EMI Electromagnetic interferenceEnFP End fault protectionEPA Enhanced performance architectureESD Electrostatic dischargeF-SMA Type of optical fiber connectorFAN Fault numberFCB Flow control bit; Frame count bitFOX 20 Modular 20 channel telecommunication system for speech, data andprotection signalsFOX 512/515 Access multiplexerFOX 6Plus Compact time-division multiplexer for the transmission of up to sevenduplex channels of digital data over optical fibersFPN Flexible product namingFTP File Transfer ProtocolFUN Function typeG.703 Electrical and functional description for digital lines used by localtelephone companies. Can be transported over balanced andunbalanced linesGCM Communication interface module with carrier of GPS receiver moduleGDE Graphical display editor within PCM600GI General interrogation commandGIS Gas-insulated switchgearGOOSE Generic object-oriented substation eventGPS Global positioning systemGSAL Generic security applicationGSE Generic substation eventHDLC protocol High-level data link control, protocol based on the HDLC standardHFBR connector type Plastic fiber connectorHLV circuit Hazardous Live Voltage according to IEC60255-27HMI Human-machine interfaceHSAR High speed autoreclosingHSR High-availability Seamless RedundancyHV High-voltageHVDC High-voltage direct currentIDBS Integrating deadband supervisionIEC International Electrical CommitteeIEC 60044-6 IEC Standard, Instrument transformers – Part 6: Requirements forprotective current transformers for transient performanceIEC 60870-5-103 Communication standard for protection equipment. A serial master/slave protocol for point-to-point communicationIEC 61850 Substation automation communication standardIEC 61850–8–1 Communication protocol standard1MRK 514 027-UEN D Section 10Glossary650 series 61Installation manual© Copyright 2017 ABB. All rights reserved