Details

Autor(en) / Beteiligte

• Sidorenko, V
• Müller, WFJ
• Emschermann, D
• Zabolotny, W
• Fröhlich, I
• Becker, J

Titel

Time error accumulation in a hierarchical time and clock distribution network with deterministic optical links

Ist Teil von

• Journal of instrumentation, 2024-03, Vol.19 (3), p.C03014

Ort / Verlag

Bristol: IOP Publishing

Erscheinungsjahr

2024

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Accurate clock and time distribution is a key requirement for self-triggered streaming data acquisition in the CBM experiment. This distribution is handled by the Timing and Fast Control (TFC) system by clock forwarding and broadcasting the common time over latency-deterministic optical links in a hierarchical FPGA network. The point-to-point optical connections are served by the latency-optimized GBT-FPGA core, which has been developed at CERN. In the presented work, the performance of GBT-FPGA links for time and clock distribution in a scaled TFC system with multiple hops and endpoints has been investigated.