CONTENTS

 1     Scope
 2     References
 3     Terms and definitions
 4     Acronyms and abbreviations
 5     Conventions
 6     Network adapter overview
        6.1     Functional description
        6.2     SDH overhead information
 7     Detailed description of the basic functions
        7.1     MPEG Physical Interface (MPI)
                  7.1.1     Basic characteristics
                  7.1.2     Additional characteristics for System A (European system)
        7.2     MPEG ATM Adaptation (MAA)
                  7.2.1     Signal processing in the transmitter (Signal flow from b to c in Figure 1)
                  7.2.2     Signal processing in the receiver (Signal flow from c to b in Figure 1)
        7.3     Virtual Path Entity (VPE)
                  7.3.1     Signal processing in the transmitter (Signal flow from c to d in Figure 1)
                  7.3.2     Signal processing in the receiver (Signal flow from d to c in Figure 1)
        7.4     Virtual Path Multiplexing Entity (VPME)
                  7.4.1     Signal processing in the transmitter (Signal flow from d to e in Figure 1)
                  7.4.2     Signal processing in the receiver (Signal flow from e to d in Figure 1)
        7.5     Sm Trail Termination (Sm_TT)
        7.6     VC-n to VC-m Adaptation (Sn/Sm_A)
        7.7     VC-n Trail Termination (Sn_TT)
        7.8     STM-1 Multiplex section to VC-n layer Adaptation (MS1/Sn_A)
        7.9     STM-1 Multiplex Section Trail Termination (MS1_TT)
       7.10     STM-1 Regenerator Section to Multiplex Section Adaptation (RS1/MS1_A)
       7.11     STM-1 Regenerator Section Trail Termination (RS1_TT)
       7.12     STM-1 Optical Section to Regenerator Section Adaptation (OS1/RS1_A)
       7.13     STM-1 Electrical Section to Regenerator Section Adaptation (ES1/RS1_A)
       7.14     STM-1 Optical Section Trail Termination (OS1_TT)
       7.15     STM-1 Electrical Section Trail Termination (ES1_TT)
       7.16     Synchronous Equipment Timing Source (SETS)
       7.17     Synchronous Equipment Timing Physical Interface (SETPI)
       7.18     Equipment Management Function (EMF)
                 7.18.1     Configuration
                 7.18.2     Fault (maintenance) management
                 7.18.3     Performance management
Annex A – Transport within Sub-STM-1 at 51 Mbit/s
        A.1     Functional description
        A.2     Radio-Relay Sub-STM-1 Multiplex Section Adaptation (RR-MSA)
        A.3     Radio-Relay Sub-STM-1 Multiplex Section Termination (RR-MST)
        A.4     Radio-Relay Sub-STM-1 Regenerator Section Termination (RR-RST)
        A.5     Radio-Relay Sub-STM-1 Synchronous Physical Interface (RR-SPI)
Appendix I – Mechanism of the adaptive clock method
Appendix II – Enabling/disabling the Header Error Control functions
Appendix III – Transmission capacity of the Network Adapter