User's Guide

User Guide for the Envoy Data Link
Document Number: UG-15000 Rev. A Page 49 of 173
3.5.3 WHEN CAN WE EXPECT
This page can be used to obtain a closure response to a FANS pending downlink request, such as
a clearance request.
Figure 3-18 WHEN CAN WE EXPECT Request Page
Access to this page requires an active FANS 1/A+ CPDLC session. This page generates a
downlink that displays on a VERIFY page for aircrew review prior to sending.
This page contains three mutually exclusive input fields, one of which is required:
• If an ALTITUDE is entered, ROUTE and SPEED are disabled
• If a ROUTE is entered, ALTITUDE and SPEED are disabled
• If a SPEED is entered, ALTITUDE and ROUTE are disabled
Table 3-12 WHEN CAN WE EXPECT Fields
LSK
Label
Description
L1
ALTITUDE
Required or disabled. Selection list:
• <blank> default
• HIGHER LEVEL
• LOWER LEVEL
L3
ROUTE
Required or disabled. Selection list:
• <blank> default
• BACK ON ROUTE
R1
SPEED
Required or disabled. Acceptable values:
• MACH: 0.78, .78, 78 formats are acceptable
• KTS after a numeric or 3 numeric characters without decimal are KTS
R6
VERIFY
When required data is entered, VERIFY prompt appears.
VERIFICATION PAGE has an optional free text field to add statement to justify the request.