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