ITER CODAC Abbreviations and Acronyms - ITER - the …static.iter.org/codac/pcdh7/Folder...

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PDF generated on 19-Mar-2013 DISCLAIMER : UNCONTROLLED WHEN PRINTED – PLEASE CHECK THE STATUS OF THE DOCUMENT IN IDM List ITER CODAC Abbreviations and Acronyms Abbreviations and acronyms widely used in the ITER CODAC documentation Approval Process Name Action Affiliation Author Stepanov D. 28-Jan-2013:signed IO/DG/DIP/CHD/CSD/CDC CoAuthor Reviewers Wallander A. Yonekawa I. 05-Feb-2013:recommended 29-Jan-2013:recommended IO/DG/DIP/CHD/CSD IO/DG/DIP/CHD/CSD/PCI Approver Thomas P. 19-Mar-2013:approved IO/DG/DIP/CHD Document Security: level 1 (IO unclassified) RO: Stepanov Denis Read Access AD: ITER, AD: External Collaborators, AD: Division - Control System Division - EXT, AD: Section - CODAC - EXT, AD: Section - CODAC, project administrator, RO, AD: Division - Control System Division IDM UID 2LT73V VERSION CREATED ON / VERSION / STATUS 26 Jan 2013 / 3.0/ Approved EXTERNAL REFERENCE

Transcript of ITER CODAC Abbreviations and Acronyms - ITER - the …static.iter.org/codac/pcdh7/Folder...

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PDF generated on 19-Mar-2013DISCLAIMER : UNCONTROLLED WHEN PRINTED – PLEASE CHECK THE STATUS OF THE DOCUMENT IN IDM

List

ITER CODAC Abbreviations and Acronyms

Abbreviations and acronyms widely used in the ITER CODAC documentation

Approval Process Name Action AffiliationAuthor Stepanov D. 28-Jan-2013:signed IO/DG/DIP/CHD/CSD/CDCCoAuthorReviewers Wallander A.

Yonekawa I. 05-Feb-2013:recommended29-Jan-2013:recommended

IO/DG/DIP/CHD/CSDIO/DG/DIP/CHD/CSD/PCI

Approver Thomas P. 19-Mar-2013:approved IO/DG/DIP/CHDDocument Security: level 1 (IO unclassified)

RO: Stepanov DenisRead Access AD: ITER, AD: External Collaborators, AD: Division - Control System Division - EXT, AD: Section -

CODAC - EXT, AD: Section - CODAC, project administrator, RO, AD: Division - Control System Division

IDM UID

2LT73VVERSION CREATED ON / VERSION / STATUS

26 Jan 2013 / 3.0/ Approved

EXTERNAL REFERENCE

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Change Log

Title (Uid) Version

Latest Status Issue Date Description of Change

ITER CODAC Abbreviations and Acronyms (2LT73V_v3_0)

v3.0 Approved 26 Jan 2013

Release in scope of PCDH v7. Cleanup of acronyms unused since CODAC CDR and addition of new acronyms from the CODAC PDR phase.

ITER CODAC Abbreviations and Acronyms (2LT73V_v2_2)

v2.2 Approved 14 Feb 2011

Implemented J.Poole remarks + added 26 new abbreviations

ITER CODAC Abbreviations and Acronyms (2LT73V_v2_1)

v2.1 Signed 10 Jan 2011

Minor revision before the external review for the PCDH v6

ITER CODAC Abbreviations and Acronyms (2LT73V_v2_0)

v2.0 Signed 16 Apr 2010

Update for 2010: 200 more acronyms added. Overhaul of the document style to conform to ITER standards.

ITER CODAC Abbreviations and Acronyms (2LT73V_v1_0)

v1.0 Signed 16 Feb 2009

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Table of contents1 Introduction.........................................................................................................................2

1.1 PCDH Context.............................................................................................................21.2 Scope.............................................................................................................................21.3 References....................................................................................................................2

2 Acronyms.............................................................................................................................4

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1 Introduction

1.1 PCDH Context

The Plant Control Design Handbook (PCDH) [RD1] defines methodology, standards, specifications and interfaces applicable to ITER Plant Systems Instrumentation & Control (I&C) system life cycle. I&C standards are essential for ITER to:

• Integrate all plant systems into one integrated control system.• Maintain all plant systems after delivery acceptance.• Contain cost by economy of scale.

PCDH comprises a core document which presents the plant system I&C life cycle and recaps the main rules to be applied to the plant system I&Cs for conventional controls, interlocks and safety controls. Some I&C topics will be explained in greater detail in dedicated documents associated with PCDH as presented in Figure 1. This document is one of them.

Figure 1: PCDH documents structure

1.2 Scope

This is a stable list of abbreviations and acronyms being used by the CODAC team in various documents and in daily work. The online copy, [RD2], maintained on the CODAC Team web site, provides more details, including information about provenance and obsolescence, and may be more up to date.

This document lists 677 acronyms. Another source of acronyms useful to consult is the project-wide list, [RD3].

1.3 References

[RD1] Plant Control Design Handbook (27LH2V)

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[RD2] ITER CODAC Acronyms – online copy (https://portal.iter.org/departments/CHD/CODAC/Pages/Acronyms.aspx)

[RD3] ITER Abbreviations (2MU6W5)

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2 AcronymsAcronym Meaning

1oo2 One-out-of-two2D Two Dimensional2oo3 Two-out-of-three2oo3oo4 Two-out-of-three-out-of-four3D Three Dimensional3IL ITER Interlock Integrity Level4D Four Dimensional4GL Fourth Generation LanguageA (fr.) «Ampère» (Ampere) AC Alternating CurrentACK ACKnowledgeAD Applicable DocumentADC Analogue to Digital ConverterADM ADMinistration departmentAI Analogue InputAI (in the context of Computer Science) Artificial IntelligenceAIF (fr.) «Agence ITER France» (Agency ITER France) ALARA As Low As Reasonably AchievableAMC Advanced Mezzanine CardANSI American National Standards InstituteAO Analogue OutputAPI Application Programming InterfaceARP Address Resolution ProtocolASAP As Soon As PossibleASCII American Standard for Code Information InterchangeASDEX-U Axially Symmetric Divertor EXperiment, UpgradeASIPP chinese Academy of Sciences Institute of Plasma PhysicsASN (fr.) «Autorité de Sûreté Nucléaire» (Nuclear Safety Authority) ATA Advanced Technology AttachmentATCA Advanced Telecom Computing ArchitectureATEX (fr.) «ATmosphères EXplosibles» (Explosive Atmospheres) ATLAS A Toroidal LHC ApparatuSAVI Audio Video InterleaveAVI (in the context of TTTs) AVN InterfaceAVN Audio-Video NetworkB ByteBCR Backup Control RoomBD Block DiagramBEAST Best Ever Alarm System ToolkitBEAUTY Best Ever Archive Toolset, YetBLOB Binary Large OBjectBMS Building Management SystemBNL Brookhaven National LaboratoryBOM Bill Of MaterialsBOY Best OPI Yetbps bits per secondBSD Berkeley Software DistributionBSI Buildings & Site Infrastructure directorateC&ID Control and Instrumentation DiagramCA Channel AccessCAC CA ClientCAD Computer Aided DesignCAMAC Computer Automated Measurement And ControlCAS CA ServerCASE Computer Aided Software EngineeringCASPUR (it.) «Consorzio interuniversitario per le Applicazioni di Supercalcolo Per Università e Ricerca»

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(Inter-University Consortium for the Application of Super-Computing for Universities and Research)

CATIA Computer Aided Three-dimensional Interactive ApplicationCB Circuit BreakerCBN Common Bonding NetworkCBS Control Breakdown StructureCC Control CubicleCC (in the context of Plasma physics) Correction CoilsCCD (in the context of CODAC Documentation) CODAC Conceptual DesignCCD Charge-Coupled DeviceCCS (in the context of CODAC) CODAC Core SystemCD Compact DiscCD (in the context of Plasma physics) Current DriveCDR Conceptual Design Review

CEA (fr.) «Commissariat à l'Énergie Atomique et aux énergies alternatives» (Commissariat for Atomic and Alternative Energy)

CEP Central Engineering and Plant support directorateCERN (fr.) «Conseil Européen pour la Recherche Nucléaire» (European Council for Nuclear Research) CHD CODAC, Heating and current drive, Diagnostics directorateCIE Central Integration and Engineering directorate

CIEMAT (sp.) «Centro de Investigaciones Energéticas, MedioAmbientales y Tecnológicas» (Research Center for Energy, Environment and Technology)

CII CIN InterfaceCIN Central Interlock NetworkCIS Central Interlock SystemCLD Control Logic DiagramCLI Command Line InterfaceCLK CLocKCM Configuration ManagementCMM CM ModelCMOS Complementary Metal-Oxide-SemiconductorCN ChiNaCNP Central I&C Network PanelCNR (it.) «Consiglio Nazionale delle Ricerche» (National Research Council) CODAC COntrol, Data Access and CommunicationCORBA Common Object Request Broker ArchitectureCOS Common Operating StateCOTS Commercial Off-The-ShelfcPCI compact PCI CPM CODAC Progress MeetingCPS Coil Power SupplyCPU Central Processing Unit // Also meaning "Computer" in TTT context CRC Cyclic Redundancy CheckCRPP (fr.) «Centre de Recherches en Physique des Plasmas» (Plasma Physics Research Center) CS (in the context of Plasma physics) Central SolenoidCS Client-ServerCSCI Computer Software Configuration ItemCSD Control System DivisionCSI CSN InterfaceCSMA/CD Carrier Sense Multiple Access with Collision DetectionCSN Central Safety NetworkCSS Central Safety SystemCSS (in the context of SCADA) Control System StudioCSS (in the context of WWW) Cascading Style SheetsCSS-N CSS for Nuclear risksCSS-OS CSS for Occupational SafetyCU CUbicleCV Curriculum VitaeCVS Concurrent Versions SystemCWS Cooling Water System

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CXRS Charge eXchange Recombination SpectroscopyD DeuteriumDA Domestic AgencyDAC Digital to Analogue ConverterDAN Data Archiving NetworkDANTE Delivery of Advanced Network Technology to EuropeDAQ Data AcQuisitionDAS Data Acquisition SystemDB DataBaseDB (in the context of PLCs) Data BlockDC Direct CurrentDCS Distributed Control SystemDDD Design Description DocumentDDES Distributed Data Exchange SystemDDG Deputy Director-GeneralDDR Double Data RateDEMO DEMOnstration power plantDESY (ger.) «Deutsches Elektronen-SYnchrotron» (German Electron Synchrotron) DFD Data Flow DiagramDG Director-GeneralDG (in the context of Power supplies) Diesel GeneratorDH Division HeadDHCP Dynamic Host Configuration ProtocolDI Digital InputDIII-D Doublet III DivertorDIME Direct Internet Message EncapsulationDIO Digital I/O DIP Department for ITER ProjectDIR Design Integration ReviewDLI Discharge Loop Interface boxDM Data ManagerDMA Direct Memory AccessDMCS Department of Microelectronics and Computer Science // Unit of Technical University of Lodz, Poland DMZ DeMilitarized ZoneDNB Diagnostic Neutral BeamDNI DAN InterfaceDNS Domain Name SystemDO Digital OutputDOM Document Object ModelDOORS Dynamic Object Oriented Requirements SystemDPN Data Processing NodeDRAM Dynamic RAM

DRFC (fr.) «Département de Recherches sur la Fusion Contrôlée» (Controlled Fusion Research Department)

DRG Design Requirements and GuidelinesDRN Data Receiving NodeDS Domain SupervisorDSN Data Source NodeDSP Digital Signal ProcessorDT Deuterium-Tritium // Sometimes also written as D-T. DVD Digital Video DiscDWO Design Work OrderE Exa- (1018)EAST Experimental Advanced Superconducting Tokamak EC Electron CyclotronECA Electron Cyclotron AbsorptionECA (in the context of Publications) European Conference AbstractsECE Electron Cyclotron EmissionECH Electron Cyclotron HeatingECRH Electron Cyclotron Resonance Heating

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EDA Engineering Design ActivitiesEDH Electrical Design HandbookEDM Extensible Display ManagerEEMUA Engineering Equipment and Materials Users' AssociationEFDA European Fusion Development AgreementEGEE Enabling Grids for E-sciencEEiC Engineer in ChargeELM Edge Localised ModeEMC ElectroMagnetic CompatibilityEMI ElectroMagnetic InterferenceEMS Environment Monitoring SystemEN European Norm

ENEA (it.) «Ente per le Nuove tecnologie, l'Energia e l'Ambiente» (Agency for New Technologies, Energy and Environment)

EOF End Of FileEPFL (fr.) «Ecole Polytechnique Fédérale de Lausanne» (Federal Polytechnic School of Lausanne) EPICS Experimental Physics and Industrial Control SystemEPR European Pressurized ReactorESO European Southern ObservatoryEU European UnionEURATOM EURopean ATOMic energy communityeV electronVolt (1.60217653(14)∙10−19 J)F Farad (m−2∙kg−1∙s4∙A2)F4E Fusion For EnergyFAN FAN, fan trayFAQ Frequently Asked QuestionsFAT Factory Acceptance TestFBD Functional Block DiagramFBS Functional Breakdown StructureFD Functional DiagramFDDI Fiber Distributed Data InterfaceFDR Final Design ReportFDR (in the context of Design reviews) Final Design ReviewFMEA Failure Mode and Effect AnalysisFMECA Failure Mode, Effects and Criticality AnalysisFPGA Field Programmable Gate ArrayFPSS Fusion Power Shutdown SystemFPU Floating Point UnitFSM Finite State MachineFTE Full-Time EquivalentFTP File Transfer ProtocolFZJ (ger.) «ForschungsZentrum Jülich» (Juelich Research Center) G Giga- (109)g gramGA General AtomicsGDRD General Design Requirements DocumentGEANT Gigabit European Academic NeTworkGIN General ITER NetworkGLORIAD GLObal RIng network for advanced Application DevelopmentGMT Greenwich Mean TimeGNU GNU's Not UNIX // This is a recursive acronym GOS Global Operating StateGPIB General Purpose Interface BusGPL General Public LicenseGPS Global Positioning SystemGPU Graphics Processing UnitGUI Graphical User InterfaceGW GateWayH Henry (m2∙kg∙s−2∙A−2)H (in the context of Plasma physics) Hydrogen

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HAL Hardware Abstraction LayerHAZOP HAZard and OPerabilityHDF Hierarchical Data FormatHF Human FactorsHF (in the context of Technology) High FrequencyHMI Human-Machine InterfaceHNB Heating Neutral BeamHPC High Performance ComputingHPN High Performance NetworksHR Human Resources divisionHTML HyperText Markup LanguageHTTP HyperText Transfer ProtocolHV High VoltageHVAC Heating, Ventilation and Air ConditioningHW HardWareHWC Hard Wired ControlsHWI Hard Wired IndicatorsHz Hertz (s-1)I&C Instrumentation and ControlI/O Input / OutputIAEA International Atomic Energy AgencyIBD Interlock Block DiagramIBM International Business MachinesIC (in the context of Plasma physics) Ion CyclotronIC ITER CouncilICALEPCS International Conference on Accelerator and Large Experimental Physics Control SystemsICD Interface Control DocumentICE Internet Communications EngineICH Ion Cyclotron HeatingICMP Internet Control Message ProtocolICP ITER Collaborative PlatformICRF Ion Cyclotron Resonance FrequencyICRH Ion Cyclotron Resonance HeatingICS Interlock Control SystemID IDentifierIDE Integrated Development EnvironmentIDEF0 Integration DEFinition for function modelingIDL (in the context of MDSplus) Interactive Data LanguageIDL Interface Description LanguageIDM ITER Document ManagementIEC International Electrotechnical CommissionIEEE Institute of Electrical and Electronics EngineersIETF Internet Engineering Task ForceIHCM IO/DA High level Coordination MeetingIL Instruction ListIN INdiaINB (fr.) «Installation Nucléaire de Base» (Basic Nuclear Installation) Internet Interconnected networksIO ITER OrganizationIOB I/O BoardIOC Input / Output ControllerIP (in the context of IEC 60529) Ingress ProtectionIP Internet ProtocolIP (in the context of Licensing) Intellectual PropertyIPAM IP Address ManagementIPC (in the context of Technology) Industrial PC IPC Inter-Process CommunicationIPFN (por.) «Instituto de Plasmas e Fusão Nuclear» (Institute for Plasmas and Nuclear Fusion) IPP (ger.) «Max-Planck-Institut für PlasmaPhysik» (Max Planck Institute of Plasma Physics) IPS Integrated Project Schedule

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IPT Integrated Product TeamIPv6 Internet Protocol version 6IR InfraRedIRMIS Integrated Relational Model of Installed SystemsIRQ Interrupt ReQuest

IRSN (fr.) «Institut de Radioprotection et de Sûreté Nucléaire» (Radioprotection and Nuclear Safety Institute)

IS Interface SheetISA International Society of AutomationISA (in the context of Computers) Industry Standard ArchitectureISO International Standards OrganizationIST (por.) «Instituto Superior Técnico» (Higher Technical Institute) IT Information TechnologyITER (lat.) «ITER» (The way) ITM Integrated Tokamak ModelingIUA ITER Unit of AccountJ Joule (m2∙kg∙s−2)JA JApanJAEA Japan Atomic Energy AgencyJET Joint European TorusJMS Java Message ServiceJPEG Joint Photographic Experts GroupJT Japan TorusJWS Joint Work Sitek kilo- (103)K KelvinKO KOreaKoM Kick-off MeetingKSTAR Korea Superconducting Tokamak Advanced ResearchLabVIEW Laboratory Virtual Instrumentation Engineering WorkbenchLAN Local Area NetworkLCC Local Control Cubicle // Deprecated as a TTT code. Use CU instead. LD Ladder DiagramLDAP Lightweight Directory Access ProtocolLDB Live DataBaseLED Light Emitting DiodeLEZ Loop Exclusion ZoneLHC Large Hadron ColliderLHD Large Helical DeviceLHH Lower Hybrid HeatingLIDAR LIght Detection And RangingLLNL Lawrence Livermore National LaboratoryLMJ (fr.) «Laser MégaJoule» (MegaJoule Laser) LOCA Loss Of Coolant AccidentLSB Least Significant Bit // Sometimes "B" refers to Byte LTM Long Term MaintenanceM Mega- (106)m (in the context of SI unit prefixes) milli- (10-3)m metreMAC Media Access ControlMAC (in the context of ITER Organization) Management Advisory CommitteeMARTe Multi-platform Application Real-Time executorMAST Mega Ampere Spherical Tokamak MATLAB MATrix LABoratoryMCR Main Control RoomMDSplus Model Data System plusMEDM Motif Editor and Display ManagerMET Middle European TimeMHD MagnetoHydroDynamicsMIME Multipurpose Internet Mail Extensions

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min minute (60 s)MIT Massachusetts Institute of TechnologyMMI Man-Machine Interface // HMI is a preferred abbreviation MoM Minutes of MeetingMPEG Moving Picture Experts GroupMQP Management and Quality ProgramMRG Messaging, Realtime, and GridMRG-R Messaging, Realtime, and Grid: Realtime platformMS MicroSoftMSB Most Significant Bit // Sometimes "B" refers to Byte MSDN MicroSoft Development NetworkMSE Motional Stark EffectMTBF Mean Time Between FailuresMTTR Mean Time To RecoveryMTU Maximum Transmission Unitn nano- (10-9)N/A Not ApplicableNAGIOS NAGIOS Ain't Gonna Insist On Sainthood // This is a recursive acronym NAS Network Attached StorageNB Neutral BeamNBH Neutral Beam HeatingNBI Neutral Beam InjectionNBTF Neutral Beam Test FacilityNFRC National Fusion Research CenterNFS Network File SystemNI National InstrumentsNIC Network Interface ControllerNIF National Ignition FacilityNNNN sequential number // "N" comes from the "Number", and the length of four determines the length of the identifier NPA Neutral Particle AnalyserNS Nuclear SafetyNSA Nuclear Safety AuthorityNSTX National Spherical Torus ExperimentNTM Neoclassical Tearing ModeNTP Network Time ProtocolNUREG NUclear REGulationsOBS Organizational Breakdown StructureOH Operations HandbookOLC Operating Limits and ConditionsOLE Object Linking and EmbeddingOPC OLE for Process ControlOPI OPerator InterfaceOPN Open Public NetworkORB Object Request BrokerORG Operation Request GatekeeperORM Object-Relational MappingOS Operating SystemOS (in the context of Safety) Occupational SafetyOSI Open Systems InterconnectionP Peta- (1015)p pico- (10-12)P&ID Process and Instrumentation DiagramPA Procurement ArrangementPa Pascal (m-1∙kg∙s-2)PAT Provisional Acceptance TestPBM Project Board MeetingPBS Plant Breakdown StructurePC Personal ComputerPCD Procurement & Contract DivisionPCDH Plant Control Design Handbook

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PCF Plant system Controller, Fast controlsPCI Peripheral Component InterconnectPCI (in the context of ITER Organization) Plant Control & Instrumentation sectionPCIe PCI expressPCR Project Change RequestPCS Plasma Control SystemPD Plant DescriptionPDF Portable Document FormatPDM Product Data ManagementPDR Preliminary Design ReviewPDS Plant Design SpecificationPF (in the context of Plasma physics) Poloidal FieldPF Packet FilterPFB Plant system Field BusPFD Process Flow DiagramPHP PHP: Hypertext Preprocessor // This is a recursive acronym PHTS Primary Heat Transfer SystemPIC Programmable Interface ControllerPICMG PCI Industrial Computer Manufacturers GroupPID Project Integration DocumentPIS Plant Interlock SystemPLC Programmable Logic ControllerPLL Phase Locked LoopPLM Product Lifecycle ManagementPLN Plant system Local NetworkPLS Pohang Light SourcePM Progress MeetingPMC PCI Mezzanine CardPNG Portable Network GraphicsPNI PON InterfacePO Purchase OrderPOC Proof Of ConceptPON Plant Operation NetworkPOP Plasma OPeration directoratePOS (in the context of Global ITER states) Pulse Operation StatePOSIX Portable Operating System Interface for UNIX POZ Plant Operation ZonePP Procurement PackagePPEN Pulsed Power Electrical NetworkPPPL Princeton Plasma Physics LaboratoryPPPPPP PBS level 3 identifier // "P" comes from the "PBS", and the length of six determines the length of the identifier PPTF Port Plug Test FacilityPPY Professional Per YearPR Project RequirementsPR (in the context of Procurement) Purchase RequestPRT PRinTerPS Plant SystemPS (in the context of Technology) Power SupplyPS (in the context of Computer Science) Publish-SubscribePS (in the context of ITER Baseline) Project SpecificationPSAR Preliminary Safety Assessment ReportPSC Plant Safety ControllerPSE Plant System EquipmentPSEG Plant System Engineering GroupPSH Plant System HostPSOS Plant System Operating StatePSS Plant Safety SystemPSS-N PSS for Nuclear risksPSS-OS PSS for Occupational SafetyPT Participant Team

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PTP Precision Time ProtocolPV Process VariablePVSS (ger.) «ProzessVisualiSierung und Steuerung» (Process Visualisation and Control) PXI PCI eXtensions for InstrumentationPXIe PXI expressQA Quality AssuranceQAP Quality Assurance PlanQC Quality ControlQoS Quality of ServiceR&D Research and DevelopmentR/O Read OnlyR/W Read / WriteRAID Redundant Array of Independent DisksRAM Random Access MemoryRAMI Reliability, Availability, Maintainability and InspectabilityRCK equipment RaCK, chassisRCP Rich Client PlatformRCS Revision Control SystemRD Reference DocumentRDB Relational DB RDBMS Relational DataBase Management System

RENATER (fr.) «REseau NAtional de télécommunications pour la Technologie, l'Enseignement et la Recherche» (National Telecommunication Network for Technology, Education and Research)

RF (in the context of Technology) Radio FrequencyRF Russian FederationRFC Request For CommentsRFE Ready For EquipmentRFI Radio Frequency InterferenceRFI (in the context of Documentation) Request For InformationRFM ReFlective MemoryRFX Reversed Field eXperimentRH Remote HandlingRHEL Red Hat Enterprise LinuxRIO Remote I/O RJ Registered JackRJH (fr.) «Réacteur Jules Horowitz» (Jules Horowitz Reactor) RMS Root Mean SquareRO Responsible OfficerROM Read-Only MemoryRP Remote ParticipationRPC Remote Procedure CallRPM Red hat Package ManagerRPrS (fr.) «Rapport Préliminaire de Sûreté» (Preliminary Safety Report) RT Real-TimeRWM Resistive Wall Modes secondS&I Safety and InterlocksS-ICD System Interface Control DocumentSADD Software Architecture and Design DescriptionSAT Site Acceptance TestSATA Serial ATA SAX Simple API for XML SCADA Supervisory Control and Data AcquisitionSCC Signal Conditioning CubicleSCCB Software Configuration Control BoardSCI Signal Conditioning InterfaceSCMP Software CM PlanSCS Safety Control SystemSCS-N SCS for Nuclear risksSCS-OS SCS for Occupational Safety

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SCXML State Chart XML SD Self-DescriptionSD (in the context of PCDH) Satellite DocumentSDD Self-Description DataSDK Software Development KitSDL Specification and Description LanguageSDMP Software Documentation Management PlanSDN Synchronous Databus NetworkSDP Software Development PlanSDRAM Synchronous DRAM SDSD Software Development Standards DecriptionSEQA Software Engineering and QA SES Schedule Execution SystemSFC Sequential Function ChartSI (fr.) «Système International d'unités» (International System of units) SIC Safety Importance Class // The previous meaning "Safety Important Component" is now deprecated SIL Safety Integrity LevelSJC Signal Junction CabinetSL Seismic LevelSLS Swiss Light SourceSMP Symmetric MultiProcessingSMS Short Message ServiceSMTP Simple Mail Transfer ProtocolSN Serial NumberSNI SDN InterfaceSNL State Notation LanguageSNMP Simple Network Management ProtocolSNS Spallation Neutron SourceSOA Service-Oriented ArchitectureSOAP Simple Object Access ProtocolSOFT Symposium Of Fusion TechnologySPMP Software Project Manajement PlanSPS Schedule Preparation SystemSQAP Software QAP SQL Structured Query LanguageSQS Safety, Quality & Security departmentSR Safety RelatedSRC SouRCeSRD System Requirements DocumentSRS Software Requirements SpecificationSRV SeRVerSSD SEE System DesignSSD (in the context of Computers) Solid-State DriveSSEN Steady State Electrical NetworkSSH Secure SHellSTM Short Term MaintenanceSTO data STOrageSTP Software Test PlanSTR Software Test ReportSTS Short Term Stand-bySUM Software User Manual

SUP SUPervision and automation system // Used to have a meaning "SUPervision group" in the CODAC Conceptual Design

Sv Sievert (m2∙s−2)SVG Scalable Vector GraphicsSVN SubVersioNSVS Schedule Validation SystemSVVP Software V&V PlanSW SoftWareSWT Standard Widget Toolkit

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SWT (in the context of TTTs) SWiTchSXR Soft X-RaySysML Systems Modeling LanguageT (in the context of SI unit prefixes) Tera- (1012)T Tesla (kg∙s−2∙A−1)T (in the context of Plasma physics) Tritiumt tonne (103 kg)TA Task AgreementTANGO TAco Next Generation ObjectsTBC To Be ConfirmedTBD To Be DefinedTBM Test Blanket ModuleTCL (in the context of MDSplus) Tree Command LanguageTCL Tool Command LanguageTCM Technical Committee MeetingTCM (in the context of ITER Organization) Technical Coordination MeetingTCN Time Communication NetworkTCO Test and Conditioning OperationTCP Transmission Control ProtocolTCS Test and Conditioning StateTCS (in the context of Companies) Tata Consultancy ServicesTCV (fr.) «Tokamak à Configuration Variable» (Variable configuration tokamak) TCWS Tokamak Cooling Water SystemTDI Tree Data InterfaceTF (in the context of Plasma physics) Toroidal FieldTF Task ForceTFTP Trivial File Transfer ProtocolTKM Tokamak directorateTLA Three-Letter AcronymTM (in the context of ITER Organization) Technical MeetingTM Trade MarkTNI TCN InterfaceTOC Table Of Contentstokamak (rus.) «toroidal'naya kamera s magnitnymi katushkami» (toroidal chamber with magnetic coils) TTL Transistor-Transistor LogicTTL (in the context of Networks) Time To LiveTTT function category designator // "T" comes from the "Type", and the length of three determines the length of the identifier TV TeleVisionUDP User Datagram ProtocolUID Unique IDentifierUKAEA United Kingdom Atomic Energy AuthorityUML Unified Modeling LanguageUNICOS UNified Industrial COntrol SystemUNIX UNiplexed Information and Computing System // With time the term "UNICS" transformed into "UNIX". UPS Uninterruptible Power SupplyURI Uniform Resource IdentifierURL Uniform Resource LocatorUS United StatesUSA United States of AmericaUSB Universal Serial BusUTC Universal Time CoordinatedUTF Unicode Transformation FormatUUID Universal Unique IDentifierV Volt (m2∙kg∙s−3∙A−1)V&V Verification and ValidationVC Video ConferenceVCS Version Control SystemVDCT Visual Database Configuration ToolVDE Vertical Displacement EventVIP Very Important Person

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VLAN Virtual LAN VME Versa Module EuropaVNC Virtual Network ComputingVR Visiting ResearcherVUV Vacuum UltraVioletVV Vacuum VesselVVPSS Vacuum Vessel Pressure Suppression SystemW Watt (m2∙kg∙s−3)W3C World Wide Web ConsortiumW7-X Wendelstein 7-XWAN Wide Area NetworkWBS Work Breakdown StructureWDP Wall Display PanelWi-Fi Wireless FidelityWIP Work In ProgressWLAN Wireless LAN WS (in the context of Web) Web ServiceWS Work StationWSDL Web Services Description LanguageWWW World Wide WebXMI XML Metadata InterchangeXML eXtensible Mark-up LanguageXMPP eXtensible Messaging and Presence ProtocolXSD XML Schema DefinitionXSLT eXtensible Stylesheet Language TransformationsYUM Yellowdog Updater, Modified°C degree Celsius (K − 273.15)Ω Ohm (m2∙kg∙s−3∙A−2)μ micro- (10-6)μTCA Micro Telecom Computing Architecture