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Enstrom TH-28/480 Series Maintenance Manual Supplement 8
G1000H Integrated Flight Deck System
May 14/14
Page 1-6
GDU 1040H Displays (PFD/MFD)
The GDU 1040H provides a central display and user interface for the G1000H Integrated
Flight Deck. A GDU 1040H can be configured as either a PFD or an MFD through the
aircraft wiring. The GDU 1040H provides the following functions:
Flight Instrument Functions
Display of attitude (pitch and roll), rate of turn, slip/skid, heading, airspeed, altitude,
and vertical speed information (PFD or reversionary modes only)
Display of engine and airframe instrumentation (MFD or reversionary modes only)
Navigation Instrument Functions
Display of position and ground speed for use by the pilot/flight crew
Display of stored navigation and map databases for use by the pilot/flight crew
Control and display of the HSI
Area navigation functions using the determined position/velocity and stored navigation
data
Approach navigation functions and associated databases
Barometric altitude settings
System Interface Functions
Interfacing with the GIA 63H IAU
Control and display of dual communications transceivers operating in the 118.00 to
136.975 MHz range in 8.33 kHz or 25 kHz frequency spacing
Control and display of dual VOR/ILS receivers tuning from 108.00 to 117.95 MHz in
50 kHz Increments
Control and display of GTX 33H transponder and GDL 69AH data link
The GDU 1040H PFD and MFD are mounted flush to the aircraft instrument panel. See
Figure 3. Instrument Panel Mounted LRUs.
In this installation, the aircraft is configured
with the PFD installed above the MFD on the instrument panel.
GIA 63H Integrated Avionics Unit
The GIA 63H is a microprocessor-based input/output LRU used in the G1000H Integrated
Flight Deck. The GIA 63H communicates with the GDU via an ethernet HSDB and with
other LRUs using RS-232, RS-485/422, and ARINC 429. All configurations are done
through the GDU. The GIA 63H contains the following sub-assemblies:
A main processor that interfaces with all LRUs in the G1000H sub-system.
A 15 channel receiver (12 GPS and 3 GPS/WAAS/SBAS channels).
A VHF COM transceiver that provides tuning from 118.00 to 136.992 MHz in 25 kHz
or 8.33 kHz spacing for 760 or 2280 channel configurations, respectively.
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