Telecommunications abbreviations and acronyms Suggest an abbreviation We’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 acronyms 10 GbE 10 Gigabit Ethernet 10 GFC 10 Gigabit Fibre Channel 1000BaseT 1000 Megabits per Second, twisted-pair cable version of an IEEE 802.3 network 100BaseT 100 Megabits per Second, twisted-pair cable version of an IEEE 802.3 network 100g 100 Gigabits 10G-EPON 10 Gbits Ethernet Passive Optical Network 3G Third-Generation wireless 4G Fourth-Generation wireless ADM Add/drop multiplexing ANSI American National Standards Institute APC Angled physical contact APD Avalanche Photodiode ASOF Application specific optical fiber ATM Asynchronous transfer mode AWG Arrayed waveguide gratings BER Bit error rate BERT Bit error rate tester CATV Community antenna television CD Chromatic dispersion CFP 100G Form-Factor Pluggables CLEC Competitive local exchange carrier CSFP Compact Small Form-Factor Pluggable CVR Converter Module CWDM Coarse wavelength division multiplexing dB Decibel dBm Decibels relative to one milliwatt DCF Dispersion-compensating fiber DFB Distributed feedback DGD Differential group delay DMD Differential mode delay DOCSIS Data Over Cable Service Interface Specification DPOE Docsis Provisioning Over Ethernet DSF Dispersion-shifted fiber DUT Device Under Test DWDM Dense wavelength division multiplexing EDFA Erbium-doped fiber amplifier EIA Electronic Industries Alliance EPON Ethernet Passive Optical Networks ER Extinction Ratio FBG Fiber Bragg grating FBT Fused biconical taper FEC Forward Error Correction FDDI Fiber distributed data interface FOTP Fiber optic test procedure FOTS Fiber optic transmission system FP Fabry-Perot laser FSWDM Full spectrum wavelength division multiplexing FTTB Fiber to the business or building FTTC Fiber to the curb or customer FTTD Fiber to the desk FTTH Fiber to the home FTTN Fiber to the neighborhood FTTO Fiber to the office FTTP Fiber to the pedestal or pedestal FTTx Fiber to the user FWM Four wave mixing GFF Gain flattening filter GHz Gigahertz GEPON Gigabit Ethernet Passive Optical Network GPON Gigabit Passive Optical Network GR General recommendation GRIN Graded index HDCM High dispersion compensating module HFC Hybrid Fiber Coax IEEE The Institute of Electrical and Electronics Engineers IP Internet protocol ISO International Standards Organization ITU International Telecommunications Union IXC Integra Cross Connect LAN Local area network LASER Light Amplification by Stimulated Emissions of Radiation LED Light-emitting diode LGX Light Guide Cross Connect LOC Latched optical coupling LWP Low water peak MCPC Mode-conditioning patchcord MEMS Microelectromechanical systems MFD Mode field diameter MMF Multimode fiber MPO Mult MSA Multi Source Agreement NA Numerical aperture NIST National Institute of Standards and Technology NM NanoMeter NZDS Nonzero dispersion shifted fiber OADM Optical add/drop multiplexer OAM&P Operations, administration, maintenance and provisioning OEO Optical electrical optical OFL Overfilled launch OFSTP Optical fiber system test procedures OI Optical isolator OLT Optical line terminal OM2/3/4 Optical Multimode ONT Optical network terminal ONU Optical network unit OSA Optical spectrum analyzer, optical sub-assembly or Optical Society of America. OSNR Optical Signal to Noise Ratio OTDM Optical time division multiplexing OTDR Optical time domain reflectometer OTN Optical transport network PDL Polarization dependent loss PIN Positive intrinsic negative PING Packet InterNet Grouper PLC Planar lightwave circuit PMD Polarization mode dispersion PON Passive optical network PRBS Pseudo Random Binary Sequence QSFP+ Quad Small Form-Factor Pluggable RIN Relative intensity noise RML Restricted mode launch ROADM Reconfigurable optical add/drop multiplexer RoHS Restriction of Hazardous Substances SAN Storage area network SDH Synchronous digital hierarchy SFF Small Form Factor SFP Small Form-Factor Pluggable SMF Singlemode fiber SNR Signal-to-noise ratio SONET Synchronous optical network SWDM Selective wavelength division multiplexing THz Terra Hertz TIA Telecommunications Industry Association TXM 1000baseT Cross-Connect Multirate UPC Ultra physical contact VCSEL Vertical cavity surface emitting laser VOA Variable optical attenuator VP Virtual path WAN Wide area network WDM Wavelength division multiplexing WSS Wavelength selectable switch XPM Cross-phase modulation ZWP Zero water peak
