The multipurpose network on board Thalassa
Transcription
The multipurpose network on board Thalassa
Data Processing Department The multipurpose network on board Thalassa On board Thalassa, an important multipurpose network support a set of scientific computers and a multimedia broadcasting real time system. Real spine of the vessel, this local area network was designed to answer to the scientific community needs with an open-ended capability and guaranteed throughput to each connecting point. The network features Star topology Technology : 4 shielded twisted pairs type 5 EIA/TIA 568 Cable characteristics : 12 km length 6 mm diameter Number of broadcasting points : 208 of RJ45 type whose 31 IP66 Network head : 1 DEChub 900 Multiswitch 2 DECrepeater 900TM (2 shared Eth.) 2 VnSwitch 900 EE 1 ATM switch 8 ports 1 ATM/Eth. switch router 12 ports Integrated redondancy Secured video control DEChub 900 Multiswitch (DIGITAL) The network facilities Data acquisition of the sensors Shared resources (files, software, ...) Data broadcasting in real time Shared devices (plotter, printers, ...) Centralized data archival storage Communications between the different systems Extended data graphic display File transfer between different types of machines Cruise log book Client/server applications Digital video supervision of the ship Communications between land and ship (email, ftp, ...) External subnetworks connection (towed acoustic systems, ...) General configuration of the network Scientific data acquisition Navigation and cartographic workstation GPS Technical data acquisition VME VME SR_ACQ Archiving system SR_NAV Echo sounders Heading, log Ethernet Email INMARSAT-B Network head Fisheries data display Cruise logbook C a m e r a s Echo-integration Video on demand and graphic display server SR_VID ATM DEChub 900 MS 64 Kbits DIGITAL Visualization equipment (X11, Mpeg) switched Ethernet Printers Scientific server SR_EXP Network analyse and setup IFREMER - Centre de Brest SR_NAV SR_ACQ SR_VID SR_EXP real time navigation subnetwork real time acquisition subnetwork video & graphic broadcasting subnet postprocessing subnetwork Plotter UNIX workstations and PC WINDOWS For more information, we suggest to browse through our internet server : http://www.ifremer.fr/fleet 96011 Head Office 155 rue Jean-Jacques Rousseau 92138 Issy-les-Moulineaux Cedex France phone 33 (0)1 46 48 21 00 33 (0)1 46 48 22 96 fax © Ifremer Contact Département Equipements Scientifiques et nformatique embarquée Centre de Brest BP 70, 29280 Plouzané - France phone 33 (0)2 98 22 41 83 33 (0)2 98 22 45 46 fax email [email protected]