JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@inproceedings{lampridis:icalepcs2021-thbr01, author = {D. Lampridis and T. Gingold and D. Michalik and A. Poscia and M.H. Serans and M.R. Shukla and T.P. da Silva}, % author = {D. Lampridis and T. Gingold and D. Michalik and A. Poscia and M.H. Serans and M.R. Shukla and others}, % author = {D. Lampridis and others}, title = {{Renovation of the Trigger Distribution in CERN’s Open Analogue Signal Information System Using White Rabbit}}, booktitle = {Proc. ICALEPCS'21}, pages = {839--846}, eid = {THBR01}, language = {english}, keywords = {network, controls, hardware, timing, interface}, venue = {Shanghai, China}, series = {International Conference on Accelerator and Large Experimental Physics Control Systems}, number = {18}, publisher = {JACoW Publishing, Geneva, Switzerland}, month = {03}, year = {2022}, issn = {2226-0358}, isbn = {978-3-95450-221-9}, doi = {10.18429/JACoW-ICALEPCS2021-THBR01}, url = {https://jacow.org/icalepcs2021/papers/thbr01.pdf}, abstract = {{The Open Analogue Signal Information System (OASIS) acts as a distributed oscilloscope system that acquires signals from devices across the CERN accelerator complex and displays them in a convenient, graphical way. Today, the OASIS installation counts over 500 multiplexed digitisers, capable of digitising more than 5000 analogue signals and offers a selection of more than 250 triggers for the acquisitions. These triggers are mostly generated at a single central place and are then distributed by means of a dedicated coaxial cable per digitiser, using a "star" topology. An upgrade is currently under way to renovate this trigger distribution system and migrate it to a White Rabbit (WR) based solution. In this new system, triggers are distributed in the form of Ethernet messages over a WR network, allowing for better scalability, higher time-stamping precision, trigger latency compensation and improved robustness. This paper discusses the new OASIS trigger distribution architecture, including hardware, drivers, front-end, server and application-tier software. It then provides results from preliminary tests in laboratory installations.}}, }