%0 Conference Paper
%A Sidorenko, V.
%A Müller, Walter
%A Emschermann, D.
%A Zabolotny, W.
%A Fröhlich, I.
%A Becker, J.
%T Time error accumulation in a hierarchical time and clock distribution network with deterministic optical links
%J Journal of Instrumentation
%V 19
%N 03
%@ 1748-0221
%C London
%I Inst. of Physics
%M GSI-2025-00968
%P C03014
%D 2024
%Z Original content from this work may be used under the terms of the Creative Commons Attribution 4.0 licence. 
%X 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.
%B Topical Workshop on Electronics for Particle Physics
%C 1 Oct 2023 - 6 Oct 2023, Sardinia (Italy)
Y2 1 Oct 2023 - 6 Oct 2023
M2 Sardinia, Italy
%F PUB:(DE-HGF)16 ; PUB:(DE-HGF)8
%9 Journal ArticleContribution to a conference proceedings
%R 10.1088/1748-0221/19/03/C03014
%U https://repository.gsi.de/record/361504