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 94 of 173
6.3 SYSTEM MONITOR
System monitor pages show read-only details about the configured discretes, VHF radio, and
COMM status
Label
Section
Description
MONITOR 1/6
6.3.1
VHF Radio status
MONITOR 2/6
6.3.2
OOOI, annunciators, alerts, COMM and MSG status
MONITOR 3/6
6.3.3
A429 TX Status
MONITOR 4/6, 5/6
0
TX/RX Discretes
MONITOR 6/6
6.3.5
ADS Contracts
6.3.1 MONITOR (1/6) – COMM Status and Frequency
MONITOR 1/6 shows details about the VHF and SAT COMM status.
Figure 6-5 MONITOR 1/6 – COMM Status
LABEL
FUNCTION or DESCRIPTION
FREQ
VHF radio status and current frequency
STATION
Current VHF station (also current data authority (CDA))
SQP
Signal Quality Parameter (average) for CDA. See STATION TABLE
COMM STATUS
Read-only status for both VHF and SATCOM.
Active COMM is indicated with an asterisk.
VHF values: NO COMM, M2, MA, DISABLED, or NO RADIO with option ATN AVAIL if ATN
COMM is active.
SATCOM values: NO COMM, IN COMM, DISABLED, INOP, or <blank> if not configured.
VHF INHIBIT
Read-only state set by LSK L5.
Possible values: NOT INHIBITED or INHIBITED.
This field supports a configuration that shares the VHF COMM antenna with voice. If VHF
voice is in use, this discrete is set to INHIBITED, and any Envoy communications would be
over SATCOM until the switch relay is set to NOT INHIBITED.
MEDIA
Selection lists at LSK L5 and LSK R5 are available only if SAT media is configured.
Possible values: ENABLE or DISABLE If disabled, reset to default at system reboot, flight
initialization, or 10 minutes after OOOI state is set to IN.