https://doi.org/10.1051/epjconf/201611605008
NaNet3: The on-shore readout and slow-control board for the KM3NeT-Italia underwater neutrino telescope
1 INFN Sezione di Roma, Sapienza, P.le Aldo Moro, 2, 00185 Roma, Italy
2 INFN Sezione di Roma, Tor Vergata, via della Ricerca Scientifica, 1, 00133 Roma, Italy
3 INFN Sezione di Pisa, via F. Buonarroti 2, 56127 Pisa, Italy
a e-mail: andrea.biagioni@roma1.infn.it
Published online: 11 April 2016
The KM3NeT-Italia underwater neutrino detection unit, the tower, consists of 14 floors. Each floor supports 6 Optical Modules containing front-end electronics needed to digitize the PMT signal, format and transmit the data and 2 hydrophones that reconstruct in real-time the position of Optical Modules, for a maximum tower throughput of more than 600 MB/s. All floor data are collected by the Floor Control Module (FCM) board and transmitted by optical bidirectional virtual point-to-point connections to the on-shore laboratory, each FCM needing an on-shore counterpart as communication endpoint. In this contribution we present NaNet3, an on-shore readout board based on Altera Stratix V GX FPGA able to manage multiple FCM data channels with a capability of 800 Mbps each. The design is a NaNet customization for the KM3NeT-Italia experiment, adding support in its I/O interface for a synchronous link protocol with deterministic latency at physical level and for a Time Division Multiplexing protocol at data level.
© Owned by the authors, published by EDP Sciences, 2016
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
