A prototype optical link board with redundancy design for the ATLAS liquid argon calorimeter Phase-2 upgrade. (1st May 2022)

• Record Type: Journal Article
• Authors: Huang, X.; Liu, C.; Deiana, A.; Deng, B.; Gong, D.; Hasley, L.; Hou, S.; Liu, T.; Sun, H.; Ye, J.; Zhang, L.; Zhang, W.
• Is Part Of: Journal of instrumentation. Volume 17:Number 5(2022)
• Publication Date: 2022-05-01
• Subjects: Detector control systems (detector and experiment monitoring and slow-control systems, architecture, hardware, algorithms, databases) -- Front-end electronics for detector readout -- Optical detector readout concepts; Scientific apparatus and instruments -- Periodicals; 502.84
• DOI: 10.1088/1748-0221/17/05/C05007
• Languages: English
• ISSNs: 1748-0221

Abstract

Abstract: A prototype optical-link board has been developed for the ATLAS Liquid Argon Calorimeter Phase-2 upgrade. The board consists of 24 lpGBT chips and 8 VTRx+ modules and demonstrates the full optical link design of the future front-end board. The board has 22 simplex optical links to transmit detector data, which are emulated in FPGAs and injected through 6 FMC connectors, to the off-detector electronics. The board implements 2 duplex optical links for clocks, control, and monitoring with redundant design to improve the system reliability. Data transmission and all redundant designs have been verified. A fiber routing scheme, in which 2 or 3 VTRx+ modules are re-connected to the front panel with an MPO connector, has been prototyped.