CONTENTS

1 Scope
2 Background
3 References
4 Definitions and abbreviations
4.1 Definitions
4.2 Abbreviations
5 Reference configuration
5.1 Interface location with respect to reference configuration
5.2 Interface location with respect to the customer installation
6 Characteristics of the Physical Media Dependent (PMD) sublayer
7 Functions provided by the Transmission Convergence (TC) sublayer
7.1 Transfer capability
7.1.1 SDH-based
7.1.2 Cell-based
7.2 Transport-specific TC functions
7.3 ATM-specific TC functions
7.3.1 ATM cell format
7.3.2 Header Error Control (HEC)
7.3.3 Cell delineation
7.3.4 Scrambler operation
7.3.5 Idle cells
7.4 OAM Implementation
8 Operational functions
9 Power feeding
Appendix I Impact of random bit errors on cell delineation performance
Appendix II Distributed sample scrambler implementation example