User's Guide

User Guide for the Envoy Data Link
Document Number: UG-15000 Rev. A Page 172 of 173
Appendix G Fault Management
In the table below:
• Sev (Severity) is mitigated by availability of an alternative media source.
• For messages with 2 severity values, the first is for a single COMM source configuration, second if
additional media source(s) is available; for example, if VDL and SATCOM are available and VDL
fails, then the Envoy can communicate over SATCOM.
• For items marked with an * (asterisk), if a configuration is loaded, severity is reduced to 2.
• I/R (Isolation/Recovery Cycles) represents the built-in attempts to isolate the fault and recover
operation. If no recovery is possible without system interaction, the fault has 0 recovery cycles.
Additional instances of related lower priority faults are not added to the FAULT LOG until recovery
or system restart resets the item causing the fault. For more information, see Section 6.2, FAULT
LOG.
ID
Name
Description
Sev
Type
I/R
100
SAM Application Software
Missing or Invalid Application software
1
Internal
1/0
101
DUKB Application Missing
Missing or Invalid Application software
1
Internal
1/0
102
VDLA Application Missing
Missing or Invalid Application software
1
Internal
1/0
103
VDL2 Application Missing
Missing or Invalid Application software
1
Internal
1/0
104
SAM Application CRC Mismatch
CRC calculation
1
Internal
1/0
105
DUKB Application CRC Mismatch
CRC calculation
1
Internal
1/0
106
VDLA Application CRC Mismatch
CRC calculation
1
Internal
1/0
107
VDL2 Application CRC Mismatch
CRC calculation
1
Internal
1/0
108
PM AC Configuration CRC Mismatch
Aircraft Config CRC calculation error in
Personality Module
1
*
Internal
1/0
109
Application Incompatible
SAM and DUKB version Incompatible
2
Internal
1/0
110
Missing PM
Missing Personality Module
1
*
External
1/0
111
SAM to DUKB Interboard
Communication
No interboard communications
1
Internal
5/5
112
Mode Options PDI CRC Failure
Invalid CRC check for MODE Options
1
Internal
1/0
131
FMC 619 Missing
ARINC 619 connection to FMC INOP
2
External
30/30
132
FMC EFIS Missing
FMC EFIS bus connection INOP
2
External
30/30
133
SATCOM 741 Missing
SATCOM 741 connection INOP
2
External
30/30
134
SATCOM 739 Missing
SATCOM 739 connection INOP
2
External
30/30
135
ARINC 619 connection missing
ARINC 619 connection INOP
2
External
30/30
136
429 Critical Word Missing
Identify the missing critical 429 label
2
External
30/30
137
429 Critical Word SSM
Identify the critical 429 label with SSM
error
2
External
5/5
144
Keyboard Scan Test
Keyboard Scan test failure
2
Internal
1/1
151
HPI Config
HPI bus Configuration failure
1, 2
Internal
1/0
152
VDL No Radio
No communication to VDL
1, 2
Internal
5/1
153
VDL Low Power
RF Power Amplifier Low Power detected
1, 2
Internal
1/0
154
VDL VSWR High
High VSWR detected on RF
1, 2
Internal
1/1
157
VDL Tuning Parameter
VDL has missing tuning parameters
1, 2
Internal
1/1
158
Antenna Short
VDL Antenna Shorted
1, 2
Internal
1/0
159
Antenna Open
VDL Antenna Open
1, 2
Internal
1/0
160
VDL High Temp
VDL Over Temperature
-, 2
Internal
5/5
161
VDL Low Temp
VDL Under Temperature
2
Internal
5/5
188
PM Configuration Version Verification
Verify PM Config Version is compatible
1
Internal
1/0
189
Verify TSAP Database exists
Verify TSAP database in PM
2
Internal
1/0
190
Verify TSAP Database CRC
Verify the TSAP Database CRC
2
Internal
1/0
191
Verify TSAP Version
Verify the TSAP Database Version is
correct
2
Internal
1/0
192
All Annunciator Test Fail
Annunciator self-test failure
2
Internal
3/0