Users Manual

ALL
EFFECTIVITY
© Honeywell International Inc. Do not copy without express permission of Honeywell.
Page 5-48
22 Apr 2019
23-15-49
SYSTEM DESCRIPTION, INSTALLATION, AND MAINTENANCE MANUAL
ASPIRE-400
Table 5-13. SATCOM Operational Mode Command Word (OCA to SDU) (Continued)
Bit Range Field Name (Discrete Format) Valid Values/Ranges
12-11
Operational Mode Command 00 = Not Defined
01 = SDU1 Active & SDU2 Standby
10 = SDU2 Active & SDU1 Standby
11 = Not Defined
29-13 Reserved
0 = Not Defined
31-30
SSM 00 = Normal Operation
01 = No Computed Data
10 = Functional Test
11 = Failure Warning
32 Parity
Odd
NOTE: Although present, no action is taken on the SDI value.
(3) When all the following is true:
(a) ORTconfigured for Aircraft Directed Dual Safety SATCOM.
AND
(b) ARINC 429 MCDU 1 receive interface is enabled.
AND
(c) SSM of Label 272 is set to normal (NO) or functional test (FT) on ARINC 429
"Data from MCDU 1" interface for at least 3 consecutives labels.
(4) The ACD uses Label 272 received from ARINC 429 "Data from MCDU 1" interface.
(5) When all the following is true:
(a) ORTconfigured for Aircraft Directed Dual Safety SATCOM.
AND
(b) ARINC 429 MCDU 2 receive interface is enabled.
AND
(c) SSM of Label 272 is NOT set to either normal (NO) or functional test (FT) on
ARINC 429 "Data from MCDU 1" interface for at least 3 consecutives labels.
AND
(d) SSM of Label 272 is set to normal (NO) or functional test (FT) on ARINC 429
"Data from MCDU 2" interface for at least 3 consecutives labels.
(6) The ACD uses Label 272 received from ARINC 429 "Data from MCDU 2" interface.
(7) When all the following are true:
(a) ORTconfigured for Aircraft Directed Dual Safety SATCOM.
AND
DRAFT
3rd rvw Draft as of:
29 January, 2020