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Page 2-19
22 Apr 2019
23-15-49
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
ASPIRE-400
Low Public
Public Emergency
C. Satellite Logon Control and Display Functions
(1) The 4-Wire Voice Control and Display provides:
(a) The satellite registration/logon status and control including selection of:
(b) Log off
(c) Auto logon
(d) Constrained logon
(e) Presence of a system failure that makes the SATCOM inoperable.
(2) When the ORT configuration is set for cabin voice calls, the ACD enables/disables cabin
voice when a Cabin Calls indication is received from the call-display-and control protocol
or the inhibit call discrete is asserted.
D. Dual SATCOM Control and Display Functions
(1) When Configured for Dual Safety SATCOM
(a) The SDU displays the current "SATCOM Select Mode" selected for operation via
the Cockpit Control and Display.
NOTE: SATCOM Select Modes are: SDU1, SDU2 or Auto.
(b) The SDU displays if it is currently the Active or Standby SATCOM via the Cockpit
Control and Display.
(c) The SDU allows user to set "SATCOM Select Mode" via the Cockpit Control and
Display.
E. MCDU Type Cockpit Display Functions
(1) The MCDU type cockpit display pages are rendered by the SDU.
(2) The MCDU type 4-Wire Voice Control and Display permits:
(a) Entry of Air-to-Ground phone numbers via direct entry and via a phonebook
facility.
(b) Placing and receiving of 4-wire calls including manual dial;
(c) Direct or Indirect access to other pilot SATCOM display pages.
(3) The MCDU type 4-Wire Voice Control and Display
(a) Displays the Caller identification of incoming calls on schemas that permit it.
(b) Displays the 4-wire Voice Control and Display default priority for non-directory
entered numbers is level 2 "High".
(c) Displays is not required to clear a loaded entry on a 4-wire interface.
NOTE: Incorrect entries may be fixed by loading a correct one over top of an
existing one.
12. Dual SATCOM Configuration
A. Master Control
DRAFT
3rd rvw Draft as of:
29 January, 2020