Rf Safe Mode; Hpa Modes Of Operations; General - Honeywell ASPIRE-400 System Description, Installation And Maintenance Manual

SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
B.

RF Safe Mode

(1) In RF Safe Mode, the RF output of the system is disabled because a significant system
configuration problem has been detected. Safe Mode does permit other interactions with
the equipment to allow the condition (e.g. loading a missing ORT) to be remedied. Even
once the problem has been remedied, normal operation can only be achieved by a reset
where the conditions are no longer present.
(2) The SDU enters RF Safe Mode for any of the following conditions:
(a)
(b)
(c)
(d)
(3) Upon entry into RF Safe Mode, the SDU keeps the RF carrier off.
(4) When in Safe Mode, the SDU indicates its inability to provide data and voice services on
the following interfaces which are able to be activated:
(a)
(b)
(5) In RF Safe Mode, the SDU reports status to the following maintenance interfaces:
(a)
(b)
(6) In RF Safe Mode, the SDU retains the capability to enter into Data Load Mode and
perform maintenance functions necessary to determine the reason for entry into RF Safe
Mode.
3.

HPA Modes of Operations

A.

General

(1) The HPA operates as a means of transmitting RF signal between the SDU and antenna.
(2) The HPA supports the following modes:
(a)
(b)
EFFECTIVITY
ALL
© Honeywell International Inc. Do not copy without express permission of Honeywell.
ASPIRE-400
SDU configuration missing including missing license keys for any selected ORT
features that require a license
SDU configuration incomplete
SDU configuration discrepancy or corruption
SATCOM LRU configuration discrepancy (antenna or PA type mismatch).
Pilot control and display
CMU.
Web GUI
CFDS.
L-band Tx RF Power Amplification
Processor RF Power Management and Diagnostics.
23-15-49
3rd rvw Draft as of:
29 January, 2020
Page 2-3
22 Apr 2019