# News

Orolia Partners with Meta to Improve Scalability, Accuracy of Timing Network


Open-source collaboration features the Orolia Atomic Reference Time Cards powered by industry-leading micro-atomic clock

PARIS – Apr. 25, 2022 – Orolia, the world leader in resilient positioning, navigation and timing, is providing Atomic Reference Time (ART) Cards to support Meta’s implementation of high precision timing protocols within its distributed timing infrastructure. The architecture of Orolia ART Cards is powered by the company’s industry-leading mRO-50 mini rubidium atomic clock technology.

“We are honored to have this opportunity to collaborate with Meta’s incredibly talented team of engineers to develop a unique open-source solution using our mRO-50 technology,” said Jean-Yves Courtois, Orolia CEO. “We look forward to a continuing partnership with Meta and other global network leaders working to advance solutions to ensure ongoing timing accuracy and resilience.”

Orolia developed the ART Card solution in collaboration with the Meta engineering team to fulfill a new specification that Meta published for the Time Appliances Project Initiative of the Open Compute Project. This new collaborative community is focused on designing from scratch new hardware and software to efficiently support the critical timing accuracy and resilience demands on computer network infrastructure. This project is fully open sourced and available at Orolia’s GitHub.

In 2020, Meta began converting its data center servers to a new time distribution service based on Network Time Protocol and Precision Time Protocol. The new service, built in-house and later open sourced, was more scalable and improved the accuracy of timekeeping within the Meta infrastructure from ten milliseconds to 100 microseconds. In 2021, Meta introduced the Time Card as an open source solution to build the time servers. There Orolia ART Card was built based on that blueprint and compatibility. Orolia ART Cards will further increase the accuracy, resiliency, and adoption of Meta’s new timing platform.

Developed with long-term support in mind, Orolia’s ART Cards deliver management, disciplining, and monitoring functions that can be integrated into any computer with a PCIe port and bring accurate and resilient timing for the most demanding applications such as NTP/PTP time reference, time stamping and latency calculation.

Key Features of Orolia’s ART Card:

  • First PCIe card to include an atomic time reference from Orolia, the mRO-50 and a multi-frequency multi-constellation GNSS receiver.
  • PCIe 2.0 x4 format.
  • Sub 1µs/24h holdover performance.
  • Open-source software suite including the driver, monitoring daemon and disciplining algorithm supported by the timing, PNT, data center community.
  • Compatible with existing NTP and PTP implementations.
  • Open architecture with a huge potential for customization.
  • Evolutive to support OS-NMA.

About the Time Appliances Project

The Open Compute Project (OCP) initiated a sub-project called Time Appliances Project (TAP) dedicated to time in data centers. This project aims to provide a platform to bring together, discuss, standardize and share technologies and solutions across industries with the data center applications and data center network infrastructure as the main interest.

The time appliances project aims to support the development of a PTP profile for data center applications and data center network infrastructure. This profile will cover time-sensitive applications over OCP-compliant and PTP-aware networking infrastructure such as network switches, network clocks, network interface cards, timing modules and connectors, etc.

Additionally, the profile will address various requirements for high accuracy and reliable distribution and synchronization of time, such as expected performance, networking, software API, data models, deployment and telemetry. The project also aims at openness and interoperability using open-source PTP software implementations for timing appliances.


Charles Jones (North America)
+1 (585) 450-2889

Sophie Zangs (EMEA & APAC)
+33 (0)6 07 42 39 33

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