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.
- Standard 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
- Standard 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.
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.
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.
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