CONTENTS

 1     Scope
 2     Background
 3     References
 4     Definitions and abbreviations
        4.1     Definitions
        4.2     Abbreviations
 5     Reference configuration
 6     Characteristics of the Physical Medium Dependent (PMD) sublayer
        6.1     PMD characteristics at S_B for 51 840 kbit/s
                  6.1.1     Bit rates
                  6.1.2     Bit rate symmetry
                  6.1.3     Bit Error Ratio (BER)
                  6.1.4     Timing
                  6.1.5     Medium characteristics
                  6.1.6     Transmitter functionality
                  6.1.7     PMD Scrambler/Descrambler
                  6.1.8     Receiver characteristics
                  6.1.9     Connectors for Category 3 UTP cabling
 7     Functions provided by the Transmission Convergence (TC) sublayer
        7.1     Transfer capability
        7.2     Transport-specific TC functions
                  7.2.1     SDH-based
                  7.2.2     Cell-based
        7.3     ATM specific TC functions
        7.4     OAM procedures
                  7.4.1     SDH-based OAM
                  7.4.2     Cell-based OAM
 8     Power feeding