Users Manual

ALL
EFFECTIVITY
© Honeywell International Inc. Do not copy without express permission of Honeywell.
Page 6-20
22 Apr 2019
23-15-49
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
ASPIRE-400
(a) Power Cycle.
(b) External Reset Discrete asserted for greater than 0.5 seconds.
(c) SW triggered mode dependent (data load programming NVM variable set,
restricted test mode entry).
(13) The SDU records a POST Fault SDU startup due to fault conditions including:
(a) SW triggered BITE recovery,
(b) Watchdog restart.
L. SATCOM POST Monitoring
(1) The SDU records SATCOM POST Operational events for:
(a) Configuration reports from:
1 The antenna function
2 The pa function.
(2) The SDU records SATCOM POST faults if external SATCOM LRUs reports are
inconsistent with ORTsettings including the antenna reported type and then enter RF
Safe mode.
(3) The SDU records SATCOM POST faults and events related to the Automatic Cable
calibration if it is ORTselected.
M. Continuous Fault and Event Monitoring
(1) Continuous monitoring includes monitoring that occurs as a regular interval, as well as
"mode-dependent" monitoring that occurs only when a specific mode or function occurs.
N. SATCOM System Monitoring
(1) When configured for Dual Safety SATCOM, the SDU records faults related to:
(a) Dual SATCOM Configuration Conflicts, including:
1 Both SDUs have same SDU number
2 Preferred SDU differs
3 "SATCOM Select Mode" differs.
NOTE: These faults will be detected after both SDUs have
completed start-up.
(b) When configured for Dual Safety SATCOM, the SDU monitors and records
operational events related to Dual SATCOM operation including:
1 SDU Status
2 SDU DSS and DSD Status
3 Companion SDU Status
4 Companion SDU DSS and DSD Status.
5 SDU Active/Standby transitions AND;
6 If ORT configured for Aircraft Directed Dual Safety SATCOM include the
following additional information:
a SATCOM Operational Mode Command Word - Label 272
DRAFT
3rd rvw Draft as of:
29 January, 2020