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 43 of 173
For usage, see Section 5.4.1.3 D-ATIS Request
DEPARTURE CLR REQ
This clearance request is available in an active FANS CPDLC session when ACARS is a
configured feature. This page constructs a formatted downlink that displays on a VERIFY page for
aircrew review and approval prior to sending the downlink.
For usage, see ACARS Section 5.4.1.4 Departure Clearance Request
OCEANIC CLR REQ
This ACARS clearance request is available in an active CPDLC session when ACARS is a
configured feature. This page constructs a formatted downlink that displays on a VERIFY page for
aircrew review and approval prior to sending the downlink.
See ACARS Section 5.4.1.5 Oceanic Clearance Request
3.5.2 ATC REPORT Menu
The Envoy provides an interface that enables aircrew to view, modify, and even disarm (dismiss)
event driven reports. The ATC REPORT menu is a queue of active reports that are scheduled to
be automatically or manually sent when triggered by a specific event. are queued to be downlinked
based on a single- or multi-element uplink instruction that contains “REPORT”:
• REPORT BACK ON ROUTE
• REPORT LEAVING [level]
• REPORT LEVEL [level]
• REPORT PASSING [position]
• REPORT PRESENT LEVEL
• REPORT REACHING BLOCK [level] TO [level]
• REPORT REMAINING FUEL AND SOULS ON BOARD
A REPORT uplink can be received concatenated with another ATSU instruction, such as:
• CONFIRM ASSIGNED ROUTE REPORT PASSING SAGOP
The response for such reports is constructed as a downlink response that the aircrew can set to
ARMED (automatic) or MAN (manual).The Envoy manages ARMED reports, automatically sending
the downlink response whenever the trigger criteria are met.
When responding to an uplink instruction that has a REPORT, the aircrew can designate whether
the report is armed or manual. The aircrew can disarm (dismiss) or otherwise edit a queued report
from the report detail page or within the detail view of the armed (queued) report:
The content of the ATC REPORT menu depends on whether the active CPDLC session is FANS
or ATN:
• The ATN REPORT menu has a single selection for creating a downlink report, Altitude, further
described in ATC REPORT ALT.
• The FANS REPORT menu is a list of queued automated and/or manual reports that have been
armed in response to an uplink message, configured event, and/or triggers. For any uplink
instruction or request that expects a report, the downlink response includes a prompt for the aircrew
to schedule the report.