1. GLOBALink/VHF Digital Link Mode 2
ICAO Seminar on Implementation of Data Link and SATCOM Communications
Bangkok, Thailand
17-19 November 2003
Vic Nagowski of ARINC Industry Activities presenter
ARINC Industry Activities is responsible for the development of avionics standards for the aeronautical community
Material being presented provided by the ARINC Aviation and Air Traffic Division who is responsible for all ARINC air/ground voice and data link services
Copyright © 2003 ARINC Incorporated, 2551 Riva Road, Annapolis, Maryland, All rights reserved. No part of this publication may be reproduced without written permission of the publisher.

2. GLOBALink Services Overview
Airline
Host System
Satcom
ARINC Ground Network
(AviNet®)
Aviation Communication
Services
HFDL
FAA/CAA
Tower Systems
ARINC Central
Processing
System (CPS)
High level picture of the services offered by ARINC under the GLOBALink name
This presentation will be providing the status of the ARINC VHF Digital Link Mode 2 (VDLM2) services
ACARS/AOA
VHF
Air Traffic Service Provider
ATN
Air/Ground Router

3. ARINC Status of VDLM2 Services
Two VDLM2 Services Offered
AOA: ACARS Over AVLC (Aviation VHF Link Control)
Operational November 2000
ATN: Aeronautical Telecommunication Network
Supports Controller Pilot Data Link Communications (CPDLC)
Operational September 2002
ARINC Providing VDLM2 Products/Service Globally
North America
AOA
ATN-FAA CPDLC Build 1 Program
Europe
ATN-EUROCONTROL Link 2000+
Asia
AOA -AVICOM (Japan)
2 VDLM2 services are being offered
AOA supporting legacy ACARS applications
ATN supporting CPDLC
SAS support in Europe

4. ACARS Technology Limitations
ACARS has 2.4 kbps air-to-ground data link
Current traffic reaching capacity of available frequencies at busiest airports
Limits data link speed and volume
Data link growth continues regardless of economy
Cannot continue to meet airlines demand
New applications are data intensive
New aircraft are data intensive
ACARS
Lack of frequencies to support ACARS
Performance limited due to a/g data link speed and protocol
Airlines/CAAs continuing to use data link for more applications
New aircraft are more data intensive

5. VDLM2 VDLM2 has 31.5 kbps air-to-ground data link
>10X the throughput and speed of ACARS
Enables data intensive applications
Complies with ICAO SARPS for worldwide harmonization
Eliminates radio frequency congestion
Designed to meet demanding requirements of Air Traffic Services (ATS) communications
Scalable system
Expandable with demand
Easily integrated with existing data link systems
10X due to higher air/ground speed and improved protocol
Bit-oriented protocol vs. character-oriented (ACARS)
Designed to meet more stringent ATC requirements (latency and availability) which results in better AOC performance
Modular system growth to support future requirements

6. ARINC VDLM2 Coverage for CPDLC Build 1
AOA & ATN Service
13 Stations; fully redundant system; 24/7 ops
CPDLC – Controller-Pilot Data Link Communications
13 ground stations operational today
Operational since September 2002
Unprecedented operational availability being achieved
Integrated into ARINC’s GLOBALink Service

7. Airlines / Operators Will Benefit from ARINC’s Operational VDLM2/ATN Service
American Airlines
Continental Airlines
Delta Air Lines
Federal Express
US Air Force
AAL – 26 aircraft
CAL – 4 ac (certified but not operational)
DAL – 4 ac planned
FEX – 8 ac planned
USAF - 1 ac

8. ARINC’s VDLM2/ATN Service Today
ARINC won EUROCONTROL’s competition to be their LINK ATN/CPDLC Service Provider
Where:
Maastricht UAC
When:
Fall 2003 through 2007
LINK 2000+
ARINC won Eurocontrol competition for LINK 2000+
Maastricht Upper Airspace Center
ARINC system deployed in October 2003, actual operation is pending certification flights
AAL scheduling cert flights
SAS operational scheduled for February 2004
13 ground stations
- 9 ground stations support LINK 2000+
- 3 ground stations support Airbus certification
Eurocontrol has plans to mandate VDLM2/ATN in 2009 for forward fit aircraft and allow 5 additional years for retrofit aircraft

9. ARINC VDLM2 in Europe 2003 Coverage for: Link 2000+ CPDLC
AOA & ATN Service
ATN coverage
AOA current coverage and planned coverage (5 year plan)
Planned Coverage for:
AOA Service

10. Airlines/Operators to Benefit from ARINC’s Operational VDLM2/ATN Service
SAS
Lufthansa
ATI
American Airlines
Others expected to announce their participation shortly
Eurocontrol offering incentives to airlines to join the CPDLC program
- Assistance with avionics procurement
- Reduced over flight fees

11. ARINC Provides Turnkey AOA / VDLM2 System to AVICOM
Narita (NRT) - 1
Haneda (HND) - 3
Kansai (KIX) - 2
Kagoshima (KOJ) - 8
Fukuoka (FUK) - 9
Nigata (KIJ) - 7
Chitose (CTS) - 4
Kushiro (KUH) - 5
Sendai (SDJ) - 6
Naha/Okinawa (OKA) - 10
AVICOM service operational Sept 2003
AVICOM Japan has procured VDLM2 AOA system from ARINC
2 ground stations operational
Purchased 10 ground stations in initial procurement
More details on this system to be provided later by Matsuzaki san of AVICOM

12. VDLM2 Available and Planned Coverage
148 ground stations operational to date
Expect 160 by end of 2003

13. Performance of VDLM2 AOA ATN 50 aircraft regularly using service
Expect 100 aircraft by end of year
147 VDLM2 stations operational
160+ VDLM2 stations planned by EOY 2003
>100,000 messages monthly
>99% Uplink success rate
Response time (round trip)
Average 1.35 seconds
ATN
30+ Aircraft using service
13 stations operational
~10,000 CPDLC messages monthly
ARINC service availability
99.999% - Domestic
99.86% - Caribbean
Here are the some of the performance parameters
Performance parameters are better than ACARS performance
Latency measurements better than expected and meeting ATC requirements
Southwest airlines is starting to equip with VDLM2 avionics and should have entire fleet equipped by EOY 2004
- ARINC estimates 500 aircraft total using system by EOY 2004

14. AOA VHF Traffic AOA VHF Traffic
# COMMUNICATING AIRCRAFT
AOA VHF Traffic
Number of Aircraft
This graph provides the AOA traffic uplink and downlink data by month
Downlinks are normally 2/3 of the traffic while uplink messages are longer in length
It also provides the number of aircraft using the system per month

15. VDLM 2 Summary VDLM2 AOA and ATN networks are operational
VDLM2 avionics for AOA and ATN are available
ATN service is operational for CPDLC in Miami ARTCC over ARINC VDLM2
ATN European service for CPDLC operational by EOY 2003
VDLM2 is achieving promised performance
ARINC ATN router product available to support air/ground and ground/ground implementations
CNS/ATM Regional Implementation Seminar sponsored by Aerothai/ASA/ARINC in March 2004

16. Summary (cont.) For questions or additional information
please contact:
Dan Pendergast
Director, GLOBALink Services
For addition information on the ARINC VDLM2 system please contact