User's Guide
Table Of Contents
- 1 Introduction
- 1.1 Audience
- 1.2 Overview
- 1.3 Envoy CMU Features
- 1.4 Configuration Options for Envoy
- 2 Operation of Envoy
- 3 CPDLC Operations
- 3.1 Log On
- 3.2 Logoff
- 3.3 Lost Connection
- 3.4 Typical Message Composition
- 3.5 ATC Menu
- 3.5.1 ATC Request Menu – FANS 1/A+ and ATN B1 CPDLC Common
- 3.5.2 ATC REPORT Menu
- 3.5.3 WHEN CAN WE EXPECT
- 3.5.4 POS REPORT Message – FANS 1/A+
- 3.5.5 EMERGENCY (MAYDAY) Message – FANS 1/A+
- 3.5.6 ATC MSG LOG
- 3.5.7 CLEARANCE REQUESTS – FANS 1/A+
- 3.5.8 FREE TEXT 1/2
- 3.5.9 ATC VOICE CONTACT Message – FANS 1/A+
- 3.5.10 Cancel EMERGENCY, Cancel ADS
- 3.5.11 Flight Plan Transactions and Monitoring
- 4 Automatic Dependent Surveillance (ADS)
- 5 ACARS Operations
- 6 MAINTENANCE Menu
- Appendix A Acronyms
- Appendix B AFN Messages
- Appendix C Supported CPDLC Messages
- Appendix D ADS-C Tags
- Appendix E ACARS Message Labels
- Appendix F ATSU Call Signs (ICAO, IATA)
- Appendix G Fault Management
User Guide for the Envoy Data Link
Document Number: UG-15000 Rev. A Page 85 of 173
The message log or individual message can be printed on a cockpit printer, if installed.
When a flight has completed, the ACARS MSG LOG is cleared ten minutes after the aircraft has
been in the OOOI IN state.
ACARS MSG REVIEW 1/2
ACARS MSG REVIEW pages provide a static view of a single uplink or downlink entry from the
ACARS MSG LOG. An ACARS message can contain up to 30 pages of text.
Titles of free text messages include a timestamp and one of the following labels:
• ACARS UPLINK
• ACARS DNLINK
The example below shows Departure Clearance, which, like the Oceanic Clearance, requires a
READBACK confirmation (at LSK L5) on the last page of the message.
Figure 5-21 ACARS MSG REVIEW 1/2 and 2/2
The detailed message can be opened and then printed from the ACARS MSG LOG page.
The title on the ACARS MSG REVIEW pages includes the timestamp, the identifier (uplink or
downlink), the field labels and content. If additional pages are required to display the free text, the
second and subsequent pages include the title line, along with a subtitle line to identify the status.
If an ACARS message requires a READ or READBACK status (to indicate the aircrew scanned all
pages of the message), then these actions always appear at LSK L5 on the last page of the MSG
REVIEW.
PRINT always displays at LSK R6 on the last page of a closed message.
Table 5-16 ACARS MSG REVIEW Fields
L1
FACILITY
ATC uplink message type:
Facility ID
•
Oceanic Clearance
• Flight Systems Message
ATCC ID/ICAO Designator
• D-ATIS Report
AIRPORT ID
• Terminal Weather Information
ICAO Airport ID
• Departure Clearance
Departure Airport
• Pushback Clearance
• Expected Taxi Clearance
ICAO Departure Airport
L2
24 Char Max Message ID
Header for detailed text of message that follows.
L5
READ/READBACK
Action key to send notification to ATC that message has been received
L6
RETURN
Go to ACARS MSG LOG
LSK
Label
Description