User Guide

190-00592-00 Rev. A Garmin G1000 Pilot’s Guide for the Diamond DA40
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SYSTEM OVERVIEW
• GEA 71 – The GEA 71 receives and processes signals
from the engine and airframe sensors. Sensor types
include engine temperature and pressure sensors as
well as fuel measurement and pressure sensors. The
Engine/Airframe Unit communicates with both IAUs
using an RS-485 digital interface.
• GTX 33 – The GTX 33 is a solid-state, Mode S tran-
sponder that provides Modes A, C, and S operation.
The transponder is controlled through the PFD and
communicates with both IAUs through an RS-232
digital interface.
• GDL 69/69A – The GDL 69/69A is an XM satel-
lite radio receiver that provides real-time weather
information to the MFD and PFD Inset Map. The
Data Link also provides digital audio entertainment.
The Data Link communicates with the MFD using
the High-Speed Data Bus.
A subscription to XM Satellite Radio service is
required for Data Link operation.