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 23 of 173
AOC/ACARS input fields accept ICAO and IATA formats:
2.3 Startup – Boot Sequence
The Envoy continuously monitors system health. Alerts, advisory messages, and uplink messages
trigger visual annunciators on the Envoy faceplate and aural and visual alerts in the cockpit.
At power-up, the system checks aircraft sensors and hosted devices via Power-on Built-In Tests
(PBIT) to ensure full system functionality. The annunciators (ATC, ACARS, FAIL) on left side of
display illuminate briefly while the system data is loading. During this time, the Loading…
animation is a visual indicator that the system is verifying the configuration data.
Figure 2-5 Envoy Annuniciators Illuminated
Allow 10 seconds for the PBITs to run.
2.3.1 Fault and Error Checking
A fault that is severe enough to affect the Envoy functional performance illuminates the FAIL
indicator on the faceplate and on the cockpit display. Faults for the active flight are available to
pilots in the FAULT LOG described in Section 6.2.
Facility ID
For certain AOC position reports, the 3-character IATA code is required, for other input fields, a
4-character ICAO field is required. See Appendix F for 3 and 4 character equivalents.
POS
(position)
The Envoy recognizes multiple formats for geographical position:
• Airport ID (ICAO, 4 alpha characters)
• Waypoint, 5 alpha, such as BALIX
• FIX (4 or 5 alphanumeric characters)
• NAVAID (3 to 5 numeric or 3 alpha followed by NB)
• LAT/LON (FANS only). 4 numeric followed by single alpha. Examples:
5275N = N 52 00/W 075 00
5020S = S 50 00/E 020 00
5020E = N 50 00/E 020 00
• LAT/LON (7 char: DDYDDDZ degrees: 53N054W)
• LAT/LON (11 char DDNNYDDDNNZ, degrees and minutes: 5305N05405W
Where:
DD
NN
Y
DDD
NN
Z
00-90
degrees
00-59
minutes
N (north) or S
(south)
0000180
degrees
00-59
minutes
E (east) or W
(west)
When the first DD reads 90 Degrees, the following NN must be zero minutes. When DDD reads
180 degrees, the following NN must be zero minutes.