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 101 of 173
6.4.2 UTC SOURCE AND STATUS
Identify source of current date and time, adjust time, or reset the Envoy time and date.
The current time (Zulu) and date (Zulu) is selected by the Envoy IO subsystem from multiple
sources. This page identifies the source.
Figure 6-15 UTC SOURCE AND STATUS
Perform the following actions from the UTC SOURCE AND STATUS page
R3
+1 SECOND
Change current UTC time by 1 second per press.
R4
-1 SECOND
R5
UTC REQUEST
Press to obtain UTC time from a new time source
The read-only values on this page show:
Label
Description
DATE
DD-MMM-YYYY format of today’s date in Envoy Flash memory
TIME
HH:MM:SS in Zulu format of time in Envoy Flash memory
TIME SRC
System controlled source of current UTC time and date
6.4.3 SELF TEST AND STATUS
Test the functionality of annunciators, discretes, and display. Tests that have been run during the
current logon session can be printed.
LSK
LABEL
FUNCTION or DESCRIPTION