User's Manual

UL-801 Installation Manual
Page A1-1
23-20-06 15 December 2011
Appendix 1
This appendix contains industry-standard acronyms, abbreviations, and terms used in the UniLink
Installation manual.
1. Acronyms, Abbreviations, and Terms
Acronym/Abbreviation/Term Description
ACARS Aircraft Communications Addressing and Reporting
System
ACK Acknowledgment
ADC Air Data Computer
ADS-C Automatic Dependent Surveillance - Contract
AFN ATS Facilities Notification
ALT Altitude
ALTRV Altitude Reservation
AOA ACARS Over Aviation VHF Link Control (AVLC)
AOC Aeronautical (Airline) Operational Control
ARINC Aeronautical Radio, Incorporated (Data Interface Format
Standard
ATC Air Traffic Control
ATIS Automatic Terminal Information System (see D-ATIS)
ATM Air Traffic Management
ATN Aeronautical Telecommunications Network
ATS Air Traffic Services
AVLC Aviation VHF Link Control
BCS Block Check Sequence
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-232 port configured for TEL.
CLX Clearance
CM Configuration Module
CMU Communication Management Unit
CNS Communication Navigation Surveillance
COMM Communication (also referred to as COM)
CPDLC Controller-Pilot Datalink Communications