Data link Acronyms

Acronym	Definition
4DTRAD	4- Dimensional Trajectory Datalink (datalink service)
a/c, A/C	Aircraft
A/G	Air/Ground
A4E	Airlines for Europe
AAC	Airline Administrative Communications
AAGR	Annual Average Growth Rate
ACARS	Aircraft Communication Addressing and Reporting System
ACSP	Air/Ground Communications Service Provider
ACK	ACKnowledgment
ACL	ATC Clearance Service
ACTP	Actual Communications Technical Performance
ACMP	Actual Communications Technical Performance Monitored
ADS-B	Automatic Dependant Surveillance - Broadcast
ADS-C	Automatic Dependant Surveillance - Contract
ADS	Automatic Dependant Surveillance
AF6	Advanced Functionality 6 Initial Trajectory Information Sharing, one of the Common Project (CP) areas of activities
AFN	Aeronautical Facilities Notification
AGR	Air/Ground Router
AIP	Aeronautical Information Publication
AIS	Aeronautical Information Service
AISD	Airline Information Services Domain
AMC	ATC Microphone Check Service
ANSP	Air Navigation Service Provider
ANS CZ	the ANSP of Czech Republic
ANS Finland	the ANSP of Finland
AO	Aircraft Operator
AOA	ACARS over AVLC
AOC	Airline Operational Communications
APT	Airport
ARINC	Aeronautical Radio Incorporated
ARINC (referring  to a CSP)	The CSP which is now part of the Collins Aero Group
ARINC (referring  to a  specification )	Avionics specifications  published/maintained  by AEEE (Airline Electronics Engineering  Committee)
ASN.1	Abstract Syntax Notation One
ATC	Air Traffic Control
ATCO	Air Traffic Controller
ATFM	Air Traffic Flow Management
ATS	Air Traffic Services
ATM	Air Traffic Management
ATN	Aeronautical Telecommunication Network
ATSU	Air Traffic Services Unit
AU	Airspace User(s)
Austro Control	the ANSP of Austria
AVINOR	the ANSP of Norway
AVLC	Aviation VHF Link Control
B1/B2/B3 or  ATN B1 / ATS B2  / ATS B3	Baseline 1/2/3 (ATS services/applications packages)
BULATSA	the ANSP of Bulgaria
BW	Bandwidth
CBA	Cost Benefit Analysis
CEF	Connecting Europe Facility (for Transports)
CFT	Call For Tender
CM	Context Management
COCR	Communications Operating Concept and Requirements
CPDLC	Controller/Pilot Data Link Communications
Croatia Control	the ANSP of Croatia
CRD	Clearance Request and Deliver
CS	Community Specification
CSC	Common Signalling Channel
CSMA	Carrier Sense Multiple Access
CSP	Communication Service Provider
CTA	Controlled Time of Arrival
CVME	Centralized VDL Management Entity
D‐ATIS	Digital Automatic Traffic Information Service
DCAC - Cyprus	the ANSP of Cyprus
D-VOLMET	Digital Vol Meteo
DFS	the ANSP of Germany
DIGITS	Demonstration of ATM Improvements Generated by Initial Trajectory Sharing
DL	Datalink
DLS	Datalink Service(s)
DLIC	Data Link Initiation Capability
DPM /DMPF	Datalink Performance Monitoring Function (EUROCONTROL NM working activity)
DP	Deployment Plan
DRNP	Dynamic Required Navigation Performance
DSG	Datalink Support Group working arrangement
DSP	Data‐Link Service Provider
DSNA	the ANSP of France
DST	Datalink Support Team
DTE	Data Terminal Equipment
EANS - Estonia	the ANSP of Estonia
EASA	European Aviation Safety Agency
EBAA	European Business Airline Association
EC	European Commission
ECAC	European Civil Aviation Conference
ECTL	EUROCONTROL
EFB	Electronic Flight Bag
EIRP / ERP	Effective Isotopically Radiated Power (ITU RR 1.161)/ Effective Radiated Power (ITU RR  1.162)
ELSA	Enhanced Large Scale ATN (SJU Study on VDL2)
ENAIRE	the ANSP of Spain
ENAV	the ANSP of Italy
ENR	En route
EPP	Extended Projected Profile
ESA	European Space Agency
ESRA	EUROCONTROL Statistical Reference Area
ESSP	European Satellite Services Provider
EU	European Union
EUR	ICAO European Region
F2F	Face To Face
FAA	the ANSP of USA
FANS	Future Air Navigation System
FDPS	Flight Data Processing System
FEP	Front-End Processor
FIR	Flight Information Region
FIS	Flight Information Service
FL	Flight level
FMS	Flight Management System
FSL	Frequency Support List
GA	General Aviation
GND	Ground
GRAIHO	Ground Requested Air Initiated Hand Off
GS	Ground Station
GSIF	Ground Station Information Frame
HCAA	the ANSP of Greece
HCL	the ANSP of Hungary
HO	Handover
IAA	the ANSP of Ireland
I4D	Initial 4 Dimensional (datalink service)
IATA	International Air Transport Association
ISAVIA	the ANSP of Ireland
ICAO	International Civil Aviation Organization
ID	Identification
IDRP	Inter‐Domain Routing Protocol
IER	Information Exchange and Reporting
IFR	Instrument Flight Rules
IM	Interval Management
IP	Implementation Programme
IP	Internet Protocol
IPS	Internet Protocol Suite
IR	Implementing Rule
IS‐SME	Intermediate System ‐ System Management Entity
ITP	In Trail Procedure
KPI	Key Performance Indicator
LACK	Logical Acknowledgment
LAM	Logical Acknowledgement Message (OLDI message)
LFV	the ANSP of Sweden
LOF	Logon Forward (OLDI datalink message)
LGS	the ANSP of Latvia
LPS	the ANSP of Slovakia
LR	Long Range
LTE	Long Term Evolution
LTF	Long Term Forecast
MAC	Medium Access Control
MATS	the ANSP of Malta
MET	Meteorological
METAR	Meteorological Aerodrome Report
MF	Multi‐Frequency
MFI	Message Function Indicator
MOPS	Minimum Operational Performance Standard
MASPS	Aviation System Performance Standard or specification to check
MUAC	the ANSP of EUROCONTROL
N2	VDLM2 retransmission timer
NAN	Next Authority Notified (OLDI datalink message)
NATS	the ANSP of the UK
NAT	North Atlantic (ICAO region)
NAV Portugal	the ANSP of Portugal
NAVIAIR -	the ANSP of Denmark
NM	Network Manager (EUROCONTROL Directorate)
OCC	Operational Control Centre
OLDI	On‐Line Data Interchange
OOOI	Gate Out, Wheels Off, Wheels On, and Gate In (AOC message)
Oro Navigacija	the ANSP of Lithuania
OSI	Open Systems Interconnection
OST	OneSky Team, EUROCONTROL platform for working groups
PA	Provider Abort
PANSA	the ANSP of Poland
PCP	Pilot Common Project, precursor to CP common project
PER	Packed Encoding Rules
PDU	Protocol Data Unit
PIAC	Peak Instantaneous Aircraft Count
PMP	Project Management Plan
POA	Plain Old ACARS
QOS	Quality Of Service
RCP	Required Communication Performance
RF	Radio Frequency
ROMATSA	the ANSP of Romania
RMT	Rule Making Task
RMU	Radio/Remote Monitoring Unit
RTCA	Radio Technical Commission for Aeronautics
RCTP	Required Communication Technical Performance
RSTP	Required Surveillance Technical Performance
SDP	SESAR Deployment Programme
SESAR	Single European Sky  ATM Research
SDM	SESAR Deployment Manager
SIGMET	Significant Meteorological Information
SITA	Société Internationale des Télécommunications Aéronautiques (a CSP)
SJU	SESAR Joint Undertaking
Skyguide	the ANSP of Switzerland
SLA	Service Level Agreement
Slovenia Control	the ANSP of Slovenia
SQP	Signal Quality Parameters
STATFOR	Statistics and Forecast (EUROCONTROL service)
STC	Supplemental Type Certificate
SWP	Sub‐Work Package
UA	User Abort
TAF	Terminal Aerodrome Forecast
TBO	Trajectory Based Operations
TMA	Terminal Manoeuvring Area
TOC	Table Of Content or Top of Climb
TP4	Transport Protocol Class 4
TPDU	Transport Protocol Data Unit
TRM	Terminal
Tx / TX	Transmitter
UTC	Coordinated Universal Time
VDL  VHF Digital Link  VDL2 / VDLM2 /  VDL M2	VDL Mode 2
VDL4	VDL Mode 4
VGS	VDL Ground Station
VHF	Very High Frequency
VME	VDL Management Entity
WP	Depending on context: Work Package, Way Point or Working Paper