1 Scope
2 References
3 Definitions
3.1 Terms defined elsewhere
3.2 Terms defined in this Recommendation
4 Abbreviations and acronyms
5 Conventions
6 Physical layer frequency performance requirements
7 T-BC packet layer performance requirements for full timing support from
the network
7.1 Constant time error and dynamic time error noise generation
7.2 Noise tolerance
7.3 Noise transfer
7.4 Transient response and holdover performance
7.5 Interfaces
Annex A – Telecom boundary clock and telecom slave clock
models
Annex B – Control of the phase transient due to rearrangements in the synchronous
Ethernet network
Annex C – Telecom time slave clock requirements
C.1 Physical layer frequency performance requirements
C.2 T-TSC packet layer performance requirements for full timing
support from the network
Appendix I – Mitigation of time error due to SyncE/SDH transients
Appendix II – Derivation of T-BC/T-TSC output transient mask
due to SyncE/SDH rearrangement
II.1 Background on assumptions for and derivation of T-BC output
phase error due to a SyncE/SDH rearrangement
II.2 T-BC output phase transient mask
Appendix III – Background to performance requirements of the
T-BC/T-TSC
III.1 Noise generation requirements
III.2 Noise tolerance
III.3 Noise transfer
III.4 Holdover
Appendix IV – Consideration on slave clocks embedded in end applications
Appendix V – Performance Estimation for Cascaded Media Converters acting as
T-BCs
V.1 Noise generation
V.2 Noise tolerance
V.3 Noise transfer
V.4 Transient response and holdover performance
Appendix VI – Choice of frequencies for measuring noise
transfer
VI.1 Envelope repeat
frequency
VI.2 Choice of artefact
frequency
VI.3 Possible frequencies
VI.4 Expected filter
response (PTP to PTP and PTP to 1 pps noise transfer)
VI.5 Expected filter
response (SyncE-to-PTP and SyncE-to-1pps noise transfer)
Bibliography