Users Manual

ALL
EFFECTIVITY
© Honeywell International Inc. Do not copy without express permission of Honeywell.
Page 5-6
22 Apr 2019
23-15-49
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
ASPIRE-400
(3) At application startup the SDU confirms the validity and synchronization between SCM
and SDU Secure ORTs as outlined below:
(a) SCM/SDU secure ORT files are valid and identical (Normal Operation)
(b) SCM/SDU Secure ORT files are valid/different which overwrites SDU ORT with
SCM -> Normal Operation, do not raise any failures.
(c) SCM secure ORT is Valid while SDU secure ORT is invalid:
1 Overwrite SDU ORT with SCM values:
a Normal Operation if repaired.
b Raise failure.
(d) Only local SDU copy is valid, use SDU copy, raise failure, Continue Operation.
(e) Both ORT copies are invalid, raise failure.
(4) At application startup the SDU confirms the validity and synchronization between SCM
and SDU User ORTs as outlined below:
(a) SCM/SDU ORT files are valid and identical (Normal Operation)
(b) SCM/SDU ORT files are valid, but the local SDU ORT has been user modified,
do not raise any failures. Normal Operation using local SDU values.
(c) SCM/SDU ORT files are valid, but the files are different and the difference was
not caused by user modification of the local SDU ORT, do not raise any failures.
Overwrite SDU ORT with SCM.
(d) Only SCM User ORT is valid while SDU User ORT is invalid, Overwrite SDU
ORT with SCM. Normal Operation.
(e) Only local SDU ORT valid, raise failure. Normal Operation.
(f) SDU/SCM ORT both invalid, raise failure.
NOTE: The local SDU copy can be modified by the user to reflect his
preferences. The SCM copy always remains as data loaded, to allow
reverting to its settings.
(5) The SDU validates its ORTcontent by checking:
(a) parameters within valid range
(b) cross parameter consistency
(c) completeness (all necessary parameters present).
(6) The ACD considers a license active if:
(a) The last stored Network Date is present is before the end date.
(b) If no stored Network Date is present, the aircraft provided date is prior to the end
date.
NOTE: Permanent licenses will have an infinite end date.
(7) The SDU is not required to adopt a Secure ORT that changes after application startup.
(8) During a Rapid-Switching-On, the ACD bypasses ORTcontent and license validation if
the validation passed since the last "Normal Switching-On".
(9) During Normal-Switching-On or Commanded Self-Test, the SDU attempts the repair of
corrupted software images that are on any of the following:
DRAFT
3rd rvw Draft as of:
29 January, 2020