Users Manual

ALL
EFFECTIVITY
© Honeywell International Inc. Do not copy without express permission of Honeywell.
Page 7-13
22 Apr 2019
23-15-49
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
ASPIRE-400
ELSE
(c) Set bit to 0.
Notes: 1.
1 No active ACARS MU/CMU is true when there is link inactivity for all
enabled CMUs or there is no declared active CMU.
2 A SATCOM failure prohibiting safety data link services is a fault that
prevents the SATCOM system’s ability to provide safety data and can be
present on any SATCOM LRU such as the SDU, the antenna and power
amplifier combination, SCM, as well as interface failure such as
navigation data, ICAO…
(7) When any of the following are true:
(a) There is no activity from enabled CMUs (label 270 SDU to ACARS MU/CMU
Status Word bit 12 and bit 19 set to 1 - Inactive)
(b) There is an equipment fault - SATCOM (label 270 SDU to ACARS MU/CMU
Status Word bit 20 set to 1 - Fault)
(c) The SATCOM is not logged on
(d) Neither ACARS nor ATN/OSI are available:
1 Label 271 SDU to ACARS MU/CMU Join/Leave Word, bit 27 set to 0
(Not Available)
2 Label 271 SDU to ACARS MU/CMU Join/Leave Word, bit 28 set to 0
(Not Available).
(8) the ACD sets the following bits to 1 (Not Available):
(a) Label 270 SDU to ACARS MU/CMU Status Word, bit 11 - Data Link to MU/CMU
Not Available
(b) Label 271 SDU to ACARS MU/CMU Join/Leave Word, bit 29 - Data Link to MU/
CMU Not Available.
(9) ELSE set the bits to 0 (Available):
(a) Label 270 SDU to ACARS MU/CMU Status Word, bit 11 - Data Link to MU/CMU
Not Available
(b) Label 271 SDU to ACARS MU/CMU Join/Leave Word, bit 29 - Data Link to MU/
CMU Not Available.
DRAFT
3rd rvw Draft as of:
29 January, 2020