far-end block error (FEBE)An indication returned to a transmitting node (source) that an errored block has been detected at the receiving node (sink). [T1.105-1988]
far-end crosstalkCrosstalk that is propagated in a disturbed channel in the same direction as the propagation of a signal in the disturbing channel.
far-end customer interfaceAn associated, loop signaling, customer installation located at the far end of the network transmission path from the network interface (NI) described in…
far-end receive failure (FERF)An indication returned to a transmitting link terminating equipment (LTE) upon receipt of a line AIS (alarm indication signal) code or detection of an…
far-field diffraction patternThe diffraction pattern of a source (such as an LED, ILD, or the output end of an optical fiber) observed at an infinite distance from the source.
far-field regionThe region where the angular field distribution is essentially independent of distance from the source.
Faraday effectA magneto-optic effect in which the polarization plane of an electromagnetic wave is rotated under the influence of a magnetic field parallel to the…
FAT(1) First Article Testing. (2) Factory Acceptance Test.
fat clientA client-centric computing model where software must be installed on each client in a network.
fatal errorA fatal error occurs in the SAX parser when a document is not well formed or otherwise cannot be processed. See also error, warning.
Fault"Fault" means adultery, alcohol abuse, drug abuse, physical abuse, domestic violence, abandonment or reckless spending.
fault managementIn network management, the set of functions that (a) detect, isolate, and correct malfunctions in a telecommunications network, (b) compensate for…
fault protection subsystemIn a facility power distribution system, the subsystem that provides a direct path from each power sink to the earth electrode subsystem.
Fault-ToleranceThe ability of a processor to maintain mission effectiveness after some subsystems failed.
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FAXShort for facsimile. A process of transmitting documents by scanning them to digital, converting to analog, transmitting over phone lines and reversing…
FCA product of hydrolysis of an IgG antibody, consisting of parts of the constant regions of two heavy chains held together by a disulphide bridge, but…
FC (Fibre Channel)A high-speed network technology typically used to build Storage Area Networks (SAN).
FC-ALFibre Channel-Arbitrated Loop. A type of Fibre Channel network in which devices are connected in a loop topology.
FC-GSFiber Channel Generic Services. An ANSI standard that specifies various Fibre Channel services.
FCC registration programThe Federal Communications Commission program and associated directives intended to assure that all connected terminal equipment and protective circuitry…
FCIAFibre Channel Industry Association. A trade association devoted to promoting Fibre Channel technology.
FCIP (Fibre Channel over IP)Fibre Channel over IP. A proposal advanced by the IETF's IP Storage Working Group for mapping Fibre Channel traffic directly onto IP, in order to…
FDAAn agency in the U.S. federal government whose mission is to protect public health by making sure that food, cosmetics, and nutritional supplements are…
FDCFinal Data Capture Once the fee, any correspondence, and/or drawings are matched with the application and all requirements have been met for issuance as a…
FDDIFiber Distributed Data Interface. An ANSI standard LAN architecture that uses optical fiber cable for high-speed transmission.
FDDI adapterAn adapter for connecting devices to an FDDI network.
FDMCommon abbreviation for Financial Disclosure Management, the online program to electronically file and manage financial disclosure reports.
FDMAAbbreviation for frequency-division multiple access.
FDMA (Frequency-division multiple-access)Frequency-division multiple-access (FDMA) is a mechanism for sharing a radio frequency band among multiple users by dividing it into a number of smaller…
FEAFederal Enterprise Architecture -- see Federal Enterprise Architecture for more
Feasibility StudyA study of the applicability or desirability of any management or procedural system from the standpoint of advantages versus disadvantages in any given…
FeatureA large, complex artifact, or part of a site, such as a hearth, cairn, housepit, rock alignment, or activity area.
feature attribute tableA table used to store attribute information for a specific coverage feature class. ARC/INFO maintains the first several items of these tables.
feature classA collection of geographic features with the same geometry type (such as point, line or polygon), the same attributes, and the same spatial reference.
feature codeA code (or codes) used to select/activate a service feature (e.g., forwarding, using two- or three-digit codes preceded by * or 1 1 or #, and which may…
Federal Acquisition RegulationThe primary regulation for use by federal executive agencies for acquisition of supplies and services with appropriated funds.
Federal Bridge Certification Authority (FBCA)The Federal Bridge Certification Authority consists of a collection of Public Key Infrastructure components (Certificate Authorities, Directories…
Federal Bridge Certification Authority MembraneThe Federal Bridge Certification Authority Membrane consists of a collection of Public Key Infrastructure components including a variety of Certification…
Federal Geodetic Control Committee (FGCC)a standards committee concerned with accuracy levels in geodetic control. Within the United States, coordinate control is based on the National Geodetic…
Federal Information Processing Standard (FIPS)A standard for adoption and use by Federal agencies that has been developed within the Information Technology Laboratory and published by the National…
Federal Information Processing Standards (FIPS)FIPS deals with a wide range of computer system components including the components of most GISs: hardware, storage media, data files, codes, interfaces…
Federal Information SystemAn information system used or operated by an executive agency, by a contractor of an executive agency, or by another organization on behalf of an…