CONTENTS

 1     Scope
 2     References
 3     Definitions
 4     Abbreviations
 5     Network limits for traffic interfaces
        5.1     Network limits for output jitter at traffic interfaces
        5.2     Network limits for output wander at traffic interfaces
                  5.2.1     2048 kbit/s interface output wander limit
                  5.2.2     34 368 kbit/s interface output wander limit
                  5.2.3     139 264 kbit/s interface output wander limit
 6     Network limits for synchronization interfaces
        6.1     Network limits for output jitter at synchronization interfaces
        6.2     Network limits for output wander at synchronization interfaces
                  6.2.1     PRC interface output wander limit
                  6.2.2     SSU interface output wander limit
                  6.2.3     SEC interface output wander limit
                  6.2.4     PDH synchronization interface output wander limit
 7     Jitter and wander tolerance of network interfaces
        7.1     Jitter and wander tolerance of traffic interfaces
                  7.1.1     64 kbit/s input jitter and wander tolerance
                  7.1.2     2048 kbit/s input jitter and wander tolerance
                  7.1.3     8448 kbit/s input jitter and wander tolerance
                  7.1.4     34 368 kbit/s input jitter and wander tolerance
                  7.1.5     139 264 kbit/s input jitter and wander tolerance
        7.2     Jitter and wander tolerance of synchronization interfaces
Annex A - Network model underlying the synchronization network limit
        A.1     Introduction
        A.2     Considerations on the network model
        A.3     Information regarding the simulations
Annex B - Network wander reference model and parameters
        B.1     Wander reference model for traffic interfaces
                  B.1.1     Asynchronous PDH connection
                  B.1.2     Synchronous PDH connection
                  B.1.3     Specification of wander by MRTIE parameter
        B.2     Wander reference model for synchronization interfaces
                  B.2.1     Specification of wander by MTIE and TDEV parameters
Appendix I - Wander limit considerations for SDH transport networks
        I.1     Introduction
                  I.1.1     Wander reference model for SDH
                  I.1.2     Sources of wander
                  I.1.3     Wander accumulation limiting effects
                  I.1.4     Network configuration and performance
                  I.1.5     Correlation of wander sources
                  I.1.6     Network conditions for the output wander limits
        I.2     Derivation of wander specification limits
                  I.2.1     Wander specification limits
Appendix II - Measurement methodologies for output wander
       II.1     Synchronization interfaces
                 II.1.1     Synchronous signals
       II.2     Traffic interfaces
                 II.2.1     Synchronous signals (PDH bit-rates)
                 II.2.2     Asynchronous signals (PDH bit-rates)
Appendix III - Measurement guidelines for input jitter and wander tolerance of equipment interfaces