Users Manual

ALL
EFFECTIVITY
© Honeywell International Inc. Do not copy without express permission of Honeywell.
Page 6-11
22 Apr 2019
23-15-49
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
ASPIRE-400
3. Maintenance Functions
A. Interactive Tests PIMBIT
(1) The Aspire 400 Class 6F Transceiver supports Passive Intermodulation Built-In Test
(PIMBIT) per Section 3.7 of the ARINC 781.
B. Interactive Tests RF Carrier Test
(1) The Aspire 400 Class 6F Transceiver provides the ability in a test/maintenance mode to
perform the GPS Intermodulation Test (when in a Dual Channel Install) including:
(a) Launching the RF Carrier Test
(b) Displaying RF Carrier Test antenna and frequency settings
(c) Aborting the RF Carrier Test.
(2) In the test/maintenance mode, the Aspire 400 Class 6F Transceiver provides:
(a) Means for an operator to control antenna beam pointing with beam steering
information (input: Azimuth, Elevation).
(b) Means to transmit any two simultaneous carrier frequencies in L-Band spectrum
(input: Carrier 1 frequency, Carrier 2 frequency).
(c) Means for a user to identify the antenna direction and carrier test frequencies
(provided via the WEB GUI interface).
(3) The Aspire 400 Class 6F Transceiver only allows initiation of the RF Carrier test when the
following conditions are met:
(a) The SDU is in the test/maintenance mode
(b) A launch RF Carrier test command has been received
(c) The aircraft is on the ground;
(d) The SDU is not currently in self-test or PIMBIT
(e) The SDU is receiving Valid navigation data
(f) No hardware failures exist in the system that affect the RF Carrier test operation.
(4) The Aspire 400 Class 6F Transceiver aborts the RF carrier test if either:
(a) An abort RF Carrier Test command has been received.
OR
(b) The aircraft is no longer on the ground.
4. Interrupt Request Lines
A. Interrupt Request Lines
(1) The ACD FPGA has a separate IRQ line and register for each of the following Trusted
zone functions:
(a) ARINC 429 RX/TX (Trusted)
(b) SCM - Security SmartCard.
B. The ACD FPGA has a separate IRQ line and register for each of the following functions:
(1) ARINC 429 RX/TX (non-Trusted)
DRAFT
3rd rvw Draft as of:
29 January, 2020