Figure 3-14, G1000 Lru Configuration File Storage - Garmin G1000 System Maintenance Manual

3.8.5 Configuration File Storage
The G1000 system is designed to store all configuration settings in various places so that the
configuration is retained in the aircraft during maintenance of units.
During system configuration, each file is sent directly to the applicable LRU where it is stored in local
LRU memory (reference Figure 3-14.) Each file is also stored in the PFD internal memory. The
applicable PFD also sends a copy of all configuration files to the 'Master Configuration module', located
in the connector backshell (see Section 6.16). If the PFD is replaced, the configuration module retains all
configuration files in the aircraft.
The GRS 77/7800, GMU 44 and GDC 7400 configuration/calibration (reference Figure 3-15) is different
than the LRU's shown in Figure 3-14.
G1000 Master Configuration Module
(located in PFD backshell connector)
Master configuration module contains identical
backup configuration files of PFD configuration
memory. PFD cross-checks these backup files
against files contained with PFD memory. PFD self-
configures to match master configuration module.
No. 1 GDU 1040A PFD
Contains 'ACTIVE' PFD settings.
Represents 'SET' column for all
LRUs. Stores all configuration files in
internal memory. Uses master
configuration module for backup.
GMA 1347D
RS-232
Contains 'ACTIVE'
GMA settings. Uses
PFD internal
RS-485
configuration files for
backup.
No. 1 GEA 71
Contains
'ACTIVE'
settings. Uses
PFD internal
configuration files
for backup.

Figure 3-14, G1000 LRU Configuration File Storage

G1000 / GFC 700 System Maintenance Manual - 300/B300 Series King Air
190-00716-01
GMC 710
Contains
'ACTIVE'
settings. Uses
PFD internal
configuration files
for backup.
RS-232
HIGH-SPEED DATABUS
(ETHERNET)
GDU 1500 MFD
Contains 'ACTIVE'
MFD settings. The
MFD uses PFD
configuration files
for backup.
No. 1 GIA 63W
Contains 'ACTIVE'
settings. Uses PFD
internal configuration
files for backup.
No. 1
GTX 33/3000
GCU 477
Contains 'ACTIVE'
Contains
settings. Uses
'ACTIVE'
PFD internal
settings. Uses
configuration files
PFD internal
for backup.
configuration files
for backup.
RS-485
settings. Uses
PFD internal
configuration files
RS-232
No. 2 GDU 1040A PFD
Contains 'ACTIVE' PFD settings.
Represents 'SET' column for all
LRUs. Stores all configuration files in
internal memory. Uses master
configuration module for backup.
internal
No. 2 GIA 63W
Contains 'ACTIVE'
settings. Uses PFD
internal configuration
files for backup.
No. 2
GTX 33/3000
Contains 'ACTIVE'
settings. Uses PFD
internal
configuration files
for backup.
RS-485
GDL 69A GWX 68/70
Contains Contains
'ACTIVE' 'ACTIVE'
settings. Uses
PFD internal
configuration files
for backup. for backup.
GMA 1347D
RS-232
Contains 'ACTIVE'
GMA settings. Uses
PFD internal
configuration files for
RS-485
backup.
No. 2 GEA 71
Contains
'ACTIVE'
settings. Uses
PFD internal
configuration files
for backup.
Page 3-17
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