Table of Contents - G.8262.1 (11/2025) - Timing characteristics of enhanced synchronous equipment clocks

1	Scope
2	References
3	Definitions
4	Abbreviations and acronyms
5	Conventions
6	Frequency accuracy
7	Pull-in, hold-in and pull-out ranges
	7.1	Pull-in range
	7.2	Hold-in range
	7.3	Pull-out range
8	Noise generation
	8.1	Wander in locked mode
	8.2	Non-locked wander
	8.3	Jitter
9	Noise tolerance
	9.1	Wander tolerance level 1
	9.2	Wander tolerance level 2
	9.3	Jitter tolerance
10	Noise transfer
11	Transient response and holdover performance
	11.1	Short-term phase transient response
	11.2	Long-term phase transient response (holdover)
12	Interfaces
Appendix I – Relationship between requirements contained in this Recommendation and other key synchronization-related Recommendations
Appendix II – List of Ethernet interfaces applicable to synchronous Ethernet
Appendix III – Considerations related to synchronous Ethernet over 1GBASE-T, 2.5GBASE-T, 5GBASE-T and 10GBASE-T
Appendix IV – Performance estimation for cascaded media converters acting as enhanced synchronous equipment clocks
	IV.1	Noise generation
	IV.2	Noise tolerance
	IV.3	Noise transfer
	IV.4	Transient response and holdover performance
Appendix V – Example of a short-term phase transient response
Bibliography