User's Guide

User Guide for the Envoy Data Link
Document Number: UG-15000 Rev. A Page 65 of 173
5.1 ACARS Configurations
The Envoy supports IATA and ICAO standard formats for ARINC messages, as summarized in
Appendix E
The standard ACARS menu structure, page layout, and defaults described in this section may
have been customized. Check the with the airline company for a given aircraft configuration.
Configurable ACARS settings include:
• Page title
• Message/report labels in the ACARS MSG LOG
• Event triggers and intervals for automated and preformatted messages
• Font colors (in standard white, yellow, red, magenta, cyan or any custom color) and font size (small
or large) for display text (labels, system-supplied data, input values, action labels,
• Prompt character (carat (< or >, default) or asterisk (*)
• Time display (HH:MM) centered between LSK L6 and R6 for all ACARS pages
• Selection list values (up to 16 per selection list)
• Default values for mandatory and optional input fields
ACARS does not require a logon session.
5.2 Receiving an ACARS Message
When an ACARS uplink is received, the ACARS annunciator illuminates.
Pressing the ACARS function key when the annunciator is lit displays the latest ACARS message,
or, if multiple open ACARS messages exist, displays the ACARS MSG LOG.
The aircrew can modify or terminate interval reports by editing the detailed message on the
ACARS MSG REVIEW page.
5.3 Sending an ACARS Message
In ACARS, required flight data (departure arrival airport, flight ID) need only be entered once and
the Envoy maintains that data for the duration of the current flight. The aircrew sets flight
information on the Flight Init page, where the data is then prepopulated in ACARS messages and
reports.
Input fields on ACARS pages may be autopopulated from bus feeds. If bus-fed data is unavailable,
the aircrew can manually enter a value; however, manually input data will be overwritten by the
bus feed.
Sent/accepted/logged messages can be deleted from the ACARS message log.
5.4 ACARS Menu
The Envoy standard ACARS menu and message set includes AOC and ATC requests and reports
in a menu tree structure that supports all phases of flight.