CONTENTS

�1���� Scope
�2���� References
�3���� Terms and definitions
������� 3.1���� Definitions
������� 3.2���� Terms defined in other Recommendations
�4���� Abbreviations
�5���� Applications
������� 5.1���� System types
������� 5.2���� System components
�6���� Type of transmission medium
�7���� Overall design features
������� 7.1���� System design and optical parameters
������� 7.2���� Transverse compatibility (Recommendation G.957)
������� 7.3���� Joint engineering
������� 7.4���� Pattern dependence testing
�8���� Transmission overheads
������� 8.1���� Regenerator section model
������� 8.2���� Regenerator model and functionality
������� 8.3���� Regenerator interfaces
�9���� General characteristics of synchronous optical line systems
��� ����9.1���� Synchronization and timing signal
������� 9.2���� Regenerator timing
������� 9.3���� Jitter performance
������� 9.4���� Error performance
������� 9.5���� Availability and reliability
������� 9.6���� Environmental conditions
������� 9.7���� Laser safety
10���� Operational overview
������ 10.1���� Overview
������ 10.2���� General management functions
������ 10.3���� Fault (maintenance) management
������ 10.4���� Performance management
������ 10.5���� TMN interfaces
������ 10.6���� Orderwire
Appendix� I� �� Implementation of the CID immunity measurement
Appendix� II� �� Description of automatic laser shutdown (ALS) capability in case of cable break
Reference