190-02246-10 GI 275 Part 23 AML STC Installation Manual
Rev. 11 Page C-6
C.4 GPS Source
The GPS position sources listed in Table C-5 are compatible with the GI 275.
Table C-5 Compatible GPS Position Source
Mfr Model Data Format Interfacing Equipment Configuration Information Notes
Garmin
Other GI 275 HSDB
Crossfills data from a different GI 275
interfaced to a GPS source.
Internal
VFR GPS
Interfaces page VFR GPS: Internal
Internal VFR GPS must install antenna
per Section 4.6.3. [1]
GNS 4XXW
GNS 5XXW
ARINC 429
RS-232
Main ARINC 429 Config page
IN 1: Low, Garmin GDU
OUT: High, GAMA 429
SDI: LNAV 1 (for GPS 1)
LNAV 2 (for GPS 2)
VNAV: Enable Labels
If a GNS 500W TAWS unit is installed,
it must be connected as GPS 1.
Main CDI/OBS Config page is only
available on GNS 430W/430AW and
GNS 530W/530AW.
Main software v3.30 or later is required.
Main RS-232 Config page
CHNL 1: INPUT: Off
OUTPUT: MapMX
Main CDI/OBS Config page Menu key > Ignore CDI Key? > Yes
GNS 480
ARINC 429
RS-232
Serial Setup page
CH 1: RX: MapMX
TX: MapMX
GNS 480 can only be connected to
RS-232 ports 1 or 2 on the GI 275.
ARINC 429 Setup page
CH 2 IN: SEL: Garmin GDU
SPEED: Low
SDI: Sys 1 (for GPS 1)
Sys 2 (for GPS 2)
CH 1 OUT: SEL: GAMA 429
Miscellaneous Setup page CDI SELECT: IGNORE
GTN 6XX
GTN 7XX
HSDB
Interfaced Equipment page
Set GDU to Present. Set the format to
GI 275 for each installed GI 275.
Software v6.70 or later required.
Main Indicator (Analog)
Configuration page
CDI Key: Disabled
GTN Xi HSDB
Interfaced Equipment page
Set GDU to Present. Set the format to
GI 275 for each installed GI 275.
Software v20.10 or later required.
Main Indicator (Analog)
Configuration page
CDI Key: Disabled
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