Telecommunications abbreviations and acronymsSuggest an abbreviationWe’re always adding new terms to our list. If you can’t find what you’re looking for, get in touch! We’ll respond directly, and consider adding the term to our list.Full list of abbreviations and acronyms10 GbE 10 Gigabit Ethernet10 GFC 10 Gigabit Fibre Channel1000BaseT 1000 Megabits per Second, twisted-pair cable version of an IEEE 802.3 network100BaseT 100 Megabits per Second, twisted-pair cable version of an IEEE 802.3 network100g 100 Gigabits10G-EPON 10 Gbits Ethernet Passive Optical Network3G Third-Generation wireless4G Fourth-Generation wirelessADM Add/drop multiplexingANSI American National Standards InstituteAPC Angled physical contactAPD Avalanche PhotodiodeASOF Application specific optical fiberATM Asynchronous transfer modeAWG Arrayed waveguide gratingsBER Bit error rateBERT Bit error rate testerCATV Community antenna televisionCD Chromatic dispersionCFP 100G Form-Factor PluggablesCLEC Competitive local exchange carrierCSFP Compact Small Form-Factor PluggableCVR Converter ModuleCWDM Coarse wavelength division multiplexingdB DecibeldBm Decibels relative to one milliwattDCF Dispersion-compensating fiberDFB Distributed feedbackDGD Differential group delayDMD Differential mode delayDOCSIS Data Over Cable Service Interface SpecificationDPOE Docsis Provisioning Over EthernetDSF Dispersion-shifted fiberDUT Device Under TestDWDM Dense wavelength division multiplexingEDFA Erbium-doped fiber amplifierEIA Electronic Industries AllianceEPON Ethernet Passive Optical NetworksER Extinction RatioFBG Fiber Bragg gratingFBT Fused biconical taperFEC Forward Error CorrectionFDDI Fiber distributed data interfaceFOTP Fiber optic test procedureFOTS Fiber optic transmission systemFP Fabry-Perot laserFSWDM Full spectrum wavelength division multiplexingFTTB Fiber to the business or buildingFTTC Fiber to the curb or customerFTTD Fiber to the deskFTTH Fiber to the homeFTTN Fiber to the neighborhoodFTTO Fiber to the officeFTTP Fiber to the pedestal or pedestalFTTx Fiber to the userFWM Four wave mixingGFF Gain flattening filterGHz GigahertzGEPON Gigabit Ethernet Passive Optical NetworkGPON Gigabit Passive Optical NetworkGR General recommendationGRIN Graded indexHDCM High dispersion compensating moduleHFC Hybrid Fiber CoaxIEEE The Institute of Electrical and Electronics EngineersIP Internet protocolISO International Standards OrganizationITU International Telecommunications UnionIXC Integra Cross ConnectLAN Local area networkLASER Light Amplification by Stimulated Emissions of RadiationLED Light-emitting diodeLGX Light Guide Cross ConnectLOC Latched optical couplingLWP Low water peakMCPC Mode-conditioning patchcordMEMS Microelectromechanical systemsMFD Mode field diameterMMF Multimode fiberMPO MultMSA Multi Source AgreementNA Numerical apertureNIST National Institute of Standards and TechnologyNM NanoMeterNZDS Nonzero dispersion shifted fiberOADM Optical add/drop multiplexerOAM&P Operations, administration, maintenance and provisioningOEO Optical electrical opticalOFL Overfilled launchOFSTP Optical fiber system test proceduresOI Optical isolatorOLT Optical line terminalOM2/3/4 Optical MultimodeONT Optical network terminalONU Optical network unitOSA Optical spectrum analyzer, optical sub-assembly or Optical Society of America.OSNR Optical Signal to Noise RatioOTDM Optical time division multiplexingOTDR Optical time domain reflectometerOTN Optical transport networkPDL Polarization dependent lossPIN Positive intrinsic negativePING Packet InterNet GrouperPLC Planar lightwave circuitPMD Polarization mode dispersionPON Passive optical networkPRBS Pseudo Random Binary SequenceQSFP+ Quad Small Form-Factor PluggableRIN Relative intensity noiseRML Restricted mode launchROADM Reconfigurable optical add/drop multiplexerRoHS Restriction of Hazardous SubstancesSAN Storage area networkSDH Synchronous digital hierarchySFF Small Form FactorSFP Small Form-Factor PluggableSMF Singlemode fiberSNR Signal-to-noise ratioSONET Synchronous optical networkSWDM Selective wavelength division multiplexingTHz Terra HertzTIA Telecommunications Industry AssociationTXM 1000baseT Cross-Connect MultirateUPC Ultra physical contactVCSEL Vertical cavity surface emitting laserVOA Variable optical attenuatorVP Virtual pathWAN Wide area networkWDM Wavelength division multiplexingWSS Wavelength selectable switchXPM Cross-phase modulationZWP Zero water peak
