Garmin GI 275 - System Architecture Examples

190-02246-10 GI 275 Part 23 AML STC Installation Manual
Rev. 11 Page 1-26
1.4 System Architecture Examples
The GI 275 can be interfaced with other existing aircraft systems. Refer to Appendix C for equipment compatible with the GI 275. Example installation block
diagrams are shown in Figure 1-23 through Figure 1-28.
Figure 1-23 GI 275 Primary ADI and Twin-Engine EIS
GI275
PrimaryADI
[Attitude,Altitude,Airspeed,andHeading]
GI275
BaseUnit
EIS
#1Engine
GI275
BaseUnit
EIS
#2Engine
GTP59
OATProbe
[2]
Pitot/Static
Plumbing
[8]
BackupGPS
Antenna
[5] 
GPS#1‐2
[5]
GMU44B
OR
GMU11
Magnetometer
[3]
OR
NAV#1‐2
Radar
Altimeter
SVT
Traffic
ExternalFlight
Director
Autopilot
[1]
GEA24/110
Engine#1
Inputs[2]
OR
StandbyInstruments
Standby
Attitude
[6]
Standby
Airspeed
[6]
Magnetic
Compass
[7]
Standby
Altimeter
[6]
Analog
Mechanical
Coaxial
RS‐232(GMU44B)
RS‐485(GMU44B)
RS‐232(GMU11)
HSDBor
ARINC429
ARINC429
HSDBor
Discrete&ARINC429
Analog
HSDB HSDB
RS‐232(GEA24)
RS‐485(GEA110)
Analog
Digital
GEA24/110
Engine#2
Inputs[2]
OR
RS‐232(GEA24)
RS‐485(GEA110)
Analog
Digital
LRUPower
RequiredandinstalledperSTC
OptionalandinstalledperSTC
NotinstalledperSTC
BackupBattery
(Optional)
InternalADAHRS
[ADAHRSorADAHRS+APunits]
HSDBorAnalog
orRS‐232or
ARIN429
[1]….GI275ADAHRS+APrequiredtodrivethe
autopilotifequipped.
[2].…GTP59interfaceisoptionalbutrecommended.
IfthesystemincludesaGI275ADI(s),theGTP
59MUSTONLYbeconnectedtotheGI275
ADI(s).ForstandaloneGI275EISinstallations,
connecttheGTP59totheGEA24/110.If
connectedtoEISadapterintwin‐engine
aircraft,onlyconnecttoone,notboth.
[3]....Requiredifusedascompensatedheading
sourceforHSI.
[4]….Reserved.
[5].…GPSsourceisrequired.Eitherbackup
antennaorexternalGPSsource.
[6]….StandbyinstrumentnotrequiredforVFR
onl ya ircraft .
[7]….Mustberetained.
[8]….RequiredconnectionforaidingAHRS.
HSDBor
RS‐232&
ARINC429
GSB15
USB