Figure 3-5, G1000 Lru Configuration File Storage - Garmin G1000 Nxi System Maintenance Manual

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 3-5.). 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 6.17). If the PFD is replaced, the
configuration module retains all configuration files in the aircraft.
The GSU 75B, GRS 77/7800, GMU 44, and GDC 7400 configuration/calibration (reference
Figure 3-6) is different than the LRU's shown in Figure 3-5.
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 1050A 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 3-5, G1000 LRU Configuration File Storage

G1000 NXi System Maintenance Manual
King Air 300 Series
190-00716-N1
GMC 710
Contains
'ACTIVE'
settings. Uses
PFD internal
configuration files
for backup.
RS-232
HIGH-SPEED DATABUS
(ETHERNET)
GDU 1550 MFD
Contains 'ACTIVE'
MFD settings. The
MFD uses PFD
internal
configuration files
for backup.
No. 1 GIA 63W
Contains 'ACTIVE'
settings. Uses PFD
internal configuration
files for backup.
No. 1 GTX
Contains 'ACTIVE'
GCU 477
settings. Uses
Contains
PFD internal
'ACTIVE'
configuration files
settings. Uses
for backup.
PFD internal
configuration files
for backup.
RS-485
GDL 69A
Contains
'ACTIVE'
settings. Uses
PFD internal
configuration files
for backup.
RS-232
No. 2 GDU 1050A PFD
Contains 'ACTIVE' PFD settings.
Represents 'SET' column for all
LRUs. Stores all configuration files in
internal memory. Uses master
configuration module for backup.
No. 2 GIA 63W
RS-232
Contains 'ACTIVE'
settings. Uses PFD
internal configuration
files for backup.
RS-485
No. 2 GTX
Contains 'ACTIVE'
settings. Uses PFD
internal
configuration files
for backup.
RS-485
GWX 68/70
Contains
'ACTIVE'
settings. Uses
PFD internal
configuration files
for backup.
GMA 1347D
Contains 'ACTIVE'
GMA settings. Uses
PFD internal
configuration files for
backup.
No. 2 GEA 71
Contains
'ACTIVE'
settings. Uses
PFD internal
configuration files
for backup.
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