White Rabbit for Finance
The White Rabbit technology is an extension of Ethernet. It provides sub-nanosecond synchronization over 1Gps Ethernet networks with timing and data transfers among its different elements in a fully deterministic way. The solution is part of the White Rabbit (WR) Project which is lead by CERN and follows an “Open Hardware” strategy. Furthermore, now White-Rabbit has evolved. It has been used as reference for the new High Accuracy profile of the IEEE-1588-2019 Precision Time Protocol. This provides not only new features but also enhanced interoperability and standard interfaces for the end users.
Our timing devices are used worldwide for the most exigent scientific facilities. The Timing System is based on the paradigm of Time-Triggering Control as an alternative to other Timing systems based on Event-triggering control framework. The event-based approach was the preferred solution in the past due to the lack of dependable and deterministic time transfer technologies. Now thanks to the White-Rabbit technology, a paradigm shift is possible, making available a much more feature-rich, flexible and higher performance Timing Systems for the next generation of most advanced Particle accelerators. Our solution is able not only to distribute time but also provided RF dissemination with very low jitter, distribute programmable trigger signals or timestamp any event at the same time than any kind of Ethernet data traffic is distributed over the network without impacting on the timing features.
Our Timing System is based on White-Rabbit / IEEE-1588 as the best design choice. Other solutions that bring precise timing and high synchronization already exist in the market, but most of them are limited in performance or flexibility or they use complex ad-hoc elements with poor support or availability. We believe that White Rabbit Solution is the best investment for a long term approach thanks to the following features:
Our Timing System is based on the following main elements:
The example shows how these elements of our Timing System can be deployed using White Rabbit solution as backbone technology to provide a shared notion of time to all the devices in the network and make it possible to develop a time-triggering control system.
As indicated in the figure, a common clock in the entire network is provided from a GNSS receiver and distributed using a data & timing network based on White-Rabbit switches. Different nodes (ZEN, SPECs, etc…) are powered with different FMC cards for triggering and/or timestamping operations. The Timing systems also distribute frequency with low jitter for ADCs and DAC devices distributed into the network. Their data can be read / write using the same timing network and standard Ethernet devices can be connected to retrieve such information for later processing and analysis. All the elements are programmed using friendly user-libraries and EPICS framework in order to configure the Timing System to generate the triggering signals or capture the timestamps events.
White Rabbit Technologies to enhance 5G capabilities for Mobile Backbone.Learn more
Our online communities live and breathe resilient pnt. Join engineers, universities, and the Orolia team in our online forum.