Users Manual

ALL
EFFECTIVITY
© Honeywell International Inc. Do not copy without express permission of Honeywell.
Page 6-13
22 Apr 2019
23-15-49
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
ASPIRE-400
2 Ethernet #2
3 Ethernet #12.
(c) Disable Ethernet #5
(d) Command the APP to disable the CEPT-E1 external interface:
NOTE: Use of Ethernet #5 port is a future feature, but has been left here to
indicate how it is handled in this instance.
B. Commanded Self-Test
(1) Commanded self-test performs invasive tests on the SDU and RF LRUs, similarly to the
tests performed on start-up. It can be invoked either via the CFDS or the Web GUI.
(2) Upon entry into Commanded Self-Test the SDU automatically on each active channel:
(a) Terminates all data contexts.
(b) Terminates all circuit switch voice connections.
(c) Commands CC into Inert Power On Mode.
(d) Prevents activation of data contexts.
(e) Prevents activation of voice connections.
NOTE: This cleanly disconnects the channel from the ground network and
then prevents it from transmitting and receiving protocol data over the
air. This is safe for intrusive Maintenance Mode activities.
(3) The SDU permits commanded self-test when the following preconditions are satisfied:
(a) Operational Air/Ground status indicates the aircraft is on ground AND;
1 When enabled by ORT setting, Label 050 bits 17-14 are set to 0100b or
0001b
OR
2 The Data Loader Link A discrete (MP08E), is set to 'ground'.
(4) The SDU invokes commanded self-test within 12 s if:
(a) A self-test command has been received, and
(b) The commanded self-test preconditions are satisfied, and
(c) The SDU is not currently in self-test otherwise:
(d) Inhibits commanded self-test, and
(e) Sets CFDS Label 350 bit 28 to 1.
(5) During commanded self-test, the SDU:
(a) Logs-off
(b) De-asserts the Dual System Select (DSS) discrete
(c) Requests a commanded self-test of RF SATCOM LRUs'
(d) Completes its own self-test, and
DRAFT
3rd rvw Draft as of:
29 January, 2020