Users Manual

ALL
EFFECTIVITY
© Honeywell International Inc. Do not copy without express permission of Honeywell.
Page 6-16
22 Apr 2019
23-15-49
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
ASPIRE-400
(a) Loops back associated 4-wire mic audio input to the headset speaker
(b) Asserts call light discrete associated with 4-wire interface under test
(c) Asserts call chime discrete
(d) Sets unanswered call bits in label 270.
F. RF Carrier Test
(1) Creating carrier frequencies of user defined power, frequency and antenna pointing is
provided for development and integration testing. It is considered an advanced
maintenance activity, and requires appropriate password to access.
(2) The test allows for the generation of either:
(a) A single carrier test tone
(b) Two carriers (only applicable to configurations supporting dual channel
operation).
(3) The SDU only allows initiation of the RF Carrier test when the following conditions are
met:
(a) A launch RF Carrier test command has been received
(b) The aircraft is on the ground;
(c) The SDU is not currently in self-test or PIMBIT
(d) The SDU is receiving Valid navigation data;
(e) No hardware failures exist in the system that affect the RF Carrier test operation.
(4) Upon entry into RF Carrier 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.
(5) Based on valid Web GUI entry, the interactive RF Carrier Test either:
(a) Generates one RF carrier of requested power and L-Band frequency
(b) Generates two RF carriers only if the SDU is ORT configured for dual channel
operationof requested L-Band frequencies at preset power levels based on ORT
indicated antenna type.
(6) And providse the carrier test frequencies for display on the Web GUI.
(7) Based on valid Web GUI entry, the interactive RF Carrier Test:
(a) Commands the antenna to a directed azimuth and elevation
(b) Provides the current antenna pointing information for display on the Web GUI.
DRAFT
3rd rvw Draft as of:
29 January, 2020