190-01115-01 G3X/G3X Touch Installation Manual - GSU 73 Installation
Rev. AC Page 19-2
19.1.1 Features Summary
Air Data
Interfaces
Pressure Altitude CAN (1)
Density Altitude RS-232 (2 TX/2 RX)
Vertical Speed ARINC 429 (4 RX/2 TX)
Mach Number OAT Probe (GTP 59)
Indicated Airspeed Magnetometer (GMU 22) (1 RS-232 TX/ 1 RS-485 RX)
True Airspeed
AHRS
Engine/Airframe
Magnetic Heading 27 Analog Inputs
Pitch Angle 4 Digital Inputs
Roll Angle 4 Discrete Inputs
Linear Accelerations 2 Discrete Outputs
Pitch, Roll, Yaw Rotation Rates
19.2 General Specifications
See Section 2.2 for power/current specifications, and Section 2.4.1 for dimension/weight specifications.
GSU 73 HARDWARE MOD LEVEL HISTORY
The following table identifies hardware modification (Mod) Levels for the GSU 73 LRU. Mod Levels are
listed with the associated service bulletin number, service bulletin date, and the purpose of the
modification. The table is current at the time of publication of this manual (see date on front cover) and is
subject to change without notice.
MOD
LEVEL
SERVICE
BULLETIN
NUMBER
SERVICE
BULLETIN
DATE
PURPOSE OF MODIFICATION
1 N/A N/A Improved HSCM accuracy when using +28 V supply
2N/A N/A
Improved backup capacitor circuit to increase backup time in
certain under-voltage conditions
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