Garmin Diamond DA40, Maintenance Manual

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Page 2-24 G1000/DA40 System Maintenance Manual
Revision 6 190-00303-03
2.8.2 Engine Indicator System
The GEA 71 provides engine/airframe data to the G1000 system. The unit interfaces to transducers
shown in Figure 2-25 (see Section 2.1.4). Analog data is received from the transducers and is converted
to digital signal by the GEA 71. Digital information is then sent through the primary RS-485 serial path
to the #1 GIA 63. From the GIA, data is sent through the HSDB connection to the PFD, then on to the
MFD for display. A backup data path from the GEA to the #2 GIA 63, then on to the MFD, exists in the
event the primary path fails.
Figure 2-26. G1000 Engine/Airframe Interface