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: firstname.lastname@example.org
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
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