Figure 1-28 Gi 275 Primary Adi, Reverting Hsi/Standby Adi, Mfd, And Eis - Garmin GI 275 Installation Manual

Radar
ARINC 429
Altimeter
RS‐232
Stormscope
HSDB
Weather
Analog or RS‐232 or
GPS/NAV
ARINC 429 or HSDB
USB
GSB 15
GTP 59
Analog
OAT Probe
[2]
Backup GPS
Coaxial
Antenna
[5]
GMU 44B
LRU Power
OR
GMU 11 RS‐232 (GMU 44B)
RS‐485 (GMU 44B)
Magnetometer
OR
RS‐232 (GMU 11)
Autopilot
[1] Discrete & ARINC 429
HSDB or Analog or
NAV #1
RS‐232 or ARINC 429
190-02246-10
Rev. 11
GI 275
Base Unit
MFD
Backup Battery
(Optional)
HSDB
Internal ADAHRS
[ADAHRS or ADAHRS + AP units]
GI 275
Primary ADI
[Attitude, Altitude, Airspeed, and Heading]
Backup Battery
(Optional)
GPS #1
HSDB or HSDB or
RS‐232 & [5]
ARINC 429
External Flight
Analog
Director

Figure 1-28 GI 275 Primary ADI, Reverting HSI/Standby ADI, MFD, and EIS

GI 275
Base Unit
HSDB [4]
EIS #1
HSDB
Mechanical
Internal ADAHRS
[ADAHRS]
GI 275
HSDB
HSI/Standby ADI
[3]
[Attitude, Altitude, Airspeed, and Heading]
Backup Battery
(Required) [8]
GPS #2 HSDB or
RS‐232 &
[5]
ARINC 429
HSDB or Analog or
NAV #2
RS‐232 or ARINC 429
RS‐232 (GEA 24)
OR
RS‐485 (GEA 110)
Mechanical
Reversionary
Discrete
Switch
[3]
Required and installed per STC
Optional and installed per STC
Not installed per STC
[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
Standby
one, not both.
[3]....HSI/Standby limited to Class I‐II aircraft.
Instrument
Reversionary switch required when Standby ADI is
an HSI. See section 3 for restrictions.
[4]....If HSDB ports are available, this connection is
optional as an HSDB failure redundancy.
[5]....GPS source is required. Either backup antenna or
Magnetic
external GPS source.
[6]....Must be retained.
Compass
[7]....Required connection for aiding AHRS.
[6] [8]....A backup battery is required for Standby GI 275
units that do not utilize an electrical power source
that is independent from the aircraft's primary
electrical power source.
GI 275 Part 23 AML STC Installation Manual
GEA 24/110
Engine Inputs
[2]
Pitot/Static
Plumbing
[7]
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