Active Standard

IEEE 1588-2019

IEEE Standard for a Precision Clock Synchronization Protocol for Networked Measurement and Control Systems

In this standard, a protocol is defined that provides precise synchronization of clocks in packet-based networked systems. Synchronization of clocks can be achieved in heterogeneous systems that include clocks of different inherent precision, resolution, and stability. The protocol supports synchronization accuracy and precision in the sub-microsecond range with minimal network and local computing resources. Customization is supported by means of profiles. The protocol includes default profiles that permit simple systems to be installed and operated without the need for user management. Sub-nanosecond time transfer accuracy can be achieved in a properly designed network.

Sponsor Committee
IM/ST - TC9 - Sensor Technology
Status
Active Standard
PAR Approval
2016-09-22
Superseding
1588-2008
Amendments
1588a-2023
1588b-2022
1588d-2023
1588e-2024
1588g-2022
Proposed Amendments
P1588c
P1588f
Board Approval
2019-11-07
History
Published:
2020-06-16

Working Group Details

Society
IEEE Instrumentation and Measurement Society
Learn More About IEEE Instrumentation and Measurement Society
Sponsor Committee
IM/ST - TC9 - Sensor Technology
Working Group
PNCS - Precise Networked Clock Synchronization Working Group
IEEE Program Manager
Vanessa Lalitte
Contact Vanessa Lalitte
Working Group Chair
Douglas Arnold

Other Activities From This Working Group

Current projects that have been authorized by the IEEE SA Standards Board to develop a standard.


P1588.1
Standard for Client Server Precision Clock Synchronization Protocol

This standard defines a simple and precise time transfer protocol called the Client Server Precision Time Protocol (CSPTP). CSPTP uses Precision Time Protocol (PTP) messages defined in IEEE Std 1588, to take advantage of timing support in network switches and routers. Therefore, CSPTP can achieve time transfer accuracies comparable to what can be achieved using PTP. However, CSPTP is logically isolated from PTP, and therefore can coexist with existing PTP networks. CSPTP allows clients to request timing information from any CSPTP server and allows the servers to operate without keeping state information on clients.

Learn More About P1588.1

P1588c
IEEE Draft Standard for a Precision Clock Synchronization Protocol for Networked Measurement and Control Systems Amendment: Clarification of Terminology

This draft standard is an amendment of IEEE Std 1588-2019. This amendment makes updates 2 to various sections to correct text and provide clarifications and other improvements.

Learn More About P1588c

P1588f
Standard for a Precision Clock Synchronization Protocol for Networked Measurement and Control Systems Amendment: Enhancements for latency and/or asymmetry calibration

This amendment enhances support for latency and asymmetry calibration, and also provides informative text related to these enhancements. It corrects errors in the text and clarifies unclear passages.

Learn More About P1588f

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