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 114 of 173
Section
ID
CPDLC DM/Example
Message Intent
PANS/GOLD
67(10) 67(10)
‘WE CANNOT ACCEPT
[speed]’
Indication that the specified speed
cannot be accepted.
67(11) 67(11)
‘[traffic identification] SIGHTED
AND PASSED’
Report indicating visual sighting of
traffic.
67(12) 67(12)
‘[traffic identification] NOT
SIGHTED’
Report indicating no visual sighting
of traffic.
67(13) 67(13) ‘TRAFFIC SIGHTED’
Report indicating visual sighting of
traffic.
3.5.9 67(14)
‘RELAY FROM [callSign]
[response params]’
Notification from the intermediary
aircraft of the specified response
from the specified aircraft.
67(15) 67(15)
‘WE CANNOT ACCEPT
[distanceoffset][direction]’
Notification that aircraft is unable to
accept the specified offset.
3.5.5 67(14) ‘CAUSE: [cause]‘
Prepended to an EMERGENCY
downlink. Where [cause] is one of:
ENGINE, CAB PRESS, FIRE, or
HIJACK
67(18) 68 ‘REVISED ETA [time]’
Supplemental or free text response
to append to downlink message(s)
68
68
[freeText]
2.3.1 69 (1)
‘THIS CONCATENATION IS
NOT SUPPORTED BY THIS
AIRCRAFT’
Error. Combination of multi-
element messages used UM or DM
with same number more than once.
2.3.1
70
‘UPLINK DELAYED IN
NETWORK AND REJECTED -
RESEND OR CONTACT BY
VOICE’
Error (exceeded max. uplink delay)
71
‘UPLINK TIME STAMP
INDICATES FUTURE TIME’
Error.
69 (1)
72
‘CLEAR OF WEATHER’
70 73
REQUEST HEADING
[degrees]
REQUEST HEADING 150T
Request a clearance to adopt the
specified heading
4.6-23 Rte Mod
Req
3.5.2.4 74
REACHING [level] -REACHING
25000FT
Notification that the aircraft has
reached the specified level.
4.6-24 Reports
3.1 75 [versionnumber]
Response to a CONNECT
CONFIRM uplink
4.6-27 System
Management
Messages
3.5.2.4
76
REACHING BLOCK [level] TO
[level]
REACHING BLOCK 23000FT
TO 25000FT
Notification that the aircraft has
reached a level within the specified
vertical range.
4.6-24 Reports
77
ASSIGNED BLOCK [level] TO
[level]
ASSIGNED BLOCK 23000FT
TO 25000FT
Read-back of the assigned vertical
range.
78 78
AT [time] [distance] [tofrom]
[position]
AT 1241 200KM TO XYZ
Notification that at the specified
time, the aircrafts position was as
specified.
3.5.1.4 79
ATIS [atisCode]
ATIS G
Single letter for latest ATIS report
received.
3.5.5 80
DEVIATING
[distanceOffset][direction] OF
ROUTE
Urgency: High Report indicating
deviating specified distance or
degrees in specified direction from
cleared route.