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F
F - Flash
F - fahrenheit
FA - field artillery
FAA - Federal Aviation Administration
FAADC2 - forward area air defense command and control (Army)
FAADC3I - Forward Area Air Defense Command, Control, Communications, and Intelligence
FAADS - forward area air defense system
FAAR - forward area alerting radar
FAATSAT - FAA telecommunications satellite
FAC - File Access Code
FACNET - federal acquisition computer network
FACP - forward air control party
FADAC - field artillery digital automated computer
FADC2I - forward air defense command, control, and intelligence
FAEWS - fleet airborne electronic warfare system
FAISS - FORSCOM automated intelligence support system
FALCON - frequency agile low coverage netted
FAMSIM - family of simulations (simulators)
Fan - Unit - Cooling device for the node.
FANS - future air navigation system
FANS2 - future air navigation systems Phase 2 (FAA)
FAP - file access protocol
FAPES - force augmentation planning and execution system (JCS)
FAPM - functional activity program manager (DOD)
FAQ - frequently asked questions (Internet)
FAR - federal acquisition regulation
FARA - Federal Acquisition Reform Act
FASA - Federal Acquisition Streamlining Act
FASC - Fire and Air Support Center
FASC - Forward Area Signal Center
FASIC - function-and algorithm-specific IC
FAST - federal acquisition services for technology (GSA/FTS)
FAST - flow analysis system for TRANSCOM
FAST - forward area secondary imagery dissemination and tactical related applications (Army)
FASTC - Foreign Aerospace Science and Technology Center (USAF)
Fastload - A new type of neighbor load process that makes use of more trunk bandwidth than is normally available for intertask message exchanging.
FAT - file allocation tables
FATE - federated assessment and targeting enhancement (USAF)
FATT - Forward Area Teletype
Fault - Tolerant - A CPU or network that is resistant to software errors, power failures, and disk crashes.
FAX - facsimile
FBCB2 - Force XXI Battle Command Battalion/Brigade and Below
FBD - functional binary decomposition
FBIS - Foreign Broadcast Information Service
FBL - Federated Battle Labs
FBS - finance battlefield system
FC - fiber channel
FC-AL - fiber channel-arbitrated loop
FC-EL - fiber channel-enhanced loop
FC2S - FORSCOM C2 system
FCA - functional configuration audit
FCB - file control block
FCC - Federal Communications Commission
FCC - Flight Control Center (computer)
FCC - Federal Communications Commission
FCFS - first come first serve
FCI - Foreign Counterintelligence (FBI)
FCLC - fiber channel loop community
FCOM - Joint Forces Command
FCRB - future change review board
FCS - (Frame Check Sequence) - In bit-oriented protocols, a 16-bit field that contains transmission error-checking information, usually appended at the end of a frame. Also used in conjunction with First Customer Ship; the date that a new product is first shipped to a customer.
fctn - function
FD - failure density
FD - floppy disk
FDC - Fire Direction Center
FDC - floppy disk controller
FDC - First Digital Corps
FDCC - Fleet Deployable Communications Center
FDD - frequency division duplex
FDD - first digital division
FDDI - Fiber Distributed Data Interface
FDDM - Fire Direction Data Manager
FDDS - flag display distribution system
FDI - fault detection isolation
FDL - facility data link
FDM - formal development methodology
FDM - Functional Data Manager
FDM - (Frequency Division Multiplexing) - The transmission of two or more signals over a common path by using a different frequency band for each signal.
FDMA - frequency division multiple access
FDMIS - force development management information system
FDMP - Full Duplex Message Protocol
FDO - flexible deterrent option
FDR - future data radio
FDRR - flexible disc recorder reproducer
FDS - fire direction system
FDS - fault detection system
FDSE - full duplex switched Ethernet
FDSL - fixed directory subscriber list
FDUL - fixed directory unit list
FDX - full duplex
FEA - functional economic analysis
Feature - Modules - These modules (such as trunk, voice, and data) add capabilities to nodes and tailor nodes to meet customers' specific requirements. All nodes have common equipment, but they do not necessarily have feature modules.
FEBA - forward edge of the battle area
FEBE - (Far End Block Error) - An error indication that is provided for in the C-bit parity format.
FEC - Forward Error Correction
FECAT - Federal Electronic Commerce Acquisition Team
FECC - Federal Emergency Communications Coordinator
FECTA - forward error correction transmission adapter
FED - field emission display (device)
FED-STD - Federal Standard
FEDCAC - Federal Computer Acquisition Center (GSA/FTS)
FEDCIRC - Federal Computer Incident Response Capability
FEDD - family of electronic deceptive devices
Fedsim - Federal Systems Integration and Management Center
FEMA - Federal Emergency Management Agency
FEN - field engineering notice
FEP - front end processor
FEPI - front-end programming interface
FER - final evaluation report
FES - force entry switch
FET - field effect transistor
FEWS - follow-on early warning system
FEWS - future early warning system
FEX - federal internet exchange
FFD - frequency fill device
FFT - fast Fourier transform
FG - frame grabber
FGDC - Federal Geographic Data Committee
FGIPC - Federation of Government Information Processing Councils
FGRT - Fixed Ground Receive Terminal
FH - frequency hopping
FHMA - frequency hop multiple access
FHMX - frequency hopping multiplexer
FHSS - frequency hopped spread spectrum
FIA - future imagery architecture
FIABS - financial inventory accounting and billing system
Fiber - Optic Cable - A data transmission medium consisting of glass fibers. It offers increased bandwidth. LEDs send light to a receiver that converts the light into electrical signals.
FIC - Federal Information Center (GSA/FTS)
FIC - fleet intelligence center
FICCS - First in Command and Control System
FICO - Fingerprint Image Conversion Operation (FBI)
FICS - FAA Integrated Communications System
FICS - fingerprint image capture system (FBI)
FIDNET - Federal Intrusion Detection Network (see AIDC)
Field - Trial Site - The location of the tests performed on product prototypes (usually in-house and select client locations). These early releases are for test purposes and are performed prior to any first customer shipment.
FIF - fractal image format
FIFO - first-in first-out
FII - Federal information infrastructure
File - Server - A CPU containing files shared by everyone connected to a network.
FILO - first-in, last-out
Filtering - Allows an operator to search for events of a particular kind or object such as a class of card rather than scanning through all of them.
FIM - functional information manager (CIM)
FIN - finish flag, TCP header
FINL - initialize floppy disk
FIPS - Federal Information Processing Standard
FIR - finite impulse response
FIR - functional intelligence ratio
FIREFLEX - flexible fire support system
FIRMR - Federal Information Resources Management Regulation
FIRP - Federal Internetworking Requirements Panel
FIRS - Federal Information Relay Service (GSA/FTS)
FIRST - Forum of Incident Response (and) Security Teams
FIS - foreign intelligence service
FISINT - Foreign Instrumentation Signals Intelligence
FISS - foreign intelligence and security service
FISSP - Federal Information Systems Support Program (GSA/FTS)
FIST - fleet imagery support terminal
FIST - full-crew integrated trainer
FITL - fiber in the loop
FIWC - Fleet Information Warfare Center
FLAN - flying local area network
FLAPS - force level automated planning system
Flash - Memory - An in-circuit programmable non-volatile semiconductor technology applied to memory components. Flash memory is similar in application to EPROMs or what are commonly referred to as boot Proms, but flash memory has the advantage of being on-board programmable rather than being a plug-in component. Promina controller cards (PPM, PLM, and PSM) use flash memory for storing system software and configuration database data.
FLC - Federal Laboratory Consortium
FLC - foreign language committee
FLEWUG - Federal Law Enforcement Wireless Users Group
FLIR - forward looking infrared
FLIS - federal logistics information system
FLOPS - floating point operations per second
FLOT - forward line of own troops
Flow - Control - The capability of network nodes to manage buffering schemes in order to allow devices of differing data transmission speeds to communicate with each other.
FLT - fleet
FLTBCST - fleet broadcast
FLTCINC - Fleet Commander In Chief
FLTSAT - fleet satellite
FLTSATCOM - fleet satellite communications
FM - frequency modulation
FM - field manual (when followed by a number)
FMEA - failure modes and effects analysis
FMECA - failure mode effects and critical analysis
FMF - fleet marine force
FMM - frequency management module
FMO - Frequency Management Office
FMP - Frequency Management Plan
FMS - Financial Management Service (Treasury)
FMS - Forms Management System
FMV - full motion video
FN - feeder node
FNARS - FEMA national radio system
FNATS - FEMA national teletype system
FNAVS - FEMA national voice system
FNBDT - future narrowband digital terminal
FO - fiber optic
FO - Flash Override
FOA - fiber optic applique
FOBC - fiber optic bulkhead connector
FOC - fiber optic cable
FOCA - font object content architecture
FOCA - fiber optic cable assembly
FOCI - foreign ownership, control or influence
FOCS - fiber optic cable system
FOCSI - fiber-optic control system integration
FOHMD - fiber-optic helmet-mounted display/device
FOIA - Freedom of Information Act
FOIPA - Freedom of Information/Privacy Act
FOIRL - fiber optic inter repeater link
FOIU - fiber optic interface unit
FOL - forward operating location
FOM - fiber optic modem
FOMAU - Fiber Optic Media Access Unit
FOPEN - foliage penetration radar
FORGN - foreign
FORSCOM - US Army Forces Command
FORTAS - forward observer remote target acquisition system
FORTE - fast on-orbit recording of transient events
FORTRAN - formula translator
FOSIC - Fleet Ocean Surveillance Information Center
FOT - frequency of optimum transmission
FOTLAN - fiber optic tactical LAN
FOTS - fiber optic transmission system
FOUO - For Official Use Only
Four - Wire - A circuit path using separate pairs for send and receive. This term is also used when referring to digital channels that inherently have discrete send and receive paths, regardless of the number of pairs (or other media) used.
FPA - focal plane array
FPCB - field-programmable circuit board
FPD - flat panel display
FPF - final protective fire
FPGA - field programmable gate array
FPI - functional process improvement
FPIC - field-programmable interconnect chip
FPID - field-programmable interconnect device
FPIS - forward propagation ionospheric scatter
FPKI - Federal Public Key Infrastructure
FPL - final protective line
FPLA - field programmable logic-array
FPLMTS - future public land mobile telephone services
FPP - fixed path protocol
FPP - floating point processor
FPS - frames per second
FPU - floating-point unit
FQDN - fully qualified domain name
FR - frequency response
Fractional - T1/E1 - A fractional line is subchannel of a full T1/E1 line. There are 24/31 fractional T1/E1 lines, each with a bandwidth of 64 kbps. This is an economical measure to fit the requirements where the full DS1 is not needed. Individual DS0 slots may be switched to different services or locations. The user may provide a full DS1 from each end of the circuit, but the central office extracts only those DS0s that are paid for and routes them to the required service or location.
FRAD - frame relay assembler/dissembler
FRAGO - fragmentary order
FRAM - ferro-electric random-access memory
Frame - (Data) - In bit-oriented protocols, data is formatted in frames for transmission. Each frame consists of a start flag followed by an address field, data field, frame check sequence, and a stop flag.
Frame - (DS1/T1) - A 193-bit entity, consisting of 192 information bits (24 channels, 8 bits each) plus one framing bit. T-1 frames occur at the rate of 8000 per second. Twelve frames make a standard DS1/D4 format superframe. On modern ESF T-1 facilities, 24 frames are used to make an Extended superframe, wherein the 193rd bit in the frames is used for various functions in addition to framing.
Frame Alignment Signal - The frame alignment signal (F1, F0) identifies the subframe and, accordingly, all the control-bit time slots.
Frame Slip - A controlled frame slip occurs on a trunk that is not synchronously timed. When sufficient clock drift has accumulated, frame-alignment buffers on the trunk are reset.
FRC - frame recovery circuit
FRCS - Federal Reserve communications system
freq - frequency
Frequency Response - The change in attenuation with frequency relative to the attenuation at a reference frequency. Also called attenuation distortion.
FRERP - federal radiological emergency response plan
Friendload - The process of loading code from a friend node (a node containing the desirable software that is not directly connected to the node being loaded). Contrast with neighbor node.
FRMA - functional requirements management agency (CALS)
FRO - frequency reference oscillator
FRP - Federal Radionavigation Plan
FRP - Federal Response Plan
FRPA - fixed reception pattern antenna
FRPI - flux reversals per inch
Fs - signal framing
FSAN - full service access network
FSATS - fire support automated test system
FSB - fire support battalion
FSC - fire support coordinator
FSCATT - fire support combined arms tactical trainers
FSCS - fire support control system
FSDPSK - filtered symmetric differential phase-shift keying
FSE - full screen editor
FSE - fire support element
FSEN - future small extension node
FSF - Free Software Foundation
FSFM - full-screen full-motion
FSIC - forward sensor interface and control
FSK - Frequency Shift Keying
FSN - FEMA switched network
FSN - full service network
FSO - field security operations
FSO - fire support officer
FSP - functionality, security and performance
FSPM - formal security policy model
FSRF - flood search routing function
FSSG - force service support group
FSTC - Financial Services Technology Consortium
FSTS - federal secure telephone service
FT - fault tolerance
Ft - terminal framing
ft - foot, feet
FT1 - fractional T1
FTAM - file transfer, access and management
FTDMA - frequency time-division multiple-access
FTEWA - force threat evaluation and weapon assignment
FTIR - Fourier transform infrared
FTLS - formal top level specification
FTM - File Transfer Manager
FTN - fiber transmission network
FTP - fiber termination panel
FTP - File Transfer Protocol
FTS - Federal Technology Service (GSA/FTS)
FTS - Federal Telecommunications System
FTS2000 - Federal Telecommunications System 2000 (GSA/FTS)
FTS2001 - Federal Telecommunications System 2001 (GSA/FTS)
FTSAT - Flyaway Tri-band Satellite Terminal
FTSC - Federal Telecommunication Standards Committee
FTSP - Federal Telecommunication Standards Program
FTTC - fiber to the curb
FTTH - fiber to the home
FTX - Field Training Exercise
FUD - fire unit display
FUI - file update information
Full Duplex - Transmission occurs simultaneously in two directions.
Functional Area Menu - A menu in the Operator Interface where most operator commands are initiated such as installing or modifying cards, ports, and links; querying the system and the Event log; monitoring alarms; reserving bandwidth; and performing diagnostics.
Fuse Disconnect Barrier - Used for some CEPT trunk applications in the United Kingdom when the equipment connected to the node is not certified to BS 6301.
FUWG - Fleet Users Working Group
FVS - foreign visits system
FVT - full video translation
fwd - forward
FWPC - Federal Wireless Policy Committee
FWRO - Federal Wireless Review Office
FWTS - Federal Wireless Telecommunications Services (GSA/FTS)
FWUF - Federal Wireless UsersÕ Forum
FX - (Foreign Exchange) - Usually seen in the context of FXS (foreign exchange subscriber) and FXO (foreign exchange office) and available through the DS1 port Signalling Protocol parameter.
FXO - Foreign Exchange Office
FXO GDSTRT (Foreign Exchange Office Ground Start) - Differs from the FXO LPSTRT in the following manner: request for service (off-hook) is accomplished by asserting a ground on the ring lead, and then applying a loop closure. Disconnect (on-hook) is accomplished by an open loop.
FXS - Foreign Exchange Service
FXS - Foreign Exchange Station
FXS LPSTRT (Foreign Exchange Station Loop Start) - This signaling protocol is used (at the station end) on facilities interfacing a 2-wire station to a foreign (distant) PBX or C.O. and combines transmission and signaling functions on a single pair of wires. On- and off-hook supervision is accomplished by an open loop and loop closure respectively.
FYDP - Future Years Defense (Program) Plan
FYP - five year plan
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