Business and Investment Development Agency

White Rabbit

White Rabbit (WR) is a technology developed at CERN to provide sub-nanosecond accuracy and picoseconds precision of synchronization for the LHC accelerators chain.

CERN developed WR as an open-source hardware, with primary adoption by other research infrastructures with similar challenges in highly accurate synchronization of distributed electronic devices.  It is currently deployed in numerous scientific infrastructures worldwide. White Rabbit has the potential to be commercialized and introduced into different industries, including telecommunications, financial markets, smart grids, industry automation, smart mobility solutions, space industry and quantum computing.

Advantages

  • Best in class time synchronization (sub nanoseconds)
  • Connecting up to thousands of nodes
  • Ethernet-based gigabit rate reliable data transfer
  • Fully open hardware, firmware and software
  • Inclusion in the PTP Profile specified in the IEEE 1588-2019 called the High-Accuracy Delay Request-Response Default PTP Profile, formalization of White Rabbit as part of the  IEEE 1588 standard, which makes it easy to use for telecommunication video Broadcasting or electric grid synchronization
  • Inclusion in the IEEE 802 standard as IEEE 802.1AS – Timing and Synchronization for Time-Sensitive Applications – simple application for use cases such as traffic or industrial automation

Technical description

CERN developed WR as open-source hardware, with primary adoption by other research infrastructures with similar challenges in highly accurate synchronization of distributed electronic devices. The R&D process and all knowledge gained throughout the development has been made available through CERN's Open Hardware Repository. This gives other organizations and companies the freedom to use and modify existing developments. Through proactive engagement of CERN's Knowledge Transfer group and Beam Controls group, a larger group of companies and organizations connected to the development of hardware, software, and gateway for WR switches and nodes. The WR ecosystem quickly grew to include several organizations, developing open hardware for widespread benefit. This collaborative approach brought improvements to the original concept, allowing CERN to also benefit from the new developments as well.

This new Ethernet-based technology, which ensures sub-nanosecond synchronization and deterministic data transfer, is now deployed in numerous scientific infrastructures worldwide. It has shown its innovative potential by being commercialized and introduced into different industries, including telecommunications, financial markets, smart grids, space industry and quantum computing.

More information here.

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