User's Manual

UniLink UL-800/801 FANS
SCN 30.X
Operator’s Manual
23-20-06.02 131
December 2011
GLOSSARY
Acronym/Abbreviation/
Term
Description
ACARS
Aircraft Communication Addressing and
Reporting System
ACK
Acknowledgement
ADC
Air Data Computer
ADS-C
Automatic Dependent Surveillance -
Contract
AFN
ATS Facilities Notification
ALT
Altitude
AOA
ACARS Over Aviation VHF Link Control
(AVLC)
AOC
Aeronautical (airline) Operational Control
ARINC
Aeronautical Radio, Inc. (data interface
format standard)
ATC
Air Traffic Control
ATIS
Automatic Terminal Information Service
(see D-ATIS)
ATM
Air Traffic Management
ATN
Aeronautical Telecommunications
Network
ATS
Air Traffic Services
ATSU
Air Traffic Service Unit
AVLC
Aviation VHF Link Control
CDA
Current Data Authority
CDB
Customer Database
CDU
Control Display Unit
Circuit Mode Data
A full duplex bi-directional communication
link in which data is transmitted and
received simultaneously. A hand shake
must be established prior to data being
exchanged. Supported by a UniLink RS-