External System Interfaces; Application Modes; Cockpit Control And Display (Mcdu) (Task 23-15-49); Cockpit Display Types - Honeywell ASPIRE-400 System Description, Installation And Maintenance Manual

SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
(a)
(b)
(2) No other processors are active during this mode.
B.

External System Interfaces

(1) This section describes the external hardware interfaces provided by the SDU. The
presence of hardware interfaces in this section does not mean that these interfaces are
supported by software or that they are functional in every mode of operation.
C.

Application Modes

(1) The SDU enters Application Mode upon the successful completion of system
configuration and test.
(2) In Application Mode, the SDU provides SBB satellite services based on the ORT
configuration.
11.

Cockpit Control and Display (MCDU) (TASK 23-15-49)

A.

Cockpit Display Types

(1) The SDU equipment software supports concurrent displays connected via the MCDU
interfaces activated by ORT.
(2) The Cockpit Control and Display provides synchronized display fields across all displays
when the same menu page is selected, except for the scratchpad.
B.

Wire Voice Control and Display Functions

(1) This section describes the essential 4-wire voice control and display elements.
(2) The 4-Wire Voice Control and Display.
(a)
(b)
(c)
(d)
(e)
(f)
EFFECTIVITY
ALL
© Honeywell International Inc. Do not copy without express permission of Honeywell.
ASPIRE-400
Booting the ACD application code.
Providing a limited set of BITE tests that can only be performed by boot code.
Allows each display to operate independently from the others.
Permits placing, receiving and termination of safety voice calls on any ORT
enabled display.
Ensures independent control and status for each 4-wire interface.
Displays the priority of in-progress calls.
Indicates where detectable if the call termination was normal, abnormal or not
completed, in a manner that does not prevent new calls from being initiated or
accepted.
NOTE: If both status and pilot action cannot be accommodated, permitting
pilot action takes precedence.
Allows the user to modify a pre-set or default priority state and to cycle through
the following when placing an air-to-ground call using any ORT enabled display:
From
Emergency
High
To
High
Low
23-15-49
3rd rvw Draft as of:
29 January, 2020
Page 2-18
22 Apr 2019