Journals of Accelerator Conferences Website (JACoW)
JACoW
is a publisher in Geneva, Switzerland that publishes the
proceedings of accelerator conferences held around the world
by an international collaboration of editors.
| URL | https://doi.org/10.18429/JACoW-ICALEPCS2025-WEBR006 |
|---|---|
| Title | Distributed I/O Tier: from concept to operational readiness – a modular platform for custom radiation-tolerant and radiation-free electronics |
| Authors |
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| Abstract | The Distributed I/O Tier (DI/OT) project was launched to develop a common, modular hardware platform for custom electronics at the lowest layer of the CERN control system. Traditionally, this layer—closest to the accelerator and often exposed to radiation—relied on highly specialized, custom-designed devices with little reusability across subsystems. DI/OT addresses this limitation with a 3U crate based on the CompactPCI Serial industrial standard, along with high-performance (non-radiation-tolerant) and radiation-tolerant (lower-performance) modules. Key components include two System Boards (featuring Igloo2 FPGA and AMD Zynq UltraScale+ MPSoC), a radiation-tolerant switched-mode power supply, a fan tray, an FMC WorldFIP module, and a radiation-tolerant RISC-V soft-core. DI/OT users can tailor the platform to their needs by designing application-specific Peripheral Boards, FPGA configurations, and low-level software for the System Board. Standardizing on a common platform enables different equipment groups to benefit from centrally supported hardware while facilitating the sharing of application-specific peripherals. Over the past few years, DI/OT has evolved from a prototype to a production-ready platform. This paper presents DI/OT’s hardware modules, radiation qualification results, initial pilot deployments at CERN, and its adoption by the quantum computing community. Keywords: DI/OT, custom electronics, CompactPCI-Serial, SoC, radiation-tolerant |
| Paper | download: WEBR006.pdf |
| Cite | BibTeX, LaTeX, Text/Word, RIS, EndNote |
| Conference | 20th Int. Conf. Accel. Large Exp. Phys. Control Syst. (ICALEPCS'25) |
| Series | |
| Location | Chicago, IL, USA |
| Date | 20-26 Sep 2025 |
| Publisher | JACoW Publishing, Geneva, Switzerland |
| Editorial Board | Kent Wootton (ANL), Jeffery Biss (FNAL), Gustavo Bruno (ANL), Jeff Kirchman (ANL), Kelly Jaje (ANL), Denise Skiadopoulos (ANL), SuYin Grass Wang (ANL) |
| Online ISBN | 978-3-95450-255-4 |
| Online ISSN | 2226-0358 |
| Received | 03 September 2025 |
| Revised | 22 September 2025 |
| Accepted | 27 October 2025 |
| Issued | 25 November 2025 |
| DOI | 10.18429/JACoW-ICALEPCS2025-WEBR006 |
| Pages | 865-871 |
| Copyright | Published by JACoW Publishing under the terms of the Creative Commons Attribution 4.0 license. Any further distribution of this work must maintain attribution to the author(s), the published article's title, publisher, and DOI. |