1
Scope
2 References
3
Definitions
4 Abbreviations and
acronyms
5
Conventions
6 The need for time and phase
synchronization
7 Time and phase synchronization
methods
7.1 Distributed
PRTC
7.2 Packet
based methods with timing support of intermediate
nodes
8 Network reference model
8.1 Access
section of HRM with PTP/native access IWF
9 Time and phase synchronization interfaces
Annex A – One pulse-per-second (1PPS) time and phase synchronization
interface specification
A.1
1PPS ITU-T V.11
interface
A.2 1PPS 50 W
phase synchronization measurement
interface
Appendix I – Time and
phase noise sources in time distribution chains
I.1 Noise
introduced by a primary reference time clock
(PRTC)
I.2 Noise
introduced by a packet master clock function
I.3 Noise
introduced by a packet slave clock
function
I.4 Noise
introduced by a telecom transparent
clock
I.5 Noise
introduced by a link
I.6
Derivation of delay
asymmetry
I.7
Characteristics of the noise sources
I.8 Time
error accumulation in a chain of clocks
Appendix II
– Time and phase end application synchronization
requirements
Appendix III – Asymmetry compensation
for use of different wavelengths
Appendix IV – Link
and network asymmetry compensation
Appendix V –
Delay asymmetry resulting from interface rate change in PTP-unaware
network elements
Bibliography