Avionics201012 PDF

December 2010
Aerospace
Acronym
Guide
More than 3,000 aviation electronics acronyms

Updated from the pages of Avionics

Covering all sectors of civil and military aviation

Also in this issue: Databus Product Focus
www.avtoday.com/av
01_AVS_120110_Cover_p01.indd 1 11/12/10 9:52:03 AM

2010 Rockwell Collins, Inc. All rights reserved.
Every day, thousands of pilots depend on their Pro Line 21 avionic systems, now with LPV capability available
TM
on 15 aircraft types, to safely operate on more runways and in more low visibility conditions. Our continued
commitment to innovation of this proven system includes enhancements such as graphical weather, electronic
charts, taxi maps with aircraft position, and much more. So pilots have the tools they need to successfully
complete their missions. To see where were headed, visit us at rockwellcollins.com/proline21.
RC_LPV Ad_Avionics Mag_DEC.indd 1 10/22/10 10:27 AM
02_AVS_120110_TOC_p02_03.indd 2 11/12/10 9:54:56 AM

inside
December 2010 Vol. 34, No. 12
magazine
Aerospace Acronym Guide

Avionics proudly presents the fifth
edition of our biennial Aerospace
Acronym & Abbreviation Guide, one
of the most comprehensive refer-
ences available in aviation electron-
ics. Compiled from the magazines
pages and publicly available lists,
this edition reflects major industry
trends over the past decade, such
as the increasing integration of air
and ground operations ............. 8
product focus
Databus ............................ 36
Movement toward distributed control architectures in
commercial aircraft favors Mil-Std-1553 solutions
By Barry Rosenberg
Avionics Magazine holds four Royal Aeronautical

Society Journalism Awards, including Journalist of the
Year, plus the American Business
Medias prestigious Jesse H. Neal
Journalism Award.
The editors welcome articles, engineering and technical reports, new product information, and
other industry news. All editorial inquiries should be directed to Avionics Magazine, 4 Choke
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email: bcarey@accessintel.com
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02_AVS_120110_TOC_p02_03.indd 3 11/12/10 9:56:09 AM

3.3V Single Supply
ARINC 429 Line Driver EDITORIAL
EDITOR-IN-CHIEF
Bill Carey
301-354-1818
Complete ARINC 429 solution using single 3.3V supply bcarey@accessintel.com
MANAGING EDITOR
Emily Feliz
301-354-1820
efeliz@accessintel.com
CONTRIBUTING EDITORS
Frank Alexander, Frank Colucci, Ron Laurenzo,
George Marsh, Ed McKenna,
James W. Ramsey, Jean-Michel Guhl
ADVERTISING & BUSINESS

PUBLISHER
Tish Drake
800-325-0156
tdrake@accessintel.com
DISTRICT MANAGER/EASTERN U.S., CANADA, INTERNATIONAL

Joe Milroy
215-598-0933
jmilroy@accessintel.com
DISTRICT MANAGER/WESTERN U.S. AND CANADA

Susan Joyce
480-607-5040
sjoyce@accessintel.com
DESIGN & PRODUCTION

GRAPHIC DESIGNER Joy Park
PRODUCTION MANAGER Tony Campana
t"3*/$WPMUBHFMFWFMTBVUPNBUJDBMMZHFOFSBUFE 301-354-1689
on chip tcampana@accessintel.com
t6TFXJUI)PMU)*QSPUPDPM*$GPSBDPNQMFUF AUDIENCE DEVELOPMENT

3.3V ARINC 429 solution AUDIENCE DEVELOPMENT DIRECTOR Sarah Garwood
sgarwood@accessintel.com
FULFILLMENT MANAGER George Severine
t'VMMZDPNQBUJCMFXJUI7'1(""3*/$ gseverine@accessintel.com
protocol solutions SUBSCRIPTION SERVICES/BACK ISSUES 847-559-7314
t%JHJUBMMZTFMFDUBCMFSJTFBOEGBMMUJNFT LIST SALES

Statlistics
t5SJTUBUFPVUQVUT Jen Felling
203-778-8700; j.felling@statlistics.com
t&YUFOEFEUFNQFSBUVSFSBOHF$UP$
For more information about Holts ARINC 429 or MIL-STD-1553 products, contact a Holt representative at: REPRINTS
The YGS Group
Tel: (949) 859-8800 1-800-290-5460; avionics@theYGSgroup.com
E-mail: sales@holtic.com
Web: www.holtic.com Access Intelligence, LLC
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Looking for employment within the aviation industry?

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03_AVS_120110_AD_p04_05.indd 4 11/12/10 9:58:19 AM

Are you a REAL Do you just play
OR
helicopter operator? one on TV?
Fred Smart, CEO, SmartCopters Brandon WrongWay, CEO, WrongWay Flying Service
Attended HELI-EXPO
Stayed home

Learned how to reduce operating costs by 25%
Has trouble managing costs

Stayed current on latest technology

Not achieving maximum efficiency
and newest products

Met face-to-face with qualified prospects
No new customer contact

Distinguished his company
Out of sight out of mind
from his competitors

Gained 3 new clients
No new business
REAL helicopter operators attend HELI-EXPO !
Register today! Interested in joining HAI and saving money on registration? Go to www.rotor.com/join
www.rotor.com/heliexpo or email mbr@rotor.com towww.avtoday.com/av
find out all the benefitsApril
of membership.
2010 Avionics Magazine 5
+(/,(;32BB[LQGG $0
03_AVS_120110_AD_p04_05.indd 5 11/12/10 9:59:08 AM

people
Joe Hof relationships with sell and buy side financial analysts, as well as
Metron Aviation, Dulles, Va., appointed communications between Rockwell Collins and the investing
Joe Hof director of business Develop- public and shareowners.
ment for Global ATM Operations. He has held various leadership positions within the Finance
Before joining Metron, Hof was the organization since joining Rockwell Collins in 1995. Buesing
national operations manager of inter- most recently served as controller, Operations, since 2009.
national operations at FAAs Air Traf-
fic Control System Command Center FreeWave Appointments
(ATCSCC), where he was responsible Data radio manufacturer FreeWave Technologies, of Boulder,
for developing Traffic Flow Manage- Colo., named Clive Winkler chief technology officer. The com-
ment (TFM) processes and procedures Joe Hof pany also appointed Ashish Sharma as chief marketing officer.
with international air navigation service providers. Hof also Prior to FreeWave, Winkler was vice president, Advanced
contributed to the development of the international opera- Development, at Cubic Defense Applications. Sharma previ-
tions procedures utilized on the operational floor, aided in the ously was vice president, marketing, for Alvarion, where he
development of national procedures for projects such as Traf- participated in development and adoption of 4G technologies.
fic Management Advisor and served as facilitator for national FreeWave has added 14 positions in the past several months,
Collaborative Decision Making meetings. including Ralph Oriscello as business development executive.
Previously, Hof led the development of Air Traffic Flow
Management (ATFM) between the United States and Mexico Howard Lefkowitz
and between other states in the Caribbean and South America Row 44, Westlake Village, Calif., named Howard Lefkowitz
regions. He was the rapporteur of the Caribbean/South Ameri- chief commercial officer. Lefkowitz will also open Row 44s
ca region ATFM Task Force and assisted ICAO with the devel- new Las Vegas office, and will sit on the companys board of
opment of a global ATFM manual. directors. In his new role, Lefkowitz, the former VEGAS.com
CEO, will be responsible for marketing and branding Row 44s
Steve Buesing in-flight broadband services for commercial airlines.
Steve Buesing has been appointed vice president, Investor Rela- He also will secure content partnerships for its in-flight menu
tions, for Rockwell Collins, of Cedar Rapids, Iowa. of broadband services, including on-demand movies, live televi-
Buesing will be responsible for developing and maintaining sion, e-commerce and destination services.
6 Avionics Magazine December 2010 www.avtoday.com/av
05_AVS_120110_People_p06.indd 6 11/12/10 10:01:24 AM

calendar
December May
8 Issues in Air Traffic Management, an Avionics Magazine webinar, noon to 2-5 16th Annual International Symposium on Aviation Psychology, Wright
1 p.m., EST. For more information, visit www.aviationtoday.com/webinars. State University and Wright Patterson Air Force Base, Dayton, Ohio. Visit
www.wright.edu/isap.
2011
17-19 European Business Aviation Convention and Exhibition (EBACE),
January Geneva PALEXPO and Geneva International Airport, Geneva, Switzerland. Visit
1819 Asian Business Aviation Conference & Exhibition (ABACE), Asia- www.ebace.aero.
World Expo and Hong Kong Business Aviation Center, Hong Kong. For more June
information, visit www.abace.aero/2011.
20-26 Paris Air Show, Le Bourget, Paris. Visit www.paris-air-show.com.
March
July
5-8 Heli-Expo 2011, Orange County Convention Center, Orlando, Fla. Contact
Helicopter Association International, phone 703-683-4646 or visit 20-23 Airborne Law Enforcement Association (ALEA) Annual Conference
www.heliexpo.com. and Exhibition, Ernest N. Morial Convention Center, New Orleans. Contact
ALEA, phone 301- 631-2406 or visit www.alea.org.
8-10 ATC Global 2011, Amsterdam RAI Center, Amsterdam, the Nether-
lands. Visit www.atcevents.com. August
April 16-19 Association for Unmanned Vehicle Systems International (AUVSI)
Unmanned Systems North America, Walter E. Washington Convention Cen-
5-7 Aircraft Interiors Expo, Hamburg Messe, Hamburg, Germany. For infor- ter, Washington, D.C. Visit www.auvsi.org.
mation, phone +44 (0)208 271 2174 or visit www.aircraftinteriorsexpo.com.
16-21 MAKS 2011 International Aviation & Space Salon, Zhukovsky, Mos-
11-14 Navy League Sea-Air-Space Exposition, Gaylord National Resort & cow Region, Russia. Visit www.aviasalon.com.
Convention Center, National Harbor, Md. Visit www.seaairspace.org.
September
17-20 Quad A Annual Convention, Gaylord Opryland Hotel and Convention
Center, Nashville, Tenn. Visit www.quad-a.org. 11-15 Airline Passenger Experience Association (APEX) Conference & Exhi-
bition, Washington State Convention Center, Seattle. Visit http://apex.aero.
18-21 AMC/AEEC Joint Meetings, Marriott Downtown, Memphis, Tenn.
Contact ARINC Industry Activities, phone 410-266-2008 or visit 12-15 Autotestcon 2011, Baltimore Convention Center, Baltimore, MD.
www.aviation-ia.com/amc. Visit http://autotestcon.com.
06_AVS_120110_Calendar_p07.indd 7 11/12/10 10:02:46 AM

Advancing System
Integration with
Ethernet
TTEthernet (SAE AS6802) for Time-, Mission- and
Safety-Critical Systems
The capabilities of system

integration technologies impact
electronics platform complexity,
software design methodology, application
design, system integration, reuse, upgrades, obsoles-
cence management and certification. The right system integra-
tion infrastructure enables design of less complex
software-centric systems at lower lifecycle cost. New Quality Of
Service (QoS) enhancements and protocol standards such as
TTEthernet (SAE AS6802) guarantee strictly deterministic computing
and networking performance for time-, mission-, and safety-critical
functions in advanced Ethernet-based integrated systems.
00_AVS_120110_TechReport.indd 1 11/12/10 1:59:27 PM

Time-triggered QoS enhancements
for Ethernet satisfy requirements of
backplane and backbone applications
in aerospace, automotive, energy pro-
duction and industrial systems.
DO-254 compliant TTEthernet
switches enable hard real-time mes-
saging, redundant networking, and fully
support ARINC 664-P7 protocol ser-
vices for avionics, vetronics and critical
control architectures.
TTEthernet is suited for a broad
TTEthernet enables synchronous time-triggered, rate-constrained and best-effort traffic in shared
range of demanding avionics and networks.
vetronics applications benefiting
from minimized system complexity TTEthernet: A Strictly Deterministic backbone and switched fabrics (e.g.,
and reduced size, weight and power Ethernet Service OpenVPX or ATCA backplane).
(SWaP). TTEthernet (SAE AS6802) is an Ethernet Time-triggered messages are strictly
protocol service, designed by aerospace deterministic and have fixed latency,
Ethernet in Critical Applications and automotive network experts. It message order and s-jitter, and can-
Ethernet is a family of frame-based complements IEEE 802.3 Ethernet and not be influenced by asynchronous
communication standards and a versa- provides strict determinism, hard real- network traffic. A TTEthernet switch can
tile networking technology, which enjoys time messaging, fault-tolerant synchro- successfully emulate circuit-switching
tremendous support in different com- nization, synchronous communication, behavior on top of an asynchronous
mercial and industry applications. How- robust TDMA partitioning and supports packet-switched network.
ever, Ethernet was not designed for use design of non-redundant, double, triple The system time is created by the
in highly critical embedded applications. and quad-redundant systems. execution of distributed clock syn-
It relies on asynchronous com- TTEthernet services execute network chronization algorithms defined in SAE
munication and statistical bandwidth algorithms utilizing standard asynchro- AS6802. It is based on continuous
multiplexing which imposes severe con- nous messaging and standard Ethernet adjustments of local clocks in the sys-
straints on resource sharing and deter- frame format, without modifying any of tem, using a two-step approach (see
ministic, real-time operation in complex the existing Ethernet capabilities. TTEth- image).
distributed systems. This severely limits ernet allows different traffic classes on The TTEthernet timebase is designed
design of advanced integrated systems. one switch: time-triggered (synchro- to be resistant against multiple faults
One way around those limitations is to nous), rate-constrained and best-effort, and complicated fault scenarios. This
use other specialized networks (e.g., to operate in one shared network. guarantees continuous system syn-
Fibre Channel, Infiniband, FireWire, or Synchronous time-triggered com- chronization for time-triggered com-
RapidIO) and overcome the Ethernet munication is congestion-free, hard real- munication driven by time progression.
capability gap. Another approach is to time and independent of the network All algorithms are formally verified by
add missing capabilities to Ethernet load. Therefore, TTEthernet switches aerospace, automotive, and defense
using QoS enhancements in the form can be used for both high-speed experts.
of protocol service
standards such as
priority-based VLAN
(IEEE 802.1Q), loss-
less and low-latency
IEEE DCB, avion-
ics ARINC 664-P7
standard or critical
embedded system
networking stan-
dard SAE AS6802
(TTEthernet). This
allows use of Ether-
net for different criti-
cal embedded sys-
tem applications. Two-step synchronization algorithm

not have any issues with integration and
performance of critical time-triggered
datastreams, which could save months
in program schedule and thus improve
time-to-market.
With ARINC 664-P7 service imple-
mented on a TTEthernet switch, the user
will be able to design complex ARINC
664-P7 networks with synchronous
audio/video streaming and hard real-
time functions and efficiently use avail-
able bandwidth. In addition, TTEthernet
services support design methodologies
which can reduce complexity, enhance
design of system architectures, simplify
software applications, and minimize sys-
tem lifecycle costs.
TTEthernet Applications
TTEthernet is standardized with the
Society of Automotive Engineers (SAE)
and will be released in 2011. Beyond
TTEthernet services as Network Hypervisor: AS6802 service and A664-P7 services can work on one commercial and defense system appli-
switch. cation, critical energy, industrial and
Dataflow Integration and Bandwidth audio and video can be easily integrated telecom infrastructure, as well as the
Partitioning into large ARINC 664-P7 networks automotive industry, can profit from its
TTEthernet protocol services establish a using time-triggered messages, without capabilities.
network hypervisor capability via time- influencing other distributed functions Production programs that plan to use
partitioning (TDMA bandwidth partition- integrated in the network. COTS components compliant with SAE
ing). This allows different types of traffic From the perspective of the ARINC AS6802 include NASAs Orion space-
to reliably operate in a shared Ethernet 664-P7 network designer and integrator, craft in the scope of the U.S. human
network. time-triggered (SAE AS6802) messages spaceflight program. Lockheed Martin
TTEthernet services provide robust can be seen as ARINC 664-P7 mes- works on several advanced integrated
isolation of synchronous and asynchro- sages with fixed latency and jitter, and system programs using this technology.
nous data streams and help to emulate the network design can still rely on best Due to its ARINC 664-P7 capability and
physical separation of different distrib- practices for avionics network design DO-254 Level A compliance, TTEthernet
uted functions with dedicated network associated with the ARINC 664-P7 stan- switch modules are suitable for appli-
resource. dard. As an advantage, the designer will cation in commercial aircraft systems,
Finally, this allows seamless integra-
tion of time-triggered communication
and rate- constrained ARINC 664-P7
service on one switch.
ARINC 664-P7 with A/V and Hard

Real-Time
SAE AS6802 (TTEthernet) and ARINC
664-P7 target similar challenges in
avionics design, but use very different
operation principles. Time-triggered
messages are driven by the progression
of time, while ARINC 664-P7 relies on
asynchronous rate-constrained commu-
nication with defined maximum latency.
SAE AS6802 (TTEthernet) communi-
cation complements ARINC 664-P7 with
strictly deterministic behavior. Time-
critical (hard real-time) applications,

and offer an extended set of network- ical functions, and simplify coordination technologies. For example, the lack of
ing capabilities for time-, mission-, and of critical functions. With TTEthernet it is robust bandwidth partitioning and the
safety-critical applications. possible to emulate conflict-free shared capability to run both hard real-time
system memory via periodic and syn- controls and less demanding real-time
Reducing System Complexity chronized global data exchange to guar- or soft time functions, either mandates
A communication network is an essen- antee high levels of software abstraction. separation of physical resources and
tial part of a total distributed software This minimizes application design effort, design of hierarchical architectures
and hardware platform. The platform code size, and exposure to transient or limits efficient use of computing
influences sharing of computing and faults or unintended system states. resources.
networking resources, helps align oper- With ARINC 664-P7 services added In a case where system integration
ation of distributed functions, constrains to the TTEthernet switch, the designer allows placement of functions anywhere
the number of system states, and mini- has freedom to utilize different types of in the vehicle or aircraft without impact
mizes related complexity. The objective QoS and design methodologies using a on function performance, there are
of the platform is to minimize system shared TTEthernet network infrastruc- countless opportunities to design more
integration and application design effort, ture. efficient systems and architectures.
and simplify certification, modification, As a result there is a direct link It is fair to say that TTEthernet capa-
upgrades, reuse, incremental modern- between communication network capabilities close the gap between federated
ization and obsolescence management. bilities, related complexity and lower and integrated architectures, and rep-

By providing unambiguous definition system lifecycle cost for advanced inte- resent a new tool for system architects
of temporal behavior and key system grated systems. utilizing high-bandwidth Ethernet as a
interfaces at the network level, time- system integration technology of choice.
triggered services in TTEthernet support COTS-Based System Platforms This simplifies design of advanced
less complex distributed computing and

networking, enhance resource sharing (or
and Architectures
System architecture design decisions
integrated platforms and reconfigurable

architectures based on open COTS
separation) among critical and non-crit- are influenced by available network standards.
Deterministic
Networks with
TTP and TTEthernet

DO-254/DO-178B Level A

TTEthernet / TTP TTEthernet Switches COTS Components

Development systems 100 Mbit/s or 1 Gbit/s DO-254 - controllers
Network design tools IEEE 802.3 compatible DO-160E robust physical layers
End systems - PMC boards Protocol services on switch: DO-178B drivers/middleware
Test equipment ARINC 664-P7
SAE AS6802
www.tttech.com

AEROSPACE
ACR O N Y M
& Abbreviation Guide
14 CFR Title 14 of the Code of Federal Regulations AAL above aerodome level ACNSS advanced communication/navigation/
1090 ES 1090 MHz extended squitter AALC autonomous approach landing capability surveillance system
3D, 4D three- or four-dimensional AAMP advanced architecture microprocessor ACO Aircraft Certification Office (FAA)
3G third generation AAR Automated Aerial Refueling ACP audio control panel
3GCN third-generation cabin network AATD Aviation Applied Technology Directorate ACS active control system
4DT 4-Dimensional Trajectories (U.S. Army) ACS aerial common sensor
4096 Code combinations of four-digit transponder AATT advanced air transportation technology ACS audio control system
code AAS advanced automation system (FAA) ACT active
ABC automatic brightness control ACTC airport traffic control towers
A ABCS Army Battle Command System ACTD advanced concept technology demonstration
A ampere(s) ABSAA Airborne Sense and Avoid ACU aircraft communications system
A autotuned navaid AC advisory circular ACU antenna control unit
A-BPSK aviation binary phase shift keying AC alternating current ACU apron control unit
A-QPSK aeronautical quadrature phase shift keying AC2 Dolby surround ACU autopilot control unit
A-SMGCS advanced surface movement guidance and ACAA Air Carrier Association of America AD airworthiness directive (FAA)
control systems ACAC air-cooled air cooler ADA Air Defense Artillery
A/B autobrake ACAMS aircraft condition analysis management ADAHRS air data attitude heading reference system
A/C aircraft system ADAS automated weather observing system data
A/D analog-to-digital ACARS aircraft communications addressing and acquisition system
A/FD Airport/Facility Directory reporting system ADB airport database
A/G air/ground; air to ground ACAS airborne collision avoidance system ADC air data computer
A/L airline ACC active clearance control ADC Air Defense Command
A/L autoland ACC airspace control center ADC analog to digital converter
A/N alphanumeric ACC area control center ADE application development engineer
A/P autopilot ACD automatic conflict detection ADF automatic direction finding
A/T autothrottle ACDO Air Carrier District Office ADG air-driven generator
A/V aircraft/vehicle ACE actuator control electronics ADI attitude director indicator
A&P airframe and power plant ACE advanced certification equipment ADIRS air data inertial reference system
AAC aeronautical administration communications ACG Assessment Compliance Group ADIRU air data inertial reference unit
AAC airline administrative communications ACI-NA Airport Council International - North America ADIZ Air Defense Identification Zone
AAIB Air Accident Investigation Branch ACIPS airfoil cowl ice protection system ADL aeronautical data link
(U.K. equivalent of NTSB) ACF area control facility ADLP airborne data link protocol
AAF airway facilities service ACK acknowledgment ADLP aircraft data link processor (Mode S)
AAI Airline Avionics Institute ACM adjacent center metering ADM air data module
AAIPT Aging Aircraft Enterprise Team ACMF airplane condition monitoring function ADMS airline data management system
(Naval Air Systems Command) ACMP alternating current motor pump ADN aircraft data network
AAIU air accident investigation unit ACMS aircraft condition monitoring system ADO airline dispatch office
07_AVS_120110_AcronymGuide_p08_35.indd 8 11/12/10 10:34:25 AM

ADO airport district office AFMS automatic flight management system AFTN aeronautical fixed telecommunications
ADP air driven pump AFN air traffic services facilities notification network
ADR accumulated Doppler range AFP Airspace Flow Program AFTRCC Aerospace and Flight Test Radio
ADR accumulated Delta range AFRL Air Force Research Lab Coordinating Council
ADR address AFS additional secondary factors AFU artificial feel unit
ADR Advanced Data Research AFS aeronautical fixed service (ICAO) AGACS automatic A/G communication system
ADR alternative dispute resolution AFS automatic flight system AGAE A/G applications engineering
ADRAS airplane data recovery and analysis system AFSK audio frequency shift keying AGATE Advanced General Aviation Transport
ADS air data system AFSS automated flight service stations Experiments (NASA)
ADS automatic dependent surveillance
0LUG0LAY
ADS-A ADS-addressed
ADS-A ADS-automation
ADS-B ADS-broadcast
ADS-C ADS-contract
ADS-R ADS-rebroadcast
ADSEL address selective
ADSP automatic dependent surveillance panel
ADSSG ADS Study Group (ICAO)
ADSU automatic dependent surveillance unit
ADT air data tester
AEA Aircraft Electronics Association
AEB Aerial Exploitation Battalion
AECU audio electronic control unit )JHI%FOJUJPO.VMUJNFEJB
AED automated engineering design *OUFSGBDF )%.*
$BCMFT
AEDT Aviation Environmental Design Tool
AEE Office of Environment & Energy (FAA)
AEEC formerly Airlines Electronic Engineering
Committee (ARINC)
0ROVEN0ERFORMERS
AEO all engines operative
$ATA"USAND#OMPOSITE#ABLES
$BSMJTMF*OUFSDPOOFDU5FDIOPMHJFT $BSMJTMF*5
BQQMJDBUJPOFOHJOFFSJOHHSPVQIBT
AEP ARINC engineering practices EFWFMPQFEBCSPBEBTTPSUNFOUPGTQFDJBMJ[FEDBCMFEFTJHOTBOEBTTFNCMJFTUP
AEP audio entertainment player *OKFDUJPO.PMEJOH TVQQPSUUIFXJEFWBSJFUZPGBQQMJDBUJPOTJOUIFBWJBUJPOJOEVTUSZ
AERA automated en route air traffic control 8FXPSLIBSEUPPQUJNJ[FPVSDBCMFEFTJHOTUPNFFUUIFDVTUPNFSThOFFET

XIJMFNBJOUBJOJOH'"" "3*/$ NJMJUBSZ BOEJOEVTUSZTQFDJmDBUJPOT8FTFMFDU
AES aircraft earth station (Inmarsat) POMZBQQMJDBUJPOBQQSPQSJBUFNBUFSJBMTGPSFBDIDBCMFXFCVJME BOEPVSEFTJHO
DPOTJEFSBUJPOTJODPSQPSBUFNBOVGBDUVSJOHFDJFODJFTGPSNBYJNJ[FENBUFSJBM
AESA active electronically scanned array
VTBHF
AESS aircraft environment surveillance system &BDI$BSMJTMF*5DBCMFBOEDBCMFBTTFNCMZJTGVMMZUFTUFEUPHVBSBOUFFFMFDUSJDBM
&BDI
AEW airborne early warning BOEQIZTJDBMJOUFHSJUZ DPNQMZXJUITZTUFNSFRVJSFNFOUT BOEBEIFSFUPBMM
JOEVTUSZNBOVGBDUVSJOHTUBOEBSET
AEW&C Airborne Early Warning and Control
0VSTUBOEBSEBOEDVTUPNEFTJHOTIPMEVQUPUIFNPTUSJHPSPVTFOWJSPONFOUBM
AF airway facilities &UIFSOFU IB[BSETPGJOnJHIUBOEPOUIFHSPVOEPQFSBUJPOTXJUIQSPmDJFOUBOESFMJBCMF
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AFM aircraft flight manual ecs@CarlisleIT.com
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AGC automatic gain control AL alarm limit ANDC airport and navigation data compiler
AGCOS A/G communication services ALC airline link control ANFR Agence Nationale des Frequences (France)
AGCS air-ground communication systems ALC asynchronous link control ANFS aircraft network and file server
AGCU auxiliary generator control unit ALC automatic level control ANICS Alaskan NAS Interfacility Communication
AGD ADS-B guidance display ALMDS airborne laser mine detection system ANLP ARINC network layer protocol
AGDL A/G data link ALPA Air Line Pilots Association ANP actual navigation performance
AGIS A/G intermediate system ALPS automatic line protection service ANP air navigation plan/performance
AGL above ground level ALS application layer structure ANPA advanced notice of proposed amendment
AGR A/G router ALSF-2 Approach Lighting System with Sequenced ANPE actual navigation performance effect
AGRM air/ground router-regional manager Flashing Light-Model 2 ANR active noise reduction
AGS A/G system ALT-HOLD altitude hold mode ANS air navigation system
AGSS ACARS ground system standard (AEEC) ALT airborne link terminal ANS ambient noise sensor
AGTS A/G test station ALT altitude/alternate ANSI American National Standards Institute
AGVS A/G voice sub-network AltBOC alternate binary offset carrier ANSIR advanced navigation system inertial reference
AGW ARTS gateway ALTM altimeter ANSP air navigation service provider
AHC attitude heading computer ALTN alternate ANSU avionics network server unit
AHMS aircraft health monitoring system ALTRV altitude reservation ANTC advanced networking test center
AHRS attitude heading reference system ALTS altitude select AO acronymic obfuscation
AI alternative interrogator ALU arithmetic and logic unit AO Area of Operation (U.S. Army)
AI application interface AM access module AOA ACARS over aviation VHF link control
AI area incursion AM amplitude modulation AOA angle of arrival
AIA Aerospace Industries Association AMASS airport movement area safety system AOA angle of attack
AIAA American Institute of Aeronautics AMC acceptable means of compliance (EASA) AOAS advanced oceanic automation system
and Astronautics AMC advanced mezzanine card AOC aeronautical operational control
AIC aeronautical information circular AMC Air Mobility Command AOC aircraft operational control
AIDC air traffic services interfacility data AMC auxiliary maintenance computer AOC Airline Operational Control Center
communications AMC Avionics Maintenance Conference AOC airline operations center
AIDS aircraft/airborne integrated data system AMCP aeronautical mobile communications panel AOC airport obstruction chart
AIED aeronautical industry engineering and AMD advisory map display AOC airport operational communications
development AME amplitude modulation equivalent AOCC airline operations control center
AIEM Airlines International Electronic Meeting (AMC) AMF Airborne, Maritime and Fixed Station AODB airport operational database
AIFSS automated international flight service stations AMF-M AMF-Maritime AODC age of data, clock (GPS)
AIL aileron AMF-SA AMF-Small Airborne AODE age of data, ephemeris (GPS)
AIM aeronautical information management AMF JTRS Airborne and Maritime/Fixed Station AOG aircraft on ground
AIM airmans information manual Joint Tactical Radio System AOHE air/oil heat exchanger
AIMS airplane information management AMI airline modifiable information AOM aircraft operating manual
system (Boeing 777) AML approved model list AOP aeronautical OSI profile
AIMS airport information management system AMLCD active matrix liquid crystal display AOP airline operational procedure
AINSC aeronautical industry service communication AMIS aircraft management information system AOP analog output
AIO analog input/output AMOSS airline maintenance and operation support AOPA Aircraft Owners and Pilots Association
AIP aeronautical information publication system AOR Atlantic Ocean region
AIP Airport Improvement Program AMP audio management panel AOR area of responsibility
AIP analog input AMP Avionics Modernization Program AOR-E Atlantic Ocean region-east
AIR Aircraft Certification Service (FAA) AMPL amplifier AOR-W Atlantic Ocean region-west
AIRAC aeronautical information regulation and control AMRAAM Advanced Medium-Range Air to Air Missile AP airport location (ACARS/AFEPS)
AIRCOM digital air/ground communications AMS acquisition management system APA Allied Pilots Association
service (SITA) AMS apron management service APA autopilot amplifier
AIRE Atlantic Interoperability Initiative to Reduce AMS ARINC maintenance service APANPIRG Asia/PAC Air Navigation Planning &
Emissions (FAA) AMS avionics management service Implementation Regional Group
AIRMET airmans meteorological information AmSAT American satellite APAS Active/Passive Aircraft Survivability
AIRO analog input/reference output AMSL above mean sea level APB acquisition program baseline
AIS aeronautical information service AMS(R)S aeronautical mobile satellite (route) service APB auxiliary power breaker
AIS Automated Identification System (U.S. Army) AMSS aeronautical mobile satellite service APC aeronautical passenger communication
AIS automatic information services (Eurocontrol) AMTOSS aircraft maintenance task oriented support APC aeronautical public correspondence
AISG Applications Interface Sub-Group (IATA) system APC aircraft power conditioner
AIT Advanced Individual Training (U.S. Army) AMTS aeronautical message transfer service APC autopilot computer
AIV accumulator isolation valve AMU ACARS/avionics management unit APCO Association of Public-Safety Communications
AJPS AFEPS journal processing system AMU audio management unit Officials - International
AK authentication key AMUX audio multiplexer APFA Association of Professional Flight Attendants
AKO Army Knowledge Online ANC Air Navigation Commission (ICAO) APFDS autopilot flight director system

17807

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December 2010 Avionics Magazine 11
17807

APEX application/executive software ASDE-X airport surface detection equipment, model X ATDL air transport data link
APEX Airline Passenger Experience Association ASDI Aircraft Situation Display to Industry ATE automatic test equipment
(formerly WAEA) ASDL aeronautical satellite data link ATE avionics test and evaluation
API application programming interface ASDR airport surface detection radar ATFM air traffic flow management
APIM ARINC Industry Activities Project Initiation/ ASE aircraft survivability equipment (U.S. Army) ATG advanced concept technology demonstration
Modification ASE altimetry system error ATHR autothrust system
APIRS attitude and positioning inertial reference ASECNA Agency for Security of Aerial Navigation in Africa ATI airborne tracker illuminator
system and Madagascar ATIDS airport surface target identification system/
APMS automated performance measurement system ASG ARINC signal gateway service
APL Applied Physics Laboratory ASI airspeed indicator ATIS airport traffic information system
APLC airport performance laptop computers ASI avionics system integration ATIS automatic terminal information service
APM approach path monitor ASIAS Aviation Safety Information Analysis and ATL autothrottle limit
APN ARINC packet network Sharing (FAA)
APP approach control ASIC application specific integrated circuit ATLAS abbreviated test language for avionics
APPR approach ASL above sea level systems
APR actual performance reserve ASM airspace management ATM air traffic management
APRL ATN profile requirement list ASM autothrottle servo motor ATM asynchronous transfer mode
APU auxiliary power unit ASME American Society of Mechanical Engineers ATMAC Air Traffic Management Committee (RTCA)
APUC auxiliary power unit controller ASOR Allocating Safety Objectives and Requirements ATMAS ATM automation system
APX application/executive software ASOS automated surface observation system ATMB Air Traffic Management Bureau (China)
AQF avionics qualification facility ASP ACARS sub-network protocol ATM DSS ATM decision support service
AQP avionics qualification procedure/program ASP acquisition strategy paper ATMS area navigation, test and management
AQP advanced qualification program ASP aeronautical fixed service systems services
AQS advanced quality system planning (AFS) ATN aeronautical telecommunication network
AR authorization required ASP Airspace Systems Program (NASA) ATNE ATN engineering
ARB arbitrary waveform generator ASP altitude set panel ATNP ATN panel
ARC aviation rulemaking committee (FAA) ASP arrival sequencing program ATO air traffic operations
ARD advanced requirement definition ASPIRE Asia and Pacific Initiative to Reduce Emissions ATO Air Traffic Organization (FAA)
ARDEP analysis of research & development in ASPP application specific programmable processor ATOL automatic take-off and landing
Eurocontrol programs ASR airport surveillance radar ATOP advanced technologies and oceanic
ARF airline risk factor ASRAAM advanced short range air-to-air missile procedures
ARFORGEN Army Force Generation ASRS aviation safety reporting system ATP acceptance test procedure/plan
ARM area regional manager ASSA Airport Surface Situational Awareness ATPAC Air Traffic Procedures Advisory
ARMC area regional maintenance center ASSTC aerospace simulation and systems test center Committee (FAA)
ARMS Airspace resource management system ASSV alternate source selection valve ATR acceptance test report
ARNS aeronautical radio navigation services ASTA airport surface traffic automation ATR air transport racking
ARP aerospace recommended practice ASTAMIDS Airborne Standoff Minefield Detection System ATR air transport radio: ARINC form-factor/
ARP airport reference point ASTERIX All-Purpose Structured Eurocontrol Surveillance standard case dimensions
ARP antenna reference point Information Exchange ATS air traffic services
ARTAS ATM surveillance tracker and server ASTF airspace system task force ATS air turbine starter
ARTCC air route traffic control center ASTM American Society for Testing and Materials ATS autothrottle system
ARTP NextGen Aviation Research and Technology Park ASTOR Airborne Stand-Off Radar (U.K.) ATS air traffic service
ARTS automated radar terminal system ASVI avionics serial video interface ATSAP Air Traffic Safety Action Program (FAA)
ASA aircraft surveillance applications ASV alternate servo valve ATSAW Airborne Traffic Situational Awareness
ASAS aircraft separation assurance system (AEEC) AT air transport ATSC air traffic services communication
ASAS aircraft surveillance application system AT at an altitude AT/SC autothrottle/speed control
ASAS aviation safety analysis system ATA actual time of arrival ATSGF air traffic services geographic filter
ASC aircraft system controller ATA Air Transport Association ATSMP air traffic services message processor
ASC aural synthesizer card ATAS aviation traffic and application software ATSO air traffic services organization
ASCII American standard code for information ATC advanced technology center ATSP air traffic services provider
interchange ATC air traffic control ATSRAC Aging Transport Systems Rulemaking
ASCB avionics standard communication bus ATCA Air Traffic Control Association Advisory Committee (U.S.)
ASCPC air supply and cabin pressure controllers ATCBI ATC beacon interrogator ATSU air traffic services unit
ASCS air supply control system ATCC area and terminal control center ATWR apron tower (and operator)
ASCU anti-skid control unit ATCRBS ATC radar beacon system AUSRIRE All Union Scientific Research Institute of
ASD aircraft situation display ATCSS ATC signaling system Radio Equipment: CIS (former Soviet) agency
ASDAR aircraft-to-satellite data relay ATCT air traffic control tower AUX auxiliary
ASDB aircraft specific database ATIS airport traffic information system AVC aviation VHF car rental availability
ASDE airport surface detection equipment ATIS automated terminal information service (messages)
ASDE-3 airport surface detection equipment, model 3 ATIS-B automatic terminal information service-broadcast AVH aviation VHF hotel availability (messages)

AVIM Aviation Intermediate Level Maintenance BISMS BIS management system C/UT code/unit test
(U.S. Army) BIST built-in self-test C&C command and control
AVL automated vehicle locations BiSync binary synchronous control C&W control and warning
AVLAN avionics local area network BIT built-in test CA conflict alert
AVLC aviation VHF link control Bit binary digit CAA Cargo Airline Association
AVM airborne vibration monitor BITE built-in test equipment CAA Civil Aviation Administration
AVS aviation VHF seat availability BIU bus interface unit CAA Civil Aviation Authority
AVOD audio and video channels on demand BLK block/black CAAC Civil Aviation Administration of China
AVOL aerodrome visibility operational level BLI budget line item CAAFI Commercial Aviation Alternative Fuels Initiative
AVPAC aviation VHF packet communications BLOS beyond line of sight (FAA)
AVS aviation VHF seat availability (messages) BMV brake metering valve CAAS common avionics architecture system
AVUM Aviation Unit-Level Maintenance (U.S. Army) BNR binary CAASD Center for Advanced Aviation System
AWACS airborne warning and control system BNR binary numerical representation Development (MITRE Corp.)
AWAS automated weather advisory station BNS boundary notification system (squitters) CAB Civil Aeronautics Board
AWG American wire gauge BOC binary offset carrier CAB combat aviation brigade (U.S. Army)
AWIN advanced weather information system BOC bottom of climb CAC caution advisory computer
AWIN aviation weather information BOP/COP bit-oriented protocol/character-oriented CACP cabin area control panel
AWIPS advanced weather interactive processing protocol CAD computer-aided design
system BP bite processor CADC central air data computer
AWLU aircraft wireless LAN unit BPCU bus power control unit CADS centralized automatic dependent surveillance
AWM auto warning mixer BPL broadband over powerlines CAE component application engineer
AWO all weather operations BPS bits per second CAGE commercial avionics GPS engine
AWOP AWO panel BPSK binary phase shift keying CAH cabin attendant handsets
AWOS automated/airport weather observing system BR basic regulation CAI caution annunciator indicator
AWR aviation weather research BR bridge CALSEL variation of SELCAL system
AZ azimuth: angular measurement in horizontal BRG bearing CAM computer-aided manufacturing
plane BRI basic rate interface CAN controller area network
BRNAV basic area navigation CANbus control area network
B BRT brightness CANSO Civil Air Navigation Services Organization
B-NAV basic area navigation BSG baseband signal generator CAOC Combined Air Operations Center
BAMS Broad Area Maritime Surveillance BSN backbone sub-network CAP Civil Air Patrol (U.S.)
BBML broadband multi-link BSC binary synchronous communication CAP Collaborative Arrival Planning
BCD binary code decimal BSCU brake system control unit CAPA Coalition of Airline Pilots Associations
BCT Brigade Combat Team (U.S. Army) BSP board support package CAPS commercial airliner protection system
BCTM Brigade Combat Team Modernization (U.S. Army) BSU beam steering unit CARE cooperative actions on R&D in Eurocontrol
BDA battle damage assessment BSU bypass switch unit CARTS Common Automated Radar Terminal System
BDA bomb damage assessment BTB bus tie breaker CAS CDTI assisted separation
BDMIS business data management and invoicing BTMU brake temperature monitor unit CAS close air support
system BU backup CAS collision avoidance system
BDRVT Bi-Diretional Remote Video Terminal BUEC BU emergency communications CAS commercially available software
BDS comm-B designation subfield BUFR binary universal form for communication CAS computed airspeed
BEA Bureau dEnquetes Accidents (French representation CASA Civil Aviation Safety Authority
equivalent of NTSB) BW bandwidth CASA controller automated spacing aid
BEBS best-equipped/best-served BWAN BU wide area network CASCADE Co-operative ATS (Air Traffic Services) through
BEP back-end processor Byte a grouping of eight bits Surveillance and Communication Applications
BEPMS BEP management system Deployed in ECAC (European Civil Aviation
BER bit error rate C Conference)
BFE buyer furnished equipment C2 command and control CASE computer-aided software engineering
BFO beat frequency oscillator C3 command, control and communication CASR Civil Aviation Safety Regulations
BFS broadband fiber source C41 command, control, communications, CASS Consolidated Automated Support System
BFT Blue Force Tracking computers & intelligence CAT categories (I, II, IIIa/b/c) approach
BGARS basic general aviation research simulator C4ISR command, control, communications, CAT clear air turbulence
BGI bus grant inhibit computers, intelligence, surveillance and CAT computer aided testing
BGP border gateway protocol reconnaissance CATEX categorical exclusion
BI burn-in C-MANPADS Counter-Man Portable Air Defense System CATM Collaborative Air Traffic Management
Bi-SC Bi-Strategic Command C/A code course acquisition code (GPS) CATMT Collaborative Air Traffic Management
BiG bilingual ground station (ACARS and VDL C/NO carrier-to-noise density ratio Technologies
Mode 2) C/R command/response CAVS CDTI assisted visual separation
BIH Bureau lInternational de lHeure C/SOIT communications/surveillance operational CBA cost/benefit analysis
BIS boundary intermediate system implementation team CBM condition based maintenance

CBP Customs and Border Patrol (U.S.) CG center of gravity operations

CBRNE chemical, biological, radiological, nuclear high CHAIN Compartmented High Assurance Information CON continuous
yield explosives (U.S. Army) Network CONEMP concept of employment (U.S. Army)
CBT computer-based training CHI computer/human interface CONOPS concept of operations
CC connection confirm CHIS center hydraulic isolation system CONUS continental United States
CCA circuit card assembly CI configuration item CONUSE concept of use
CCB configuration control board CI cabin interphone COP character-oriented protocol
CCB converter circuit breaker CID category interaction diagram COP common operating picture (U.S. Army)
CCD category class diagram CIDIN common ICAO data interchange network COTP connection-oriented transport protocol
CCD charged coupled device CIDS cabin interphone distribution system COTR contracting officers technical representative
CCD coherent change detection CIE Commission Internationale de IEclairage COTS commercial-off-the-shelf
CCD cursor control device CIGS copper-indium-gallium-diselenide CP central processor
CCIR International Radio Consultative Committee CIP capital investment plan CP conflict probe
CCITT Consultative Committee International Telephone CIP convergence & implementation program CP control panel
and Telegraph (Eurocontrol) CPA closest point of approach
CCP consolidated control panel CIS common information services CPA collision prediction and alerting
CCS cabin communication system CIS corporate information system CPC cabin pressure controller
CCS common core system CLEEN Continuous Lower Energy, Emissions and Noise CPC controller-pilot communications
CCSD common constraint situation display Program (FAA) CPC cursor position control
CCTV closed-circuit television CLNP connectionless network protocol CPCI computer program configuration item
CD carrier detect CLNS connectionless network service CPCS cabin pressure control system
CD chrominance difference CLTP connectionless mode transport protocol CPDLC controller-pilot data link communications
CDA continuous descent approach CM context/configuration management CPE circular position error
CDA coordinating design authority CMC central maintenance computer CPI continuous process improvement
CDAM centralized data acquisition module CMCF CMC function CPM core processing module
CDAM common data acquisition module CMCS CMC system CPM critical path method
CDG configuration database generator CMD command CPR compact position reporting
CDI course deviation indicator CMF common message format CPS cabin pressure sensor
CDM collaborative decision-making CMGT contract management CPS central processing system
CDMS CDM system CMM capability maturity model CPU central processing unit
CDMS control and data management system CMM common mode monitor CR change of request
CDP continuous data program CMM component maintenance manual CR connection request
CDQM collaborative departure queue management CMN control motion noise CR contrast ratio
CDR critical design review CMOS complementary metal oxide semiconductor CRA conflict resolution advisory
CDS central dispatch system CMP configuration management plan CRAF Civil Reserve Air Fleet
CDS cockpit display systems CMS cabin management system CRC cyclic redundancy checking/code
CDS common display system CMU communication management unit CRD Concepts and Requirements Directorate
CDSS cockpit door surveillance system CND can not duplicate (U.S. Army)
CDT controlled departure time CNDB customized navigation database CRD current routing domain
CDTI cockpit display of traffic information CNES Centre National dEtudes Spatiales (France) CRADA cooperative research and development
CDU control display unit CNG 2020+ carbon neutral growth from 2020 and agreement
CDV compressed digital video beyond (AIA) CRDA converging runway display aid
CEC cooperative engagement capability CNI communications, navigation and identification CRM crew/cockpit resource management
CEI cabin equipment interfaces CNP communications/navigation/pulse CRPA controlled reception pattern antenna
CENTCOM U.S. Central Command CNR customer notification reports CRS Congressional Research Service (U.S.)
CENTRIXS Combined Enterprise Regional Exchange CNS communication, navigation surveillance CRISD computer resources integrated support
System CNS/ATM communications, navigation, surveillance/air document
CEP circular error probable traffic management CRISTAL CoopeRative Validation of Surveillance
CEQ Council on Environmental Quality CNSI communications/navigation/surveillance/ Techniques and Applications (Eurocontrol)
CF certification identification CRM collision risk model
CF change field CNUS cabin network server unit CRM crew resource management
CFDIU centralized fault display interface unit COA certificate of authorization CRMA code reuse multiple access
CFDS central fault display system COCOM combatant commander (U.S. Army) CRR cutover readiness review
CFDU configurable file data unit CODEC coder/decoder CRS course
CFIT controlled flight into terrain CofA certificate of airworthiness CRT cathode ray tube
CFM cubic feet per minute COM cockpit operating manual CRTC combat readiness training center
CFM configuration management COMINT communications intelligence CRZ cruise
CFMU central flow management unit COMINT/DF COMINT direction finding CS commercial service
CFR Code of Federal Regulations COMM communications CS common service
CFS cabin file server COM/MET/OPS communications/meteorological/ CS control station

CSC cargo system controller CTOL conventional takeoff and landing DA digital-to-analog
CSC common signaling channel CTR center DABS discrete addressable beacon system
CSC computer software component CTR control zone DAC digital-to-analog converters
CSCI computer software configuration item CTRD configuration test requirements document DADC digital air data computer
CSD Coalition Shared Databases (U.S. Army) CTRL control DADS digital air data system
CSF command/status frame CTS clear to send DAE defense acquisition executive (U.S. Army)
CSMA carrier sense multiple access CTS conformance test suite DA(H) design altitude (height)
CSMA/CD carrier sense multiple access with collision CTS/TCTS combat training system/tactical combat DAISS digital airborne intercommunication switching
detection training system system
CSCP cabin system control panel CTU cabin telecommunications unit DAP digital service access product
CSDB commercial standard data bus CU channel utilization DAP direct action penetration
CSDS cargo smoke detector system CU combiner unit (HUD) DAP downlink aircraft parameter
CSEU control systems electronics unit CU control unit DAP download of aircraft parameter
CSMM crash survivable memory modules CUG closed user group DAR data access recorder
CSMU cabin system management unit CUTE common use terminal equipment DARC direct access radar channel
CSP Common Sensor Payload CV/DFDR cockpit voice and digital flight data recorder DARP dynamic aircraft route planning
CSPA closely spaced parallel approach CVR cockpit voice recorder DARPA Defense Advanced Research Projects
CSPO closely spaced parallel operations CVRCP cockpit voice recorder control panel Agency (U.S.)
CSPR closely spaced parallel runways CW clockwise DAS designated alteration station
CSS cabin systems subcommittee (ARINC) CW continuous wave DAS digital audio subcommittee
CSTAC Commercial Space Transportation Advisory CWI continuous wave interference DAS distributed aperture system
Committee CWID Coalition Warrior Interoperability Demonstration DASS defensive aids sub-system
CSU channel service unit CWP central weather processor DB database
CSU computer software unit CWP controller/ed working position dB decibel
CSU configuration strapping unit CWS control wheel steering dBA dB adjusted
CTA control area CY calendar year DBI downlink block identifier
CTA controlled time of arrival dBI dB referenced to an isotropic antenna
CTAF common traffic advisory frequency D dBI decibels above isotopic circular
CTAI cowl thermal anti-icing D8PSK differential 8-phase-shift keying dBM dB below 1 milliwatt
CTAS center TRACON automation system D-ATIS digital automatic terminal information service DBS direct broadcast satellite
CTC cabin temperature controller D-OTIS data link operational terminal service DBU database unit
CTC combat training centers (U.S. Army) D-TAXI data link taxi clearance delivery DBU dial backup
CTD cabin training device D-TOC digital transfer of communications dBW dB-watts or referenced to 1 watt
CTL control DA descent advisor DC data communications
CTMO EMS
centralized air traffic flow management
AVIATION_AM_1_3pg_Dec_10.pdf 10/29/2010 DAPM
3:58:58 design authority DC direct current
organization DA design altitude DC disconnect confirm
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DCA Department of Civil Aviation (Thailand) DIR/INTC direct intercept DT&E development test and evaluation
DCAS digital control audio system DISA Defense Information Systems Agency (U.S.) DTD data terminal display
DCD double channel duplex DISC disconnect DTD document type definition
DCE data communications equipment DISCH discharge DTE data terminal equipment
DCGF data conversion gateway function DIST distance DTED digital terrain evaluation data
DCL departure clearance (European) DITS data information transfer system DTG distance-to-go
DCM digital coherent mute DL data link DTM demonstration test milestone
DCMF data communication management function DLAP data link application processor DTMF dual tone multifrequency (telephone)
DCMS data communication management system DLC data link control DTP distributed targeting processor
DCN document/drawing/design change notice DLCI data link control identifier DTPDU data protocol data unit
DCP data communication process DLE data link entity DTRS data transceiver router server
DCP display control panel DLK data link DTS digital theater systems
DCS double channel simplex DLL data link layer DTU data transfer unit
DCU data concentration unit DLM data link management unit DU display unit
DCV directional control valve DLME data link and message engineering DUAT direct user access terminal
DD data delivery DL/MSU data loader/mass storage unit DUATS direct user access terminal system
DD data distribution DLNA diplexer/low-noise amplifier DUST dual-use science and technology
DDA digital differential analyzer DLORT data link operational requirements team DVF demonstration and validation facility
DDD dual disk drive DLP data link processor DVM digital voltmeter
DDL digital data link DLS data link service/system DVMC digital video map computer
DDM difference in depth of modulation DLU download unit DVOR Doppler VHF omnidirectional range
DDP declarations of design and performance DM disconnected mode DVRS digital voice recorder system
DDR draft document review DMA direct memory access DWAN direct wide area network
DDR double data rate DMD digital memory device
DDRMI digital distance radio magnetic indicator DME distance measuring equipment E
DDS direct digital synthesizer DME/N DME normal E-PIREPS electronic pilot reports
DDT downlink data transfer DME/P DME precision E/D end-of-descent
DDU data distribution unit DMM data memory module E/O engine-out
DER designated engineering representative DMS data link management system E&E electronics and equipment
DERA Defense Research and Evaluation Agency (U.K.) DMS debris monitoring sensor EA electronic attack
DEU display electronics unit DMU data management unit EA enterprise architecture
DF direction finding DoD Department of Defense (U.S.) EA environmental assessment
DFA direction finding antenna DoT Department of Transportation (U.S.) EAA Experimental Aircraft Association
DFCS digital flight control system DOTS dynamic ocean tracking system EACARS enhanced ACARS
DFDAF digital flight data acquisition function DPI dots per inch EAD engine alert display
DFDAMU digital flight data acquisition management unit DPR dual port RAM EAD European AIS database (Eurocontrol)
DFDAU digital flight data acquisition unit DPSK differential phase shift keying EADI electronic attitude director indicator
DFDR digital flight data recorder DR dead reckoning EADS European Aeronautic Defence and Space Co.
DFDU digital flight data unit DR deduced reckoning EAFR enhanced airborne flight recorder
DFGC digital flight guidance computer DRAM dynamic random access memory EAI engine anti-ice
DFGS digital flight guidance system DRER designated radio engineering EAL evaluation assurance level
DFIDU dual function interactive display unit representative (FAA) EAL-7 evaluation assurance level-7
DFIU digital flight instrument unit DRN document release notice EANPG European Air Navigation Planning Group
DFS Deutsche Flugsicherung GmbH (Germany) DRVSM domestic reduced vertical separation minimum EAP engine alert processor
DFS digital frequency select DSAD digital service access device EAROM electrically alterable read-only memory
DfT Department for Transport (U.K.) DSARC defense system acquisition review cycle EARTS en route automated radar tracking system
DFU digital function unit DSB double side band EAS equivalent airspeed
DG directional gyro DSB-AM DSB-amplitude modulation EASA European Aviation Safety Agency
DGNSS differential global navigation satellite system DSDU data signal display unit EASIE enhanced ATM and Mode S implementation in
DGPS differential global positioning system DSF display system function Europe
DH decision height DSP data link service provider EATCHIP European air traffic control harmonization &
DHCP dynamic host configuration protocol DSP departure sequencing program integration program
DHS Department of Homeland Security DSP digital signal processor EATMS European ATM System (Eurocontrol)
DI data interrupt DSP display select panel EATRADA European ATM Research and Development
DIFAX digital facsimile DSP domain specific part Association
DIGNU deeply integrated guidance and navigation unit DSPDRV display driver EBR extended bit rate
DIP data interrupt program DSR display system replacement EC European Commission
DIP dual in-line package DSS decision support services ECAC European Civil Aviation Conference
DIR director DST decision support tool ECAM electronic caution alert module
DIRCM direct infrared countermeasures DSU data signaling unit ECC error correcting code

ECEF earth-centered, earth-fixed EHV electro-hydraulic valve EISA extended industry standard architecture
ECJ European Court of Justice EIA Electrical Institute of America EIU electronic interface unit
ECL emitter coupler logic EIA Electronic Industries Association ELB electronic logbook
eCM equipment conditioning monitoring EICAS engine indication and crew alert system ELEC electrical
ECMP electronic component management system EICASC EICAS controls ELM extended length message
ECN engineering change notice EIPI extended initial protocol identifier ELMS electrical load management system
ECO engineering change order EIRP earth incident radiated power eLORAN enhanced long range aid to navigation
ECP EICAS control panel EIRP effective isotropic radiation power ELOS equivalent level of safety (U.S. Army)
ECP engineering change proposal EIS electronic instrument system ELS electronic library system
ECS engineering compiler system EIS engine indication system ELT emergency locator transmitter
ECS environmental control system EIS environmental impact statement EM electromagnetic
ECS event criterion subfield
ECSL left environmental control system card
ECSMC environmental control system
miscellaneous card
ECSR right environmental control system card I]ZaZVY^c\bVcj[VXijgZgd[6k^dc^XhIZhi
ECU electronic control unit H^bjaVi^dcEgdYjXih[dgVaaVeea^XVi^dch
H_]^jedJWh][j
ED EICAS display
EDA electronic design automation 6>B"JH6
EDAC error detection and correction
EDARC enhanced direct access radar channel
EDC
EDDS
error detection and correction
electronic document distribution service
6k^dc^XhIZhi^c\^hVe^ZXZ
EDI electronic data interchange
EDI
EDIF
engine data interface
engine data interface function
d[XV`Zlî]6>BegdYjXih
EDIS emergency digital information service
EDIU engine data interface unit
EDMS electronic data management system
EDP electronic data processing
EDP engineering development pallet PC/104-Plus USB PMC/XMC ExpressCard PCI/PCIe cPCI/PXI VME VXI
EDP engine driven pump
EDS embedded diagnostic system
EDS explosive detection system
EDU electronic display unit
EE electrical engineer
EE electronics equipment
EEAS enhanced en-route automation system
EEC electronic engine control
EEC Eurocontrol Experimental Center
S
NEW IUCE
EEPROM electrical erasable programmable ROM
EEU electrical load management system
EFB
electronics unit
electronic flight bag
OFF unche
AIM la in Philade
US
s new hia
lp
prise
enter
EFC expected further clearance
EFD electronic flight display
EFDP European flight data processing (Eurocontrol) AIM Office Contacts:
EFIC electronic flight instrument controller 6>Bh[^ZaYegdkZc!gdWjhiVcYbVijgZ =6G9L6G:
AIM USA - Trevose, PA
EFIP electronic flight instrument processor Tel: 267-982-2600 egdYjXihjîZ^cXajYZhbdYjaZh!cZildg`
EFIS electronic flight instrument system email: salesusa@aim-online.com VcVanoZghhnhiZbh# HD;IL6G:
EFIS CP EFIS control panel
AIM UK - High Wycombe 6>B"i]ZbdhihjXXZhh[jahjeea^Zgd[ig^ZY HNHI:BH
EFVS enhanced flight vision system
Tel: +44 1494 446844 VcYigjhiZYiZhiiddah[dgVaandjg6k^dc^Xh
EGI embedded GPS/INS email: salesuk@aim-online.com IZhiH^bjaVi^dccZZYh#;dg[jgi]ZgYZiVâh! HJEEDGI
EGIHO expedited ground-initiated handoff
EGNOS European Geostationary Overlay System AIM GmbH - Freiburg eaZVhZ\didlll#V^b"dca^cZ#XdbdgXVaa
Tel: +49 761 45 22 90 djghVaZhZc\^cZZghidk^hîlî]egdYjXi
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EGP exterior gateway protocol
email: sales@aim-online.com YZbdchigVi^dchVcYigV^c^c\XdjghZh#
EGPWS enhanced ground proximity warning system
EGT exhaust gas temperature AIM GmbH - Mnchen 6>B"I]ZaZVY^c\bVcj[VXijgZgd[6k^dc^XhIZhiH^bjaVi^dc
EHF extremely high frequency Tel: +49 89 70 92 92 92
EgdYjXih[dgVaaVeea^XVi^dch
EHSI electronic horizontal situation indicator email: salesgermany@aim-online.com
lll#V^b"dca^cZ#Xdb

7159 Avionics Advert.indd 1 22/10/10 10:28:17

EM element manager ESIS electronic standby instrument system FAC flight augmentation computer
EMATS endurance management air traffic system ESIS engine and system indication system FACT future airport capability task
EMC electromagnetic compatibility ESM electronic support measures FADEC full authority digital engine/electronic control
EMC entertainment multiplexer controller ESOIC enhanced small-outline IC FAF final approach fix
EMD engineering, manufacturing and development ESR equivalent-series resistance FAI first article inspection
EMER emergency ESS electronic switching system FAMIS full aircraft management/inertial system
EMI electromagnetic interference ESS environmental stress screening FANS Future Air Navigation System (ICAO)
EMP electro magnetic pulse ESSD electrostatic sensitive devices FAR federal acquisition regulation
EMS emergency medical services ESU environmental sensor unit FAR federal aviation regulation
EMS engine management system ETA estimated time of arrival FAROA Final Approach Runway Occupancy Awareness
EMS environmental management system ETAS enhanced TRACON/tower automation system FAS final approach segment
EMU expansion module unit ETB end of block (ASCII/IA5 character) FAST final approach spacing tool
ENG engine ETB engineering test bed FAT factory acceptance test
ENOC engineering network operations center ETC estimated time of completion FBCB2 Force XXI Battle Command Brigade and Below
EO/IR electro-optic/infrared ETD estimated time of departure FBL fly by light
EOC emergency operations center (U.S. Army) ETE estimated time enroute FBN fly by night
EOD end of day ETI elapsed time indicator FBO fixed-base operator
EO DAS electro-optical distributed aperture system ETM elapsed time measurement FBW fly by wire
EOLA European pre-operational data link applications ETM electronic training manuals FC functional capability
EOM end of message ETMS engine-trend monitoring services FC foot candles
EOT end of text ETMS enhanced traffic management system FC-AV Fibre Channel-Audio Video
EOTS electro-optical targeting system ETNO European Telecommunications Network FCA functional configuration audit
EP engineering project Operators FCC Federal Communications Commission (U.S.)
EP external power ETOPS extended operations FCC flight control computer
EPC engineering project contractor ETOPS extended twin-engine operations FCDC flight critical direct current
EPCS engine propulsion control system ETP equal time point (halfway there, by time) FCL flight crew licensing (EASA)
EPLD electronically programmable logic device ETRC expected taxi ramp clearances FCM future concepts for maintenance
EPLRS enhanced position location and reporting system ETS Emission Trading Scheme FCMA FANS Central Monitoring Agency
EPR engine pressure ratio ETVS enhanced terminal voice switch FCP flight control panel
EPR environmental protection requirements (Europe) ETX end of transmission FCP flight control processor
EPROM erasable programmable ROM EU electronic unit FCS flight control system
EPS electrical power system EU European Union FCS frame check sequence
EPU estimated position uncertainty EUAFS enhanced upper air forecast system FCS Future Combat Systems
EPV end-point voltage EUPS external uninterruptible power supply FCS future concepts for simulators
EQTG electronic qualification test guide EURATN European ATN FD fault detection
ERA Environmentally Responsible Aviation EURET European research on transport systems FD flight dynamics/director
program (AIA) EUROCAE European Organization for Civil Aviation FD final data
ERAM En Route Automation Modernization Equipment (European equivalent of RTCA) FDAF flight data acquisition function
ERAST environment research aircraft and sensor EUROCONTROL European Organization for the Safety FDAU flight data acquisitions unit
technology of Air Navigation FDB flight plan data bank
ERB Engineering Review Board EV earned value FDDI fiber distribution data interface
ERD end routing domain EVM error vector magnitude FDE fault detection and exclusion
ERMP extended range multi purpose EVS enhanced vision system FDEP flight data entry panel
EROPS extended range operations EW electronic warfare FDH flight deck handset
ERP effective radiation power EWIS electrical wiring interconnection system FDI fault detection and isolation
ERP eye reference point EZAP enhanced zonal analysis procedures FDIMU flight data interface management unit
ERPDU error protocol data unit FDIO flight data input/output
ERP PDU echo replay protocol data unit F FDM flight data monitoring
ERQ PDU echo request protocol data unit F Fahrenheit FDM frequency division multiplex
ERU engine replay unit F/O first officer FDMA frequency division multiple access
ES end system F&E facilities and equipment FDMS flight deck merging and spacing
ES extended squitter FA final approach FDPS flight data processing system
ESA European Space Agency FAA Federal Aviation Administration (U.S.) FDR flight data recorder
ESAI electronic standby attitude indicator FAA/EURO FAA/Eurocontrol R&D committee FDRS flight data recorder system
ESAS electronic situation awareness system FAATC FAA Technical Center FDP flight data processor
ESAS enhanced situational awareness system FAB functional airspace blocks FEATS Future European Air Traffic System
ESD electrostatic discharge FAB-T family of advanced beyond-line-of-sight FEC forward error correction
ESDS electrostatic discharge and soldering terminals FEP front-end processor
ESH end system hello FAC Federal Advisory Committee FERNS Far East Radio Navigation Service
ESID engine and system indication display FAC final approach course FF fuel flow

FFS full flight simulator FPA flight path angle FRA flap retraction altitude
FFT full flight trainer FPA focal plane array FRAD frame relay access device
FGC flight guidance computer FPAC flight path acceleration FRCS flight recorder configuration standard
FGS flight guidance system FPC flight profile comparator FRED flight recorder electronic documentation
FHA functional hazard assessment FPGA field programmable gate array FRM fault reporting manual
FIAO flight inspection area office FPM feet per minute FRM flammability reduction means
FIB forwarding information base FPV flight path vector FRM frame reject mode
FIFO first in, first out FQIS fuel quality indicating system FRMR frame reject
FIM fault isolation manual FQPU fuel quality processor unit FRP Federal Radionavigation Plan (U.S.)
FIR flight information region FQR formal qualification review FRPA fixed reception pattern antenna
FIS flight information services FR frame relay FRQ frequency
FIS-B FIS-broadcast
FIX position in space usually on aircrafts flight plan
FL flight level
FL foot lampert Now Available
FLCH flight level change
TechSAT
FLEX flexibility in the terminal environment
FLIR forward-looking infrared
FLTCK flight check
FltWinds flight and weather information and decision Genuine AFDX Switches
FLW
support
forward-looking windshear radar
for Lab and Flight Test
FM frequency modulation
FMA flight mode annunciator
FMAC Frequency Management Advisory Council
FMC flight management control/computer
FMC field programmable gate array mezzanine card
FMC future concepts for maintenance
FMCDU flight management control and display unit
FMCF flight management computer function
FMCS flight management computer system
FMCW frequency-modulated continuous wave
FMEA failure mode and effects analysis
FMF flight management function
FMGC flight management guidance computer
FMGEC flight management guidance envelope com-
puter
FMP flight mode panel
FMS flight management system
Fully ARINC664 Part 7 compliant
FMS full mission simulator
FMS-ATM Flight Management System-Air Traffic 16 or 24 port versions
Management 4096 VLs with high/low priority per port
FMSG Frequency Management Study Group (ICAO)
Full SNMP support, ARINC615A loadable
FMST flight management system trainer
FMU fuel metering unit Configurable traffic monitoring
FMV full motion video Easy to use full featured configuration tool
FNPRM further notice of proposed rulemaking
Flight Version:
FOC flight operations center
FOC full operational capability ARINC600 2MCU enclosure
FOC fuel/oil cooler DO160F tested (temperature, vibration, shock, EMC)
FOD foreign object debris
Rack Version:
FODA flight operations data assurance
FOG fiber optic gyro 19, 1 HU Enclosure
FONSI finding no significant (environmental) impact
FOQA flight operational quality assurance
FOS fiber optics subcommittee (AEEC) Test & Integration Systems Products Software Solutions Service & Support
FOSA flight operator surface application TechSAT'MB(s4ECHNISCHE3YSTEMEFR!VIONIKUND4EST
FOV field of view 'RUBER3TRASSECs$ 0OINGs'ERMANY
FOWG Fiber Optics Working Group (Naval Air 4EL s&AX sTS INFO TECHSATCOM
Systems Command)
www.techsat.com
TechSAT_Avionics 2010.indd 1 www.avtoday.com/av December 2010 Avionics Magazine 19

13.04.2010 15:20:06

FSAS flight service automation system GEO geosynchronous/geostationary earth orbit GP&C global positioning and communications
FSDO Flight Standards District Office (FAA) GEP ground entry point GPIB general purpose instrument bus
FSE FANS systems engineering GES ground earth station GPIRS global positioning/inertial reference system
FSE field service engineer GFE government furnished equipment GPP general purpose processor
FSEMC Flight Simulator Engineering and Maintenance GFI general format identifier GPPU general-purpose processing unit
Conference GFLOPS gigaflops GPRS general packet radio services
FSEU flap slat electronics unit GFSK Gaussian frequency shift keying GPS Global Positioning System
FSF Flight Safety Foundation GG graphics generator GPSSU GPS sensor unit
FSM flight schedule monitoring GGR G/G router GPU ground power unit
FSR field service representative GGS GPS ground station GPWC ground proximity warning computer
FSS flight service station GGTFM ground-ground traffic flow management GPWS ground proximity warning system
FSWE FANS software engineering GH ground handling GR ground router
FT functional test GHG greenhouse gas GRAS ground-based regional augmentation system
FT/ADIRS fault tolerant/air data inertial reference system GHz gigahertz GRIP gridded binary (National Weather Service
FTE flight technical error GI group identifier model output)
FTK freight tonne kilometers GIB global navigation satellite system integrity GRP geographic reference point
FTP file transfer protocol broadcast GS ground speed/station
FTPP fault tolerant power panel GIC global navigation satellite system integrity GSC ground station controller (ACARS)
FTS Federal Telecommunications System channel GSE ground support equipment
FUE first unit equipped (U.S. Army) GIC GPS integrity channel GSIF ground station information frame
FUSE family of unmanned systems experiments GIG Global Information Grid GSM global systems mobile
(U.S. Army) GIG-BE GIG-Band Expansion GSMS ground station management system
FVHF future VHF system study (Eurocontrol) GICB ground-initiated comm-B GSP glare shield panel
FW failure warning GIHO ground initiated handoff GTC ground terminal computer
FWC flight warning computer GINS GPS-inertial navigation systems GUI graphical user interface
FWD forward GIOVE-A Galileo In-Orbit Validation Experiment-A GVA geometric vertical accuracy
FWS flight warning system GIP government-industry partnership GVE graphics vector engine
GIS geodetic information system GW gateway
G GIS geographic information system GWDS graphic weather display system
G/A ground/air or ground-to-air GIS graphical information system GWS graphical weather services
G/G ground/ground GIVE grid inospheric vertical error
G/S glide slope GJU Galileo joint undertaking H
GA general aviation GL ground location (ACARS/AFEPS) HAA high-altitude airship
GA go-around GL group length HAATA Houston Area Airspace Transition System
GAAS gallium arsenide GLC geographic locator codes HAD hardware architecture document
GACS genetic ATN communications service GLNS GPS landing and navigation system HADDS Host Air Traffic Management Data Distribution
GAGAN geostationary augmentation network GLONASS Global Navigation Satellite System (Russia) System
GAIN galley inserts GLS GNSS landing system HADS high-altitude platform station
GAIT ground-based augmentation and integrity GLS GPS landing system HAE height above ellipsoid
technique GLU GPS landing unit HAG height above geoid
GAMA General Aviation Manufacturers Association GM guidance material HAI Helicopter Association International
GAN global area network GMC ground movement control HALE high-altitude, long-endurance
GAO Government Accountability Office (U.S.) GMDS ground mobile data service HARS high altitude route system
GATM global air traffic management GMR giant magnetoresistive HART heterogeneous airborne reconnaissance
GAViS general aviation vision system GMT Greenwich mean time teams (U.S. Army)
GBAS ground-based augmentation system GMTI ground moving target indicator HAT height above touchdown zone
GBSAA ground-based sense and avoid GMU GPS monitoring unit HCI human-computer interface
GBST ground-based software tool GNA global network architecture HCP heads-up control panel
GBT ground-based transceiver GNE gross navigational error HCS host computer system
Gbyte gigabyte (billion bytes) GNR global navigation receiver HD high density airports
GCA ground-controlled approach GNSS global navigation satellite system HD high definition
GCAS ground collision avoidance system GNSSP GNSS Panel (ICAO) HDD head-down display
GCB generator circuit breaker GoMATS Gulf of Mexico advanced traffic surveillance HDG heading
GCC ground cluster controller (ACARS) GOMEX Gulf of Mexico HDG SEL heading select
GCP glare-shield control panel GOPS giga operations HDL hybrid data link
GCS ground clutter suppression GOS grade of service HDLC high-level data link control
GCS ground control station GOSIP government open systems interconnection profile HDLC-B HDLC-balanced
GCU generator control unit GP general purpose HDLMS hybrid data link management system
GDLP ground data link processor GPADIRS global positioning, air data, inertial reference HDMI high-definition multimedia interface
GDOP geometric dilution of precision system HDOP horizontal dilution of precision
GDP ground delay program GPCBT guidelines for the production of computer-based HDP hardware development plan
GENOT general notice training (Eurocontrol) HE altitude error

JANUARY 2011
JANUARY HIGHLIGHTS INCLUDE

AIRLINE INVESTMENT PLANS: We discuss with airlines their go-forward investment
plans for avionics equipment, both to improve operational efciency and meet future regulatory
requirements such as the ADS-B Out mandate in the United States.
MOVEMENT IN BUSINESS AVIATION: While recovery of the business aviation

segment has been postponed until 2012, according to Honeywells forecast, there were several
signs of progress toward recovery at NBAA 2010 in Atlanta, including a sizeable order by NetJets,
new aircraft launches by Bombardier and ongoing developments in airborne connectivity.
PRODUCT FOCUS: Switches. Latest developments in cockpit switches and control panels.
SPECIAL SECTION-AIRBORNE RFID: Industry leaders in the design, standards
development, manufacture and application of Radio Frequency Identication (RFID) tags in aero-
space participated in the recent Avionics Magazine webinar, Airborne RFID: Radio Frequency
Identication Takes Off. We summarize their advice on the benets, costs and technical consider-
ations of applying RFID for yable components.
Contact:
Eastern U.S., Canada and International: Joe Milroy at 215-598-0933 or jmilroy@accessintel.com
Western U.S. and Canada: Susan Joyce at 480-607-5040 or sjoyce@accessintel.com
Need to get your message out now?

Reach 17,000+ Avionics professionals via our e-letter with rates under $1,000. Or, reach thousands
per day on the Avionics Web site, www.aviationtoday.com/av with rates starting at $900. There are a
limited number of positions available so contact us now for availability. 16632

HEA head equipment assembly HTC highest two-way channel IDC internal diagnostic capabilities
HEMS helicopter emergency medical services HUD head-up display IDD interface design document
HERF high-energy radio frequency (or energy radiated HUL horizontal uncertainty level IDEN integrated digital enhanced network
fields: dense) HUMINT human intelligence IDG integrated drive generator
HF high frequency HUMS health and usage monitoring system IDI initial domain identifier
HF human factors HVPS high voltage power supply IDIQ indefinite-delivery/indefinite quantity
HFACS human factors analysis and classification HVT high-value target IDM Improved Data Modem
system HWCI hardware configuration item iDMU integrated data management unit
HFDL high-frequency data link HX heat exchanger IDP initial domain part
HFDM high-frequency data modem HYD hydraulic IDRP interdomain routing protocol
HFDR high frequency data radio HYDIM HYD interface module IDS ice detection system
HFI human factors integration Hz Hertz (cycles per second) IDS inter-domain system
HFNPDU high frequency network protocol data unit IDS integrated display system
HFOM horizontal figure of merit I IDU interactive display unit
HFS high frequency system I/O input/output IEC IAPS environmental control module
HFSG human factor study group I&TE integration and test engineering IEC International Electrotechnical Commission
HFSNL high frequency subnetwork layer IA interoperability assessment IEC International Engineering Consortium
HFWG human factors working group IAA incident awareness and assessment IED improvised explosive device
HGA high gain antenna IACSP international aeronautical communications IED insertion extraction device
HGAS HGA system service provider IEEE Institute of Electrical and Electronics Engineers
HGC head-up guidance computer IAC integrated avionics computer IF intermediate frequency
HGS head-up guidance system IAGS integrated ARINC ground station IFALPA International Federation of Airline Pilots
HGS HFDL ground station IANA Internet assigned number authority Associations
HHLD heading hold IAOA indicated angle of attack IFASS integrated system for surveillance and radio
HID host interface display IAOPA International Council of Aircraft Owners and transmission
HIL horizontal integrity limit Pilots Association IFATCA International Federation of Air Traffic Controllers
HIRF high-intensity radiated field IAPA instrument approach procedures automation Associations
HITL human in the loop IAPS integrated avionics processing system IFC indicated final cost
HITS highway in the sky IARP inverse address resolution protocol IFDL intraflight data link
HLCS high lift control system IAS indicated airspeed IFE&C in-flight entertainment and connectivity
HLE higher layer entity IAT investment analysis team IFE in-flight entertainment
HLL high level language IATA International Air Transport Association IFF identification, friend or foe
HMD helmet-mounted display IBAC International Business Aviation Council IFIS integrated flight information system
HMI hazardously misleading information IC integrated circuit IFPS integrated initial flight plan processing system
HMI human-machine interface IC intercabinet IFR instrument flight rules
HMOS high-density metal oxide semiconductor ICAO International Civil Aviation Organization IFRB International Frequency Registration Board
HMS handheld manpack and small form fit ICAO IFPP ICAO Instrument Flight Procedures Panel IGES initial graphic exchange specification
HMSD Helmet Mounted Sight & Display ICAO OCP ICAO Obstacle Clearance Panel IGES intermediate ground earth station
HMU height monitoring unit ICARD ICAO five-letter name code & route designator IGIA Interagency Group on International Aviation
HO handoff system IGV inlet guide vane
HOCSR host/oceanic computer system replacement ICAP improved capability IHAS integrated hazard avoidance system
HOTAS hands on throttle and stick ICAW Instructions for Continued Airworthiness (FAA) ILA International Law Association
HOW hand-over word ICC IAPS card cage ILM independent landing monitor
HP high pressure ICCAIA International Coordinating Council of Aerospace ILS instrument landing system
HP holding pattern Industries Association ILSP integrated logistics support plan
hPa hecto Pascal ICD interactive design center IMA integrated modular avionics
HPA high power amplifier ICD interface control document/drawing IMC instrument meteorological conditions
HPC high pressure compressor ICD installation control drawing IMG implementation manager group
HPL horizontal protection limit ICM interline communications manual IMU inertial measurement unit
HPR high power relay ICMP Internet control message protocol INFO information frame
HPSOV high pressure shutoff valve ICNIA integrated communications, navigation and INAV interactive navigation
HPT high pressure turbine identification avionics inHg inches of mercury
HRD home routing domain ICP integrated core processor INMARSAT International Maritime Satellite Organization
HS-DSAD high speed digital service access device ICS intercommunications system INMS integrated network management system
HSD high-speed data ICS interface control specification INS inertial navigation system
HSI horizontal situation indicator ICSS integrated communication switching system INTELSAT International Telecommunications Satellite
HSIT hardware and software integration test ICU instrument comparator unit Organization
HSL heading select ICU integrated control unit InterNIC Internet Network Information Center
HSR high stability reference ID identifier/identification Interop interoperability
HSRP hot standby routing protocol IDC indicator display/control IO information operations (U.S. Army)

IOC initial operating capability IS intermediate system ITU International Telecommunications Union
ION Institute of Navigation ISA industry standard architecture ITWS integrated terminal weather system
IOR Indian Ocean region ISA Instrument Society of America IUPS internal uninterruptible power supply
IOS Internet operating system ISC integrated systems controller IV isolation valve
IOT&E initial operational test and evaluation ISDN integrated services digital network IVSI instantaneous vertical speed indicator
IP intellectual property ISDOS information system design and optimization
IP Internet protocol system J
IPACG Informal Pacific ATC Coordination Group ISDU inertial system display unit J-UCAS joint unmanned combat air systems
IPC intermediate pressure compressor ISH intermediate system hello J/S jammer-to-signal ratio
IPC interprocess communication ISIS integrated sensor is structure JAA Joint Aviation Authorities
IPD industrial products division ISLN isolation JCA joint capabilities area
IPI initial protocol identifier ISMS in-flight safety monitoring system JCA Joint Cargo Aircraft
IPT integrated product team ISO International Standards Organization JAR joint airworthiness requirement
IPR Internet protocol router ISO PA ISO protocol architecture JAR-OPS Joint Aviation Regulations Operations
IPT integrated product team ISP integrated switching panel JAR-AWO JAR-all weather operations
IPT integrated project team ISP internet service provider JATO jet assisted takeoff
IPT intermediate pressure turbine ISR intelligence, surveillance and reconnaissance JCAB Japanese Civil Aviation Bureau
IR infrared ISR interrupt service routine JCAT Joint Combat Assessment Team
IRAC Interdepartmental Radio Advisory Committee ISS integrated surveillance system JFET junction field effect transistor
IR&D investment research and development ISSN intermediate system sub-network JFEX Joint Expeditionary Force Experiment
IRIG-B inter-range instrumentation group-time code ISSS initial sector suite system/subsystem JFX Joint Forces Exercise
format B ISU initial signal unit JHMCS joint helmet-mounted cueing systems
IRIS Iris Recognition Immigration System ITAR International Traffic in Arms Regulations JIIM joint, interagency, intergovernmental and
IRP integrated refuel panel ITC in-trail climb multinational (U.S. Army)
IRR internal rate of return ITD in-trail descent JIM Joint, Interagency and Multinational
IRS inertial reference system ITP in-trail procedures JIPT joint integrated product team
IRS interface requirements specification ITS integrated test system JPALS Joint Precision Approach and Landing System
IRU inertial reference unit ITSE integrated test and support environment JPDO Joint Planning and Development Office (U.S.)
AV-1210

A
JPEO
JPL
Joint Program Executive Office
Jet Propulsion Laboratory
LDA
LDA
landing directional aid
laterally displaced approach
LSN
LSP
local subnetwork
link state protocol data unit Y
JPO Joint Planning Office LDCC leaded chip carrier LSS lightening sensor system
JPS journal processing system LDCS local departure control system LTA lighter-than-air
JRANS Japanese regional air navigation system LDGPS local area differential global positioning satellite LTD laser target designator
JRC Joint Resource Council LDOC long distance operational control LTC lowest two-way channel
JSTeF JTRS Science and Technology Forum LDRCL low density radio-communications link LV lower sideband voice
JSAT joint system acceptance test LDU lamp driver unit LVC low visibility conditions
JSF Joint Strike Fighter LE link establish LVL level
JTAG Joint Test Action Group LED light-emitting diode LVDT linear voltage differential transducer
JTIDS joint tactical information distribution system LEO low earth orbiting LVP low visibility procedure
JTRS joint tactical radio system LF low frequency LVPS low voltage power supply
JUAS COE Joint Unmanned Aircraft System Center of LFE lead-free electronics LVT low volume terminal
Excellence (U.S. Army) LFR LF radio range LZ landing zone
JV joint venture LGA low gain antenna
JVMF joint variable message format LHP lighting HIRF protection M
LIDAR light detection and ranging M mach number
K LINCS long-haul/leased interfacility national airspace M2K Mobility 2000 (U.S. Air Force)
kA kiloamperes communications system M-SNDCF mobile-subnetwork dependent convergence
KARI Korea Aerospace Research Institute LISN line impedance stabilization network function
KB kilobytes (thousand bytes) LLC logical link control M-TADS Modernized Target Acquisition and Designation
KBITS LLWAS low-level wind shear alert system
Kbps
kilobits
kilobits per second LME link management entity
Sight
M/ASI mach/airspeed indicator
A
Kgls kinematic GPS landing system LMI logical management interface M/S meters per second Le
KHz kilohertz (1000 cycles per second) LMM locator middle marker M&S merging & spacing ge
KIAS knots indicated airspeed LMT local mean time MA message assurance an
KPS KB per second LNA low-noise amplifier MAA maximum authorized IFR altitude
A
KT knot LNAV lateral navigation MAB Military ATM Board (Europe)
KTS knots LOA letters of agreement MAC medium access controller R
KVA kilovolt-ampere LOB left outboard MACC military area control center
KW kilowatt LOC localizer/location MACS multiple access communication system
LODA letter of design approval (FAA) MADARS malfunction detection, analysis and recording
L LOI level of interoperability system
L1 L-band carrier (1575.42 MHz) LOM locator outer marker
L2 L-band carrier (1227.6 MHz) LON longitude MAGIC manager of air-ground interface
LAAS local area augmentation system LOPA layout of passenger accommodations communications
LACAC Latin American Civil Aviation Commission LORAN long-range air navigation MAHWP missed approach holding waypoint
LADAR laser radar LOS line of sight MALDT mean administrative and logistics delay time
LADGPS local area differential GPS LP localizer performance MALE medium-altitude, long-endurance
LAGPS local area global positioning system LPB loss prevention bulletin MALSR Medium-Intensity Approach Lighting System
LAHSO land and hold short operation LPC low pressure compressor with Runway Alignment Indicator
LAIRCM large aircraft infrared countermeasures LPDU link protocol data unit MAN metropolitan area network AI
LAM levels of avionics maintenance LPT low pressure turbine MANPADS man portable air defense system
LAN local area network LPV localizer performance with vertical guidance MAP missed alert parameter
Dis
LAPB link access protocol, balanced LRC long-range cruise MAP missed approach ana
LASER light amplification by simulated emission LRF/D laser range finder/designator MAP missed approach procedure and
of radiation LRIP low rate initial production MAP monitor alert parameter saf
LAT latitude LRM line replaceable module MAPt missed approach point
LBA Luftfahrt-Bundesamt (German equivalent of FAA) LRR long-range radar MAR mobile access router Re
LCA layered component architecture LRU line replaceable unit MARSA military assumes responsibility for separation
LCC leadless chip carrier LSA light sport aircraft MASPS minimum aviation system performance standard
LCC life cycle cost LSAS longitudinal stability augmentation system MAST multiaircraft simulation terminal
LCC low-cost carrier LSAT life support for trauma and transport (U.S. Army) MAT maintenance access terminal
LCD liquid crystal display LSB least significant bit MAV micro air vehicle
LCF link control field LSB lower sideband MAWP missed approached waypoint
LCI logical channel identifier LSD least significant digit MAX maximum
LCM life cycle management LS-DSAD low speed frame relay service access device mb millibars
LCN local communications network LS-FRAD low speed frame relay access device MB marker beacon
LCP lighting control panel LSI large scale integration MBE multiple bit error
LCR link connection refusal LSK line select key MBER minimum bit error rate

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MBPS megabytes per second MIC microphone MPDS mobile packet data service
MC master change MicroEARTS Micro Enroute Automated Radar MPEL maximum permissible exposure level
MCA minimum crossing altitude Tracking System MPM microwave power module
MCAP Manned/Unmanned Common Architecture MIDS multifunction information distribution system MPP materials, processes and parts
Processor MIDS-J Multifunctional Information Distribution MPS maintenance processor system/subsystem
MCB microwave circuit board System-JTRS MRA minimum reception altitude
MCC maintenance control computer MIDS-LVT Multifunctional Information Distribution System MRO maintenance, repair and overhaul
MCDP maintenance control display panel Low Volume Terminal MRR manufacturing revision request
MCDU multifunctional control display unit MIDU multi-purpose interactive display unit MRT mean repair time
MCI mode C intruder MILS multiple independent levels of security MRT multi-remote terminal
MCN manufacturing control number MILSPEC military specification Ms millisecond
MCOS multi-computing operating system MIL-STD military standard MSB most significant bit
MCP maintenance control panel MIMO multi-input/multi-output MSC message sequence chart
MCP mode control panel MIN minimum/minute MSCP mobile satellite service provider
MCT max continuous thrust MIPS management interface protocol specification MSD mass storage device
MCU modular concept unit MIPS million instructions per second MSG message
MCU multifunction concept unit MKR marker MSI medium scale integration
MDA minimum descent altitude MLA maneuver limited altitude MSK minimum shift keying
MDA Missile Defense Agency (U.S.) MLM mid-level management MSL mean sea level
MDAH minimum descent altitude/height MLS microwave landing system MSP Mode S specific protocol
MDAU maintenance data acquisition unit MLW maximum landing weight MSSR monopulse secondary surveillance radar
MDC maintenance diagnostic computer MM mass memory MSSS Mode S specific services
MDCRS Meteorological Data Collection and Reporting MM middle marker (glideslope) MSU mode select unit
Service MMI man-machine interface MT minimum time
MDD mission data debrief MMIC monolithic microwave integrated circuit MTA message transfer agent
MDH minimum decent height MMR multimode receiver MTBF mean time between failure
MDL multipurpose data link MMS maintenance management system MTBO mean time between outages
MDMP military decision making process (U.S. Army) MMS metering, merging and spacing MTBR mean time between removal/repairs
MDR mode digital radio MMSI miniature munitions system interface MTBUR mean time between unscheduled removal
MDS minimum discernible signal MMU memory management unit MTBUR mean time between unit replacements
MDT maintenance display terminal MMW millimeter wave MTC maintenance terminal cabinet
MDT mean downtime MNCID management network category interaction MTD maintenance terminal display
MEA minimum en route altitude diagram MTF maintenance terminal function
MEARTS Microprocessor En Route Automation Radar MNPS minimum navigation performance specification MTI moving target indicator
Tracking System MNS managed network service MTM module test and maintenance
MEC main equipment center MO managed object MTMBIU MTM bus interface unit
MEL minimum equipment list MO magneto-optical MTOW maximum takeoff weight
MEO medium earth orbit MOA memorandum of agreement MTR military training route
MEOT multiple-expert opinion team MOA military operation area MTS multi-spectral targeting system
MES main engine start MOC memorandum of cooperation MTSAT Multifunction Transport Satellite
MET meteorology MOCA minimum obstacle clearance altitude MTTDA mean time to dispatch alert
METAR meteorological aviation routine weather report MOD magneto-optical drive MTTF mean time to failure
METL mission essential task list (U.S. Army) MOD modification MTTM mean time to maintenance
METOC meteorological and oceanographic condition MODEM modulator/demodulator MTTMA mean time to maintenance alert
MF medium frequency MOPR minimum operational performance MTTR mean time to repair
MFCP multifunction control display panel requirements MTTRS mean time to restore service
MFD multifunction display MOPS minimum operational performance standards MTTUR mean time to unscheduled removal
MFDS multifunction display system MOQA maintenance operations quality assurance MU management unit
MFDU multifunction display unit MORA minimum off-route altitude MUE modernized user equipment
MFDUA miscellaneous flight data acquisition unit MOS metal oxide semiconductor MUM manned unmanned teaming
MFIT mean fault isolation time MOS military occupational specialty MUOS Mobile User Objective System
MFM maintenance fault memory MOSA modular open systems approach MUS minimum use specification
MGSCU main gear steering control unit MOSP multi-mission optronic stabilized payload MUSE multi-user system environment
MGR manager (U.S. Army) MUX multiplexer
MHD magnetic hard drive MOU memorandum of understanding mV millivolts
MHD multi-hazard display MOV metal oxide varsitor MVA minimum vectoring altitude
MHRS magnetic heading reference system MP-CDL Multi-Platform-Common Data Link MVMC marginal visual meteorological conditions
MHS message handling service MPAR multipurpose airport radar MWARA major world air route area
MHz megahertz MPEG Moving Picture Expert Group MWP meteorological weather processor
MIB management information base MPCU multiport protocol converter unit MWS missile warning system

N NEO Network Enabled Operations NOI notice of inquiry (FCC)

N1 fan speed NEPA National Environmental Policy Act NOPAC North Pacific
N2 intermediate compressor speed NESACC North, East & Southern area control centers NORAD North American Aerospace Defense Command
N3 high-speed compressor for China NOTAM notice to airmen
N-UCAS Navy-Unmanned Aerial Combat System NESDIS national environmental satellite data and NOTUS notice to users (ARINC)
NACp navigation accuracy category for position information service NPA non-precision approach
NACv navigation accuracy category for velocity NET network entity title NPDU network protocol data unit
NAC NextGen Advisory Committee NEXCOM Next Generation Air/Ground Communications NPIAS national plan for integrated airport systems
NACA National Advisory Committee for Aeronautics System NPR national performance review
NCAR National Center for Atmospheric Research NextGen Next Generation Air Transportation System (U.S.) NPRM notice of proposed rule making
NADIN national airspace data interchange network NEXRAD next-generation weather radar NPV net present value
NADIN II NADIN packet switch NFF no fault found NR network router
NAILS national airspace integrated logistics support NFS network file server NRA non-radar airspace
NAK negative acknowledgment NGIP NextGen Implementation Plan NRD network routing domain
NAPA National Academy of Public Administration NGIWG NextGen Implementation Plan Work Group NRP national route program
NAOMS National Aviation Operational Monitoring Service NGIWP NextGen Implementation Plan Work Plan NRS navigation reference system
NAPRS national airspace performance reporting system NGJ NextGen Jammer (U.S. Navy) NRZ non-return to zero
NAS national aircraft standard NIAC NAS Information Architecture Committee (FAA) NS network service
NAS National Airspace System (FAA) NIC navigation integrity category NSA National Security Agency (U.S.)
NASA National Aeronautics and Space Administration NIC network interface controller NSAP network service access point
NASPALS National Airspace System Precision Approach NIC new installation concept NSC network service center
and Landing System (FAA) NICE NAT implementation management group cost NSDU network service data unit
NAT North Atlantic region effectiveness NSEL NSAP selection
NAT North Atlantic tracks NICE network integrated cabin equipment NSEU neutron single event upset
NATA National Air Transport Association NIEC NextGen Integration and Evaluation Capability NSSL National Severe Storms Laboratory (U.S.)
NATCA National Air Traffic Controllers Association (U.S.) NIH not invented here NTDA NEXRAD Turbulence Detection Algorithm
NATS National Air Traffic Services (U.K.) NIMA National Imagery and Mapping Agency (U.S.) NTIA National Telecommunications and Information
NATS North Atlantic track system NIMS NAS infrastructure management system Administration (U.S.)
NAT TFG North Atlantic Traffic Forecasting Group NIR network interface router NTF no trouble found
NAV navigation NIRV network interface router VHF datalink NTSB National Transportation Safety Board (U.S.)
NAVAID navigational aid NIS not in service NTST National Television Systems Committee
NAVAIR Naval Air Systems Command NISC NAS information security coordination NUC navigation uncertainty category
NAVSAT navigation satellite NIST National Institute of Standards and Technology NUCp navigation uncertainty category for position
NAVSEA Naval Sea Systems Command NIU North American ISDN User Forum (NIST) NUI network user identification
NBAA National Business Aviation Association NIP network interface processor NUP NEAN update program
NC numerical control NL network layer NVCD night vision cueing and display
NC3A NATO Consultation, Command and Control NLM network loadable module NVIS night vision imaging system
Agency NLP network layer protocol NVM non-volatile memory
NCATT National Center for Aircraft Technician Training NLR Netherlands National Aerospace Laboratory NVRAM non-volatile RAM
NCD no computed data NM nautical mile NVS National Airspace System Voice Switch (FAA)
NCES Net-Centric Enterprise Services NM network management NWS National Weather Service (U.S.)
NCI not currently implemented NMC National Meteorological Center NWxP NextGen Weather Processor (FAA)
NCO Network Centric Operations NMCCD network management category class diagram
NCOIC Network Centric Operations Industry Consortium NMCD network management category diagram O
NCOW net-centric operations and warfare NMF network management function O-QAR optical quick access recorder
NCP NAS change proposal NMIRS network management interface requirements O&M operations and maintenance
NCS network control system specification O&S operating and support
NCS network coordination station NML NATO Maturity Levels OAC oceanic area control center
ND navigation display NMP network management plan OAS oceanic automation system
NDB navigation database NMS network management system OASIS operational area satellite information system
NDB nondirectional radio beacon NMS navigation management system OASIS operational and supportability implementation
NDI nondestructive inspection NNEC NATO NEC system
NDI nondevelopmental item NNEW NextGen Network Enabled Weather (FAA) OASIS organic airborne and surface influence sweep
NE network element NOAA National Oceanic and Atmospheric OASYS obstacle avoidance system
NEAN North European ADS Network Administration (U.S.) OAT operational acceptance test
NEAP North European CNS/ATM application project NOC network operations center OAT outside air temperature
NEC Network-Enabled Capability NOC note of change OATS orbit and attitude tracking system
NED Network Enterprise Domain NOCAR North Atlantic oceanic concept and OBP operational build plan
NELS Northwest European Loran System requirements OBS omnibearing selector
NEMA National Electrical Manufacturers NOCC National Operational Control Center OBS optical bypass switch
Association (U.S.) NO COM no communication OCA oceanic control area

OCC occasionally connected computing OS open service PAU passenger address unit
OCC operations control center OS operating system PAVES programmable audio video entertainment
OCD oceanic clearance delivery OSA operational safety assessment system
OCIG Oceanic Communications Improvement Group OSCAR Orbiting Satellite Carrying Amateur Radio PAWES performance assessment and workload
OCO overseas contingency operations OSD Office of the Secretary of Defense (U.S.) evaluation
OCP oceanic clearance processor OSDS oceanic systems development support PAX passenger
OCTAS obstacle cable and terrain avoidance system OSE open systems environment PBD place bearing/distance (waypoint)
ODA open document architecture OSED operational service and environment definition PBID post burn-in data
ODA Organization Designation Authorization OSEIC operational service and environment information PBN performance-based navigation
ODAPS oceanic display and planning system capture PBL performance-based logistics
ODIAC operational requirements for ATM air/ground OSGCS one system ground control station PBX public/private branch exchange
data communications (Eurocontrol) OSI open systems interface/interconnection PC personal computer
ODID operational display and input development OSIE OSI environment PC printed circuit
ODIN observe, detect, identify, neutralize OSI-RM OSI-reference model PCA physical configuration audit
ODL oceanic data link OSJTF Open Systems Joint Task Force (U.S.) PCB printed circuit board
ODL optical data link OSPF open shortest path first PCC pilot controller communication
OEI one engine inoperative OSPGCS one system portable ground control station PCD panoramic cockpit display
OEM original equipment manufacturer (U.S. Army) PCI peripheral component interface
OEP Operational Evolution Partnership (FAA) OSR order status report (32-bit local bus)
OES Office of Emergency Services OSRVT One System Remote Video Terminal PCI protocol control information
OEU overhead electronics unit OTA Office of Technology Assessment (U.S.) PCM pulse code modulation
OFDM orthogonal frequency division multiplexing OTA other transaction agreement PCMIA Personal Computer Memory Card
OFDPS oceanic flight data processing system OT&E operational test and evaluation Interface Association
OFP operational flight program OTFP operational traffic flow planning PCO protocol converter unit
OGE operational ground equipment OTH over the horizon PCU passenger control unit
OHA operational hazard assessment OTM-4D Oceanic Trajectory Management-4D PCU personal control unit
OHSC overhead stowage compartments OTP Office of Telecommunications Policy (U.S.) PCU power control unit
OHU overhead unit (HUD) OTS off the shelf PCU program coordination office
OI operational improvement OVHT overheat PD profile descent
OID object identifier PDB performance data base
OIG Office of Inspector General (U.S.) P PDC pre-departure clearance
OIS operational information systems P2FEP Preliminary Eurocontrol test of air/ground PDCU panel data concentrator unit
OIT onboard information terminal datalink (PETAL)-II front-end processor PDD package design document
OJT on-the-job training P3I preplanned product improvements PDDI product definition data interface
OLAN onboard local area network P-Code GPS precision code PDF primary display function
OLDI on-line data interchange P-DME precision DME PDL program design language
OLED organic LED P-RNAV precision area navigation PDM predefined controller text message
OM outer marker P/F poll/final PDM project development manager
OMB Office of Management and Budget (U.S.) P/RST press to reset PDN public data network
OMS onboard maintenance system PA passenger address PDOP position dilution of precision
OMT object modeling technique PA power amplifier PDR preliminary design review
OMT onboard maintenance terminal PA precision approach PDS persistent data storage
ONR Office of Naval Research (U.S.) PABX private automatic branch exchange PDS primary display system
OOA object-oriented analysis PAC path attenuation compensation PDU protocol data unit
OOD object-oriented design PACIS passenger address and communication PE precision engagement
OODA observe, orient, decide and act interphone system PECT peer entity contact table
OOOI out/off/on/in PAD packet assembler-disassembler PED portable electronic device
OPA operational performance assessment PAL programmable array logic PEO C3T Army Program Executive Office Command,
OPAS overhead panel ARINC 629 system PAM pulse amplitude modulation Control and Communications Tactical
OPBC overhead panel bus controller PAMRI peripheral adapter module replacement item PER packed encoding rule
OPD Optimized Profile Descent PANS-OPS procedures for air navigation services-aircraft PERT program evaluation and review technique
OPS operations operations PETAL preliminary Eurcontrol test of air/ground
OPS OPS per second PANYNJ Port Authority of New York and New Jersey data link
OPSPECS OPS specifications PAPD precise and accurate positioning device PF pilot flying
OPU overspeed protection unit PAPI precision approach path indicator PF power factor
OPV optionally piloted vehicle PAR precision approach radar pFAST passive final approach spacing tool
OR operational requirements PARTNER Partnership for Air Transportation Noise and PFC passenger facility charge
ORB object request broker Emissions Reduction PFC primary flight computer
ORD operational requirements document PAT process action team PFCS primary flight control system
ORD operations readiness demonstration PATS portable avionics test solution PFD primary flight display

PHARE Program for Harmonized ATM Research in PPS precise positioning service PS power supply
Europe (Eurocontrol) PPS pulse per second PSA PS assembly
PHY physical PRAIM predictive RAIM PSD port sharing device
PI parameter identifier PRF pulse repetition frequency PSDN packet switched data network
PICMG PCI Industrial Computer Manufacturers Group PRI primary rate interface PSE packet-switching exchange
PIA performance, integrity and availability PRM precision runway monitor PSEU proximity sensor electronic unit
PICS protocol implementation conformance PRM-A Precision Runway Monitor-Alternate (FAA) PSL projected service life
statements PROM programmable read-only memory PSL/PSA problem statement language
PID parameter identifier PRN pseudo random noise /problem statement analyzer
PID pilot information display PRS public regulated service PSM power supply modules
PID primitive identifier PRSOV pressure regulating and shutoff valve PSN packet switching network
PID process ID
PIM programmable infosec module
PIP product improvement program
PIREP pilot report
PKI public key infrastructure
PL parameter length
PLA power lever angle
PLB personal locator beacon
PLBT personal locator beacon and voice transceiver
PM program manager
PM phase modulation
PMA parts manufacturer approval Aviation Today is
PMA parts manufacturer authority your Internet-hub for
PMA permanent magnet alternator
market intelligence
PMAT portable maintenance access terminal
PMC provisional memory cover and business resources,
PMC PCI mezzanine card offering up-to-the-
PMG permanent magnet generator
minute news and
PMOS p-type metal oxide semiconductor
PMP project/program management plan expert analysis in all
PMS performance management system aspects of the world of
PN pseudo noise aviation including:
PNCS performance navigation computer system
PND primary navigation display
PNF pilot not flying Air Safety Regional Aviation
PNR point of no return
PO part of
Air Finance Avionics
POA plain old ACARS Aircraft Valuation International
POA position offset applied Airports/Ground Coverage of Airlines
POC point of contact
POC proof of concept
Services Navigation
POCC project operations control center Aviation Maintenance Rotorcraft
POH pilots operating handbook
POM program objective memorandum
POP plug-in optronic payload
The web site also features a comprehensive job
POP point of presence
POR Pacific Ocean region board, free white papers, blogs, video, magazine and
POR program of record newsletter archives, an events calendar, industry links
POSIX portable operating system interface and more.
POTS plain old telephone system/service
PPA production preparation agreement
PPDU physical layer protocol data unit
PPI planned position indicator
PPL processor-to-processor link
PPM pages per minute Find all your aviation needs in one place.
PPM parts per million
PPM pulse position modulation www.aviationtoday.com
PPP point-to-point protocol
PPS packets per second 17894

PSPL preferred standard parts list Traffic Control RF radio frequency

PSR primary surveillance radar RAC runway analysis chart RF radius-to-fix
PSS proximity sensor system RAD rapid application development RFA Regulatory Flexibility Act (U.S.)
PSSA preliminary system safety assessment RAE Royal Aircraft Establishment (Farnborough) RFC request for comments
PSTN public switched telephone network RAeS Royal Aeronautical Society (U.K.) RFG requirement focus group
PSU passenger service unit RAF requirements analysis folder RFI radio frequency interference
PT plane talk RAF Royal Air Force (U.K.) RFI request for information
PTAN precision terrain aided navigation RAI radio altimeter indicator RFID radio frequency identification
PTD performance test domain RAID redundant arrays of independent disks RFM rotorcraft flight manual
PTI packet type identifier RAIM receiver autonomous integrity monitoring RFMS rotorcraft flight manual supplement
PTM peripheral transition module RALA request automatic line adapter RFO request for offer
PTR production test requirements RALT radar altimeter RFP request for proposal
PTS problem tracking system RAM-T reliability, availability, maintainability and RFQ request for quote
PTSD production test specification document testability RFU radio frequency unit
PTT push to talk RAM random access memory RGB red green blue
PTU power transfer unit RAMICS rapid airborne mine clearance system RGCSP Review of the General Concept of Separation
PV parameter value RAMS reliability, availability, maintainability, Panel (ICAO)
PV photovoltaic sustainability RGL regulatory guidance library
PVC permanent virtual circuit RAP required automation performance RGS relay ground station
PVD plan view display RAPT regional airspace procedures team RH radio handler
PVT position, velocity, time RAS route area statistics (IATA) RHF ridiculously high frequency
PWM pulse-width modulation RATMP required air traffic management performance RHO response on handoff
PWR power RBT reference business trajectory RHSM reduced horizontal separation minima
PXI PCI extensions for instrumentation RC radio controlled RI runway incursion
RCAG remote control air-to-ground RIB routing information base
Q RCAT Reconfigurable Cockpit and Avionics Testbed RIN Royal Institute of Navigation (U.K.)
QA quality assurance RCD radar cable detection RIP routing information protocol
QAP QA plan RCE radio control equipment RISC reduced instruction set computer
QAR quick access recorder RCF required communications performance RLE response on link establishment
QDR quality defect report RCL radio communications link RLG ring laser gyro
QDR quality deficiency report RCO remote communications outlet RLS reliable link service
QEC quadrantral error corrector RCP radio control panel RM regional manager
QFE Q code, field elevation pressure RCR routing and circuit restoral RM&A reliability, maintainability and availability
QM quality management RCSU remote control and status unit RMCDE radar message conversion and distribution
QMP QM plan RCU radio control unit equipment
QMS QM system RCU remote control unit RMI radio magnetic indicator
QNH sea level pressure RC&W rack connectors and wiring RMMS remote maintenance monitoring system
QNT quint networking technology RD (taxi) route deviation RMP risk management plan
QOP quality operating procedures RD routing domain RMS risk management system
QPL qualified product list RDARA regional domestic air route area RMS root mean square
QRC quick reaction capability RDC routing domain confederation RNAV area navigation
QRH quick reference handbook RDDMI radio digital distance magnetic indicator RNP required navigation performance
QOS quality of service RDF RD format RNP AR RNP authorization required
QP quality procedure RDI radio direction indicator RNP SAAAR RNP Special Aircrew and Aircraft
QT qualification test RDI RD identifier Authorization Required
QVL qualified vendor list RDP radar data processing RNR receive not ready
RDR radar RO radio operator
R RDSS radio determination satellite system ROA recognized operating agency
R-CDL Radar Common Data Link RDT&E research, development, test and evaluation ROC rate of climb
R/W read/write REA radar electronics assembly ROC rest of operational capability
R&D research and development RE&D research, engineering and development ROD rate of descent
R&M reliability and maintainability REDAC Research, Engineering and Development ROI return on investment
R&PWG Requirements and Planning Work Group (FAA) Advisory Committee (FAA) ROIP radio over Internet protocol
RA radio altitude REFT remote unit reference transmitter (FAA) ROM read only memory
RA resolution advisory REP required environmental performance ROM rough order of magnitude
RA routing area REQ request RON remain over night
RAA Regional Airline Association RER residual error rate ROT runway occupancy time
RAAF Royal Australian Air Force RERP Reliability Enhancement and Re-engining RP routing protocol
RAAS runway awareness and advisory system Program RPAT RNP Parallel Approach Transmission
RAC-GAT Russian/American Coordinating Group for Air REVS radar-enhanced vision system RPDE rapid preliminary development effort

RPG rocket-propelled grenade SADT software architecture design team SEC aircraft information security
RPI relative position indicator SAE Society of Automotive Engineers working group (AEEC)
RPK revenue passenger kilometers SAFIR systems aid for integration and fault reporting SEC software enabled control
RPM revolutions per minute SAI system architecture and interfaces SECAM sequential color with memory
RPOA Recognized Private Operation Agency SAI System Architecture and Interfaces SEI Software Engineering Institute
RR receive ready Subcommittee (AEEC) SEL select identifier
RRI router reference implementation SAM slot allocation management SELCAL selective calling
RSDP reliable sequencing delivery-confirmation SAM South American region SEMP system engineering management plan
protocol SAM surface-to-air missile SESAR Single European Sky Air Traffic Management
RSN regional sub-network SAMM surface area movement management Research program (Eurocontrol)
RSP required surveillance performance SAMPE Society for the Advancement of Materials and SETA system engineering and technical assistance
RSSI received signal strength indicator Process Equipment SE-Vision synthetic-enhanced vision
RSTA reconnaissance, surveillance, target SAP service access points SEWG security working group
acquisition SAR search and rescue SFAR special federal regulation
RT radio telecommunication SAR synthetic aperture radar SFDF subsystem fault detection function
RTA required time of arrival SARPS standards and recommended practices (ICAO) SFE supplier (or seller)-furnished equipment
RTB rocket-towed barrier SAS stability augmentation system SFT software fault tolerance
RTC red time clock SAS station address set SG subgroup
RTCA formerly Radio Technical Commission for SASS surveillance analysis support system SI&T software integration and test
Aeronautics (Eurocontrol) SICAS secondary surveillance radar improvements
RTCM Radio Technical Commission for Maritime SAT static air temperature and collision avoidance systems
Services SAT systems and acceptance testing SICASP SICAS Panel (ICAO)
RTD resistance temperature detector SATCOM satellite communications SID standard instrument departure
RTK real-time kinematic SATNAV satellite navigation SIGINT signals intelligence
RTM radio transmission module SB service bulletin SIGMET significant meteorological information
RTO rejected takeoff SBAS satellite-based augmentation system SIL source integrity level
RTOS real time operating system SBC single board computer SIL surveillance integrity level
RTR remote transmitter receiver site SBD schematic block diagram SINCGARS single-channel ground and airborne radio
RTS request to send SBD short data burst system
RTSP required total system performance SBS Surveillance and Broadcast Services SIPRNET secret internet protocol route network
RTTI run-time type identification SC special committee (RTCA) (U.S. Army)
RTU radio tuning unit SCA self-contained approaches SIS signal in space
RU rack unit (1 inch) SCA software communications architecture SISG Systems Implementation Subgroup (IATA)
RVFP RNAV visual flight procedures SCAP Security Certification and Accreditation SIT system integration and test
RVP required vision performance Procedures (U.S. Department of Defense) SITA Societe Internationale de Telecommunications
RVR runway visual range SCAP standard computerized airplane performance Aeronautiques
RVSM reduced vertical separation minimum SCAT special category SITD system integration test description
RVT remote video terminal SCCI system controller and cockpit indicator SITP system integration test plan
RWI reduce weather impact SCD system category diagram SITP/D SITP/description
RWM R/W memory SCE super-conducting electronics SITR system integration test report
RWP required weather performance SCPC single carrier per channel SITS Security Integrated Tool Set
RWR radar warning receiver SCSI small computer system interface SIU server interface unit
RWSL runway status lights SCT Surface Collaborative Decision Making Team SIWG seat integration
RX receiver SD secure digital SJU SESAR Joint Undertaking
RZ return to zero SDA System Design Assurance SKPP separation kernels in environments
SDD system/software design document requiring high robustness
S SDD system development and demonstration SKT station-keeping technology
S0 Segment 0 SDDN software-defined data network SLA service level agreement
S1 Segment 1 SDF software development folder SLC synchronous link control
S&A sense-and-avoid SDI source destination identifier SLH system level health
S&A see and avoid SDL software data loader SLI system level interface
SA selective availability SDLC synchronous data link control SLM standard length message
SA situational awareness SDM software development methodology SLoC source lines of code
SAA special activity airspace SDP software development plan SLS satellite landing system
SAA sense and avoid SDR software defined radio SLUC system level use case
SAAAR special aircraft and aircrew authorization SDR system design review SLV service level verifier
required SDRAM synchronous dynamic random access memory SM systems management
SAASM selective availability/anti-spoofing module SDR software-defined radio SMA surface movement advisor
SAASM/EGI SAASM/embedded GPS inertial system SDU satellite data unit SMART standard modular avionics repair and test
SAD software architecture document SE systems engineering SMB serial mezzanine board

SMC Space and Missile Systems Center (Air Force) SPS stratospheric platform system SUA special use airspace
SMD standardized microcircuit drawing SPTF Spectrum Policy Task Force (FCC) SUB subscribe
SMD surface mount device SQ service quality SUM software user manual
SMDS switch multimegabit data service SQAP software quality assurance plan SUPPS regional supplementary procedures (ICAO)
SME system management entity SQB SQ/billing processor SUT system under test
SMGCS surface movement guidance and SQD SQ data SVC switched virtual circuit
control systems SQP signal quality parameter SvRR service readiness review
SMI standard message identifier SRAM static random access memory SVS synthetic vision system
SMR simulator maintainability and reliability SREJ selective reject SVU satellite voice unit
SMR specialized mobile radio SRM selective reject mode SW software
SMR surface movement radar SRM systematic risk management SWAP severe weather avoidance procedure program
SMS safety management system SRR system/software requirements review SWaP size, weight and power
SMS short messaging service SRS software requirements specification SWARM Smart Warfighting Array of Reconfigurable
SMS spectrum monitoring system SRTM shuttle radar topography mission Modules (U.S. Army)
SMT standard message text SRU shop replaceable unit SWIM System Wide Information Management (FAA)
SMU sensor management unit SRW Soldier Radio Waveform SWIT software integration and test
SMUG stores management upgrade system SSA source selection activity SWIT switched virtual circuit
SN subnetwork SSA system safety assessment SWTP software technology plan
SNA system network architecture SSAC source selection advisory committee SWTRR software test readiness review
SNAC SN access SSAP strategic safety action plan SYS system identifier
SNCR SN connection reference SSB single side band SYSCAT-B system category-B (FAA message format)
SNDCF SN dependent convergence function SSDD system/segment design document SysCI system configuration item
SNDCF/P SNDCF/protocol SSE safety, security and environmental SysDD system design document
SNICF SN independent convergence function performance
SNLE SN link establishment SSEB source selection evaluation board T
SNMP simple network management protocol SSOI sidestick order indicator T-PED transmitting portable electronic device
SNMPv1 SNMP version 1 SSR secondary surveillance radar T&E test and evaluation
SNPA SN point of attachment SSS surveillance server system TA tailored arrivals
SNPDU SN protocol data unit SSS system/segment specification TA target acquisition
SNPRM supplemental notice of proposed rulemaking SSU subsequent signal unit TA traffic advisory (TCAS)
SNR signal-to-noise ratio STA scheduled time of arrival TAA technical advanced aircraft
SNSDU SN service data unit STANAG standardization agreement TAC Theater Aviation Command
SOC service operations center STANS simulation for a total air navigation system TACAN tactical air navigation
SOC system on a chip (Eurocontrol) TADSS training aides, devices, simulators, simulations
SOF Special Operations Forces STAP space-time adaptive processing TAF terminal aerodrome forecast
SOH start of header STAR standard terminal arrival route TAF terminal area forecast (ICAO)
SOI system operator instructions STARS standard terminal automation replacement TAIC transport accident investigation commission
SOIA simultaneous offset instrument approach system (FAA) TAIS total airport management system
SOM software operator manual STB systems test bed TAMD theater air and missile defense
SOIT satellite operational implementation team STC supplemental type certificate TAMR Terminal Automation Modernization
SON statement of operational need STCA short-term traffic advisory Replacement
SOP standard operating procedure STD standard TAOARC Terminal Area Operations Aviation Rulemaking
SOSCOE System-Of-Systems Common Operating STD system technical description Committee (FAA)
Environment STDMA self-organized time division multiple access TAR trials ATN router
SOW statement of work STDMA synchronized time division multiple access TAP terminal area procedure
SP signal processing STF SATCOM tracking facility TAP tower automation program
SPAR Survivability Planner Associate Re-router STIU satellite telecommunications intermediate unit TAS traffic advisory system
SPEAR system performance evaluation and analysis STK Scandinavian Surveillance Office TASS terminal air surveillance system
reporting STM serial transition module TAT total air temperature
SPCR system problem/change report STMS surface traffic management system TAWS terrain avoidance warning system
SPI serial peripheral interface STOL short takeoff and landing TBFM time based flow management
SPI-IR surveillance performance and interoperability STOVL short takeoff/vertical landing TBM time based metering
implementing rule STP system test plan TBO trajectory based operations
SPICE STANS preparation integrator for CNS/ATM STP/D STP/description TC transport connection
environment (Eurocontrol) STR system technical report TCA terminal control area
SPM software programmers manual STR system test report TCAD traffic collision alerting device
SPO system program office STVS small tower voice switch TCAS traffic alert collision avoidance system
SPR safety and performance requirements STX start of text TCAS II traffic alert collision avoidance system II
SPS software product specification STUAS small tactical unmanned aircraft system TCC turbine clearance control
SPS standard positioning service SU signal unit TCDL tactical common data link

TCP transmission control protocol TFMS traffic flow management system TOC Tactical Operations Center
TCP/IP TCP/Internet protocol TFR temporary flight restriction TOC transfer of communications
TCS tower communications system TFTP trivial file transfer protocol TOFT tactical operational flight trainer
TD technical documentation TG transmission gate TO/GA take off/go around
TDF training device facility requirements TG4 maximum time between GSIFs timer TOM time of measurement
TDLS tower data link services (system) TG5 maximum link overlap timer TGT target TOR terms of reference (ICAO/FAA)
TDM time division multiplexed TIA Telecommunications Industry Association TOT time of transmission
TDMA time division multiple access TIF traffic information file TOW takeoff weight
TDOA time difference of arrival TIP tower integrated program TP test point
TDST tower data services terminal TIS traffic information service TP4 transport protocol class 4
TDWR terminal Doppler weather radar TIS traffic information system TPA taxi positional awareness
TDZE TouchDown zone elevation TIS-B traffic information service-broadcast TPAW turbulence prediction and warning system
TECOM technical committee TL terminal location (ACARS/AFEPS) TPDU transport protocol data unit
TEDS transducer electronic data sheet TLS target level of safety TPF transaction processing facility
TEI text element identifiers TM technical manual TPL terminal permission list
TELCO telephone company TMA traffic management advisor TPM technical performance management
TEN-T trans-European network-transport TMC traffic management coordinator TPU terminal processing units
TERA Terminal Enhancements for RNAV ATC TMC test, monitor and control TQM total quality management
TERCOM terrain contour matching TMI traffic management initiative TRACON terminal radar approach control
TERPS terminal en route procedures TMOS Transformational Satellite Communications TRADOC Training and Doctrine Command (U.S. Army)
TERPS terminal instrument procedures System Mission Operations System TRB technical review board
TES tactical exploitation system TM&O telecommunications management TRD transit routing domain
TES trials end system (for ATN) and operations TRNS terrain referenced navigation system
TESCOS terminal coordination system TMLLF terrain masking low-level flight TRR test readiness review
TF5 Task Force 5 (RTCA) TMMAC tactical airborne moving map capability TS time source
TFC traffic TMS-T traffic management system transition TS transport service
TFDM tower flight data manager/management TMU traffic management unit TSA technical services agreement
TFM traffic flow management TO technical order TSA temporary segregated areas
TFM-M Traffic Flow Management Modernization (FAA) TOA time of applicability TSA Transportation Security Administration (U.S.)
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07_AVS_120110_AcronymGuide_p08_35.indd 33 11/12/10 2:11:59 PM

TSAP transport service access point UML unified modeling language

TSAT Transformational Satellite Communications UMS unmanned system
System UMTS universal mobile telecommunications system
TSB Transportation Safety Board (Canada) UP universal platform
TSC term service commitment UPRM universal platform resource management
TSC transportation system center UPS uninterruptible power supply
TSDP technical support and data packages URET user request evaluation tool
TSDU transport service data unit URL universal resource locator
TSG technical subgroup USAACE United States Army Aviation Center of
TSG technical standards and guidelines Excellence
TSO technical standard order (FAA) USAF U.S. Air Force
TSOA technical standard order authorization USB universal serial bus
TSP tactical signal intelligence payload USC United States code
TSP transmitted signal power USCG U.S. Coast Guard
TSS technology support and services USSOCOM United States Special Operations Command
TSPD technical support and data package UTC universal time coordinated
TSTM time source transition module UTP unshielded twisted pair
TT test tools UV ultraviolet
TTG time to go UUT unit under test
TTL transistor-transistor logic UWB ultra wide-band
TTNT tactical targeting networking technology
TTP time-triggered protocol V
TTP tactics, techniques and procedures V volt
TTS time to station VITA VMEbus International Trade Group
TTW time to waypoint V/ULOS versions of the HaveQuick and VHF/UHF
TUAS tactical unmanned aerial system line of sight
TUAV tactical unmanned aerial vehicle V&V verification and validation
TURB turbulence VAC volts alternating current
TVE total vertical error VAD Visual Acquisition Disrupter
TWDL two-way data link communications VAM value-added manufacturer
TWIP terminal weather information for pilots VANS value-added network services
TWP technical work program VAR value-added reseller
TX transmit VAP value-added processor
VAS value-added services
U VASI visual approach slope indicator
UA unmanned aircraft VBV variable bleed valve
UA unnumbered acknowledgment VC virtual circuit
UART universal asynchronous receiver transmitter VCB virtual circuit bridge
UAS unmanned aircraft system VCDU video control display unit
UASTB Unmanned Aircraft System Training Battalion VCU VDL control unit
(U.S. Army) VDC volts direct current
UAT universal access transceiver VDD version description document
UATP universal air travel plan VDGS visual docking guidance system
UAV unmanned aerial vehicle VDL VHF data link
UBI uplink block identifier VDL4 VHF Data Link Mode 4
UCAV unmanned combat aerial vehicle VDLM2 VDL Mode 2
UCD universal cockpit display VDLM3 VDL Mode 3
UCI user computer interface VDLM4 VDL Mode 4
UD user data VDR VHF data radio
UDF unducted fan VDU visual display unit
UDP user datagram protocol VEE visual engineering environment
UGCS universal ground control station VER version
UGDT universal ground data terminal VFD virtual flight deck
UGS unattended ground sensors VFOM vertical figure of merit
UHF ultra-high frequency VFR visual flight rules
UI unnumbered information VGA video graphics adapter
UIR upper information region VGA video graphics array
UL uplink VG/DG vertical gyro/directional gyro
ULV ultra-low voltage VGS VDLM2 ground station
ULWG upper layer working group VHF very high frequency

VHSIC very high speed integrated circuit WGS world geodetic system 7KH2ULJLQDO+LJK
VIA versatile integrated avionics Wilco will comply 'HQVLW\0DWUL[
VIP verbal intruder positioning WIN-T Warfighter Information Network
VLJ very light jet WINN Weather Information Network
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VLSI very large scale integration WIP wide area augmentation system integrity panel
VMC vehicle management computer WIPPS wide-body integrated platform protection
VMC visual meteorological conditions system
VMD video motion detection WJHTC William J. Hughes Technical Center (FAA)
VME versa module Eurocard bus WLG wireless ground-link
VME VHF management entity (VMEbus) WMO World Meteorological Organization
VMECC versa module Eurocard card cage WMSCR weather message switching center
VMON VNMS health monitoring replacement
VMS vehicle management system WNW wideband networking waveform
^ 9
VNAV vertical navigation WORM write-once/read many (optical disk WW
9
VNE never-exceed speed technology) ^
VNMS VDLM2 network management system WP work procedure 9
VNO maximum structural cruising speed WPR waypoint position report
VOCRAD voice radio WPT waypoint /Z^d
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VOIP voice over Internet protocol WQAR wireless quick access recorder %,567
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VOR VHF omnidirectional radio range WRC World Radiocommunication Conference

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VPN virtual private network WS windshear 9

VPT virtual procedure trainer WSDDM weather support for deicing decision-making
Vr 157 knots WSR weather surveillance radar
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VR rotation speed WTMA Wake Turbulence Mitigation for Arrivals
VREF approach reference speed WTMD Wake Turbulence Mitigation for z 9
VRG VDL reference guide Departures z
VSAT very small aperture terminal WWG wireless working group 9

VSCS voice switching and control system WWW/E who, what, where/performance

VSD VDL specific DTE address evaluation (RTCA) 9
s
VSM vertical separation minimum WX weather
VSRS voice switch replacement system WXR weather radar
VSTC validation of supplemental type certificate
VSWR voltage standing wave radio X
VTAM virtual telecommunications access method X cancel
VTAS voice, throttle and stick XID exchange identification
VTOL vertical takeoff and landing XFR transfer
VTS vessel traffic system XL-ETFE cross-linked ethylene tetraflourothylene %XLOWRQ6ROLG)RXQGDWLRQV
VUIT-2 Video from Unmanned Aerial Systems XMC switched fabric mezzanine card
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XMTR transmitter VZLWFKLQJIRXQGDWLRQIRUDEURDG
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WAAS wide area augmentation system XTI X-open transport interface PDQ\WLPHVPRUHFKRLFHVWKDQ
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WACS wireless airport communication system XTP express transfer protocol WKHFRPSHWLWLRQDVROLGWUDFN
WADGPS wide area differential GPS XTRA X-ban thin radar aperture UHFRUGVXSSRUWIRUDOOPDMRU
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WAFC world area forecast center XWIND crosswind
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WAM wide area multilateration 6ZLWFK([HFXWLYHWKHEHVW
WAN wide area network Z ZDUUDQW\LQ3;,DQGWKHORZHVW
WARC World Administrative Radio Conference ZCA zero conflict airspace FRVWSHUFURVVSRLQWWKH%5,&
WARP weather and radar processor ZFW zero fuel weight LVFOHDUO\\RXUEHVWFKRLFHLQ
WAS wide area search ZOC zone of convergence KLJKGHQVLW\PDWULFHV6RJR
WASP wireless access service point Zulu Greenwich mean time WRKWWSZZZSLFNHULQJWHVW
FRPS[LKWPODQGVHHDOOWKH
WATRS west Atlantic route structure ZVF zero velocity filter
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WBS work breakdown structure For additions or corrections to the online PRUHH[LEOH
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version and the next print edition of the WUDGHPDUNVRI1DWLRQDO,QVWUXPHQWV
WDM wavelength division multiplexed
Avionics Magazine Aerospace Acronym &
WDM LAN wavelength division multiplexed local
Abbreviation Guide, contact the editors: pickering
area network
WG working group (EUROCAE) Bill Carey at bcarey@accessintel.com, or
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(PDLOXVVDOHV#SLFNHULQJWHVWFRP

military
productavionics
focus
Databus
Movement toward distributed control architectures in
commercial aircraft favors 1553 solutions
By Barry Rosenberg
O
ne of the biggest drivers
for new generation databus
technology is the transmis-
sion of video, images and
Photo courtesy AgiLynx
other visual information

such as for terrain awareness and map-
ping, as well as weather radar which
requires large increases in data quantity
AgiLynx Lynx Protocol
and refresh rates. Converters transfer data
Manufacturers of systems that address between Mil-Std-1553B and
high bandwidth databus networking face processing from a ARINC 429 databusses.
a number of challenges. These include flight control computer control computer to communicate with
maintaining the reliability and robustness (usually an array of redundant these intelligent actuators. That is some-
proven in lower bandwidth networking computers), which would be employed thing that didnt exist in previous systems,
technology, while at the same time keeping to control actuators. The actuators were and creates a challenge for designers
the cost and power requirements in the basically very simple devices, where the because they need to develop something
same range. In addition, higher bandwidth central flight computer would implement that is very reliable, deterministic, fault tol-
applications typically generate more data and manage all aspects of the control erant and with a low bit error rate in terms
and put pressure on downstream technol- loop. The actuator was just an actuator of timing within the various control loops.
ogy such as storage (which requires more and had no processing power. These are all things that Mil-Std-1553
memory) and off-aircraft data links (which What is happening today, with the brings to the table, said Stabile. So you
have to operate at high speeds). A350 being one of the commercial air- see emerging applications on commercial
Another challenge relates to the cost craft leading the way, is the distribution in aircraft that need a robust deterministic
and viability of trying to route new high- implementation of these control laws. The databus for applications that didnt use
speed data buses to multiple points within central flight computer will still do the top- it before. Airbus was one of the first to
the aircraft. Both military and commer- level implementation of the flight control recognize that 1553, even though a fairly
cial environments are typically noisy and function, but now intelligent actuators old technology, is still commercially viable
rife with various types of interferers that with a processor contained within will and one of the best solutions out there.
may cause dramatic effects on the integ- implement its part of the control loop. We are seeing a lot of interest from other
rity of the data on the network. Ensuring Rather than having one central processor manufacturers in 1553, and a lot has to do
a high degree of integrity and determin- that does everything, the actuators can with Airbus initial selection. The other
ism must be built into the network design start to take high level commands and part is the evolution of systems, and the
from the ground up. handle some of the local control. movement toward distributed architecture
The advantage has to do with redun- in critical systems like flight controls.
Distributed Architecture dancies and safety, said Stabile. You can If you look at an A350, you dont
What we are seeing as a continuing trend get tighter control loops because you are have a homogenous network across the
in the commercial aircraft industry is the not going end-to-end in terms of how you aircraft. What you end up doing is parti-
movement toward a more distributed con- are processing; you are splitting that power tioning the network based on functional
trol architecture, said Christopher Stabile, up. What you want is a more efficient sys- need. The network that streams video to
marketing communications manager with tem where you have less processing power a seatback TV screen is different than the
Data Device Corp. (DDC), of Bohemia, within the flight control computer because network used to control the flight control
N.Y. He referred specifically to the Airbus it is distributing to multiple elements, while systems or the engine. When they start
selection of Mil-Std-1553 databus technol- it is done in such a way that you have a lot looking at these systems, they look at
ogy on its under-development A350XWB. of inherent redundancy for safety aspects. them independently. With flight controls,
Flight control, for example, was With such a distributed architecture, for example, it is not a high-data-rate
always accomplished with centralized there is also created a need for the flight application because it is a series of very
08_AVS_120110_ProductFocus_p36-40.indd 36 11/15/10 10:40:51 AM

small commands being sent through a
Market Moves
tight loop. What is interesting is that even
though 1553 is not as fast as some newer Following are developments announced by manufacturers of aerospace databus products.
technology, it is more than fast enough for Ballard Technology, based in Everett, Wash., in
some of these emerging applications. September announced the availability of an optional
Such a distributed architecture also orange case for its line of pocket-sized USB Avionics
needs a backbone network to be effective. Databus Interfaces. The case allows it to be clearly
ARINC 664, sometimes called AFDX seen and identified as test equipment for removal from
(Avionics Full-Duplex Switched Ethernet), an aircraft prior to its return to service after mainte-
used on both Airbus and Boeing aircraft, nance and support operations, the company said. The
Photo courtesy Ballard Technology
is trending in the last few years as the high- standard case color is black. The USB interfaces enable
speed network of choice to basically tie engineers and technicians to test, simulate and analyze Mil-Std-1553, ARINC 429 and ARINC
all the systems together and provide the 717 avionics databuses using a PC.
Vector Aerospace, of Stuttgart, Germany, in September said it had added ARINC 810, 812,
backbone for sharing data between each
825 and 826 support to its development and test tools, CANoe.CANaerospace 7.2. Vector said
of these independent systems. the latest version of CANoe.CANaerospace and CANalyzer.CANaerospace contain functions for
Meanwhile, Edgewater Computer Sys- networking with ARINC protocols and the CANaerospace protocol, allowing developers to use
tems of Ottawa continues to mature its these functions for creating simulations and analyzing and stimulating bus traffic.
Extended 1553 (E1553) databus technolo- Holt Integrated Circuits, Mission Viejo, Calif., released several new databus products in
gy into reduced size and power solutions, 2010, including an ARINC 429 line driver powered by a +5V supply, the HI-8592.
and is working to expand market interest The company also introduced HI-8448PCx, calling it the worlds smallest octal ARINC 429
in places like Europe and Asia. line receiver. Each receiver channel will translate incoming ARINC 429 signals to TTL/CMOS
Internationally, an effort is now well compatible digital outputs. The devices operate from either a 5V or 3.3V supply and have a
underway to ensure that the technology common mode capability of +/- 5V with respect to ground.
is standardized by a recognized standards AIM GmbH, of Freiburg, Germany, in October introduced a family of USB-based products
body, said Greg Fielding, Edgewater vice for laboratory, field test and data loading applications. The APU429-x and APU1553-x modules
president of marketing. Standardization are implemented in shirt-pocket sized boxes, which can connect to various types of computer
systems via USB ports. USB2.0 connections are available on almost any computer system, so
remains a high priority in order to ensure
test engineers no longer have to dedicate a host platform for their ARINC 429 or Mil-Std-1553
interoperability and compatibility among requirements by using our APU429-x/ APU1553-x modules, said Marco Maier, lead hardware
multiple potential sources of supply. design engineer for the companys USB-based module family.
To expand its reach, Edgewater plans Also in October, AIM released a PCI-ExpressCard system for Mil-Std-1553 testing. The AEC1
to release an Extended 1553 PCI Mez- 553-x integrates 1 or 2 dual redundant Mil-Std-1553 A/B bus streams on one ExpressCard.
zanine Card (PMC) and a next generation In March, Excalibur Systems, of Elmont, N.Y., introduced the EXC-664PCIe board, an
Evaluation Kit (EVK) integrated with the ARINC 664 test and simulation board designed to help integrate avionics suites, and can
PMC for customer integration, character- simulate up to two AFDX end systems with full dual redundant support for receive and
ization and test activities. transmit operation. The board contains room for two standard 4000 modules that can support
Edgewater had initially focused in the multiple channels of other avionics communications protocols including Mil-Std-1553, ARINC
last few years on very high-speed data 429, Serial, Discrete, ARINC 708 and CANbus.
rates of 100 to 200 Mbps, though its API Technologies Corp., based in Ronkonkoma, N.Y., in October received a $1 million order
efforts today fall into an area of speeds for its National Hybrid Mil-Std-1553 transceivers. The company said the order will be used by a
down at the 1 to 5 Mbps level. That is a Fortune 50 company in its line of military avionics equipment.
data rate at an intersection where older In July, API Technologies introduced the NHi-1565 SOIC, a hermetically sealed ceramic Dual
1553 Data Bus Transceiver to its National Hybrid product line. The NHi-1565 SOIC comes in a
civil and military aircraft without high-
standard 5V or a low voltage 3.3V version. It measures 0.275 by 0.505 by 0.095 inches, and is
speed data bus capabilities can potentially available in a temperature range of -55C to +125C.
be upgraded to take advantage of data- GE Intelligent Platforms, Charlottesville, Va., in March released version 7 of its Bus-
rich applications. Tools-1553 Bus Analyzer software application, designed for analyzing, testing and simulating
Operators of these aging aircraft con- data traffic on the 1553 bus. The avionics market is moving away from character-based bus
tinually face the choice of purchasing new analyzers in favor of more intuitive, GUI-based solutions that are much easier to use, said
aircraft or retrofitting older aircraft with Ben Daniel, GE Intelligent Platforms business manager for avionics. With the BusTools-1553
new equipment. This is particularly true version 7 announcement, our spirit of partnership sees us making available a capability that
with military or quasi-military fleets such has been much requested by our customers that will allow them to transition to future hard-
as those operated by the Coast Guard or ware platforms with minimal effort and expense.
other organizations that fly aging C-130s, Beta Transformer Technology Corp., Bohemia, N.Y., a subsidiary of Data Device Corp.,
for example that are decades old. introduced the BXC-A-2 two-stub box coupler, which achieves full Mil-Std-1553 compatibility.
For those operators, the attraction The company said it is ideal for system development, lab, test and flight line applications.
Sital Technology, Kfar-Saba, Israel, in October received a formal approval from the U.S.
of adding new electronics in the form
Patent and Trademark Office for its Tails-Code-Key technology, a method for detecting a
of weather radar, flat-panel displays,
fault in a bus network. The company said Tails-Code-Key does not interfere with activity on
advanced GPS and terrain-warning sys- the bus, and therefore can be used for detecting problems during normal operation.
tems is strong, but seemingly not possible. This is a major breakthrough in avionics, cars and other systems maintenance and reli-
The problem is compounded due to the ability, said Ofer Hofman, founder of Sital.
fact that military aircraft electronics often In June, the company released Minuet, a family of compact, standalone, Mil-Std-1553B
communicate via the Mil-Std-1553B data- protocol terminals, which include Bus Controller, Remote Terminal and Monitor.
bus standard, while much of commercial
08_AVS_120110_ProductFocus_p36-40.indd 37 11/12/10 12:18:06 PM

electronics use the ARINC 429 standard. desktop computer with a point-and-click FPGA solutions with an IP core of some
A flexible, COTS (commercial off- application that downloads the configu- sort, with the idea being that a company
the-shelf) solution to the problem of ration details into the converter without takes the function and incorporates it
converting Mil-Std-1553B data to the affecting the DO-178B certification of the into their own FPGA, which is then used
ARINC 429 standard and vice-versa can software in the unit. to implement the 1553 interface.
provide system integrators with a low- We faced the challenge of creating a What we have seen is the interest in
cost method of adding new electronics to configuration file that can be considered IP-based solutions has declined dramati-
older aircraft, said David Garcia, vice an input to the COTS unit, and then cally, said Stabile. Instead of designing
president of marketing and sales with creating a verification test suite that com- their own boards to do it, or implement-
AgiLynx Inc., of Billerica, Mass. pletely tests the range of possible configu- ing some sort of custom or semi-custom
Other companies, including Ballard ration file inputs, in order to allow our solution, people are buying complete
Technology, Everett, Wash., and YED, of customers the ability to configure their board solutions.
Bristol, U.K., have recently developed air- units without writing or verifying new Many companies are becoming more
borne protocol converter units to convert software, said Garcia. of an integrator and less of a custom hard-
the 1553 standard to ARINC 429. Their ware developer. Everybody used to design
units have been tested to environmental Other Trends their own custom boards, especially since
standards such as RTCA DO-160, which There are a number of additional trends the military was all about custom solu-
can be cross-referenced to older military in the databus world, specifically around tions. What has changed over the years
standards, and have been proven to oper- 1553 that have held strong for the past is now commercial off-the-shelf systems
ate in airborne environments. several years. have taken off to the point where people
The problem is to come up with a One is the incorporation of what used are looking at standard form factor boards
product that meets almost everyones to be two separate devices into one pack- like PMC mezzanine cards. Companies are
needs as a COTS solution, which is quite age. Designing a 1553 interface has typi- putting together pieces rather than devel-
the challenge given the variety of param- cally meant the need for one electronic oping them from scratch.
eters and data formats found on aircraft device containing the integrated circuits
databuses, said Garcia. and the other consisting of a transformer. Avionics Magazines Product Focus is a
The general approach is to provide Some manufacturers are now combining monthly feature that examines some of the
a variety of I/O options, with software the two devices into one integrated pack- latest trends in different market segments
configurability to handle the detailed age for less weight and better performance. of the avionics industry. It does not repre-
conversion needs. AgiLynxs approach is Another design trend related to 1553 sent a comprehensive survey of all compa-
to perform the configuration process on a interfaces is away from companies using nies and products in these markets.
Companies
Actel Corp. . .......................................................www.actel.com Hytronics Corp. .................................... www.hytronicscorp.com

Aero Express . ........................................ www.aeroexpress.com ITCN ............................................................... www.itcninc.com
Aeroflex . ....................................................... www.aeroflex.com Kontron . ....................................................... www.kontron.com
AgiLynx, Inc. ....................................................www.agilynx.com LeCroy Corp. ................................................... www.lecroy.com
AIM GmbH ................................................ www.aim-online.com MAX Technologies ............................................. www.maxt.com
Airflair .............................................................. www.airflair.co.uk Milestek ................................................www.milestek1553.com
Alta Data Technologies . .....................................www.altadt.com National Hybrid Inc. . ............................. www.nationalhybrid.com
API Technologies Corp. . .................................www.apitech.com North Atlantic Industries . .......................................www.naii.com
Avionica, Inc. .................................................www.avionica.com North Hills Signal Processing ....................www.northhills-sp.com
Avionics Interface Technologies ...................... www.aviftech.com Phoenix Logistics . ................................... www.phxlogistics.com
Ballard Technology . .................................. www.ballardtech.com Raycom Electronics ....................... www.raycomelectronics.com
Barco . ............................................................. www.barco.com RTX Systems ............................................www.rtxsystems.com
Beta Transformer Technology Corp. .............. www.bttc-beta.com Sabritec ........................................................www.sabritec.com
Curtiss-Wright Controls ............................. www.cwcontrols.com Sanmina-SCI Technology .........................www.sanmina-sci.com
DAC International ..............................................www.dacint.com Sital Technology ........................................... www.sitaltech.com
Data Bus Products .......................... www.databusproducts.com Tech SAT GmbH . ...........................................www.techsat.com
Data Device Corp. ....................................... www.ddc-web.com Tepro of Florida . .................................. www.tepro-vamistor.com
Edgewater Computer Systems ...................... www.edgewater.ca Trompeter Electronics ..................................www.trompeter.com
EFW ....................................................................www.efw.com Ultra Electronics..................................... www.ultra-electrics.com
Emteq ............................................................. www.emteq.com Vector GmbH ...................................................www.vector.com
Excalibur Systems ....................................... www.mil-1553.com Western Avionics Ltd. ............................... www.western-av.com
GE Intelligent Platforms ...................................... www.ge-ip.com YED USA ............................................................ www.yed.com
Holt Integrated Circuits .......................................www.holtic.com
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Innovation
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%7B,QQRYDWLRQB$YLRQLFVB)XOOB3JLQGG $0

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Aerospace Acronym Guide

Avionics Magazine holds four Royal Aeronautical

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ADVERTISING & BUSINESS

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REAL helicopter operators attend HELI-EXPO !

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The capabilities of system

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ARINC 664-P7 with A/V and Hard

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less complex distributed computing and

TTEthernet / TTP TTEthernet Switches COTS Components

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AERA automated en route air traffic control 8FXPSLIBSEUPPQUJNJ[FPVSDBCMFEFTJHOTUPNFFUUIFDVTUPNFSThOFFET

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CBP Customs and Border Patrol (U.S.) CG center of gravity operations

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Real-time Aerial Surveillance Video

communications link with BLOS capabilities.

To make your ISR platform a communications

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Wi-Fi wireless fidelity Emily Feliz at efeliz@accessintel.com. (DVW&RDVW5HJLRQDO2IILFH:REXUQ0$7HO