Line Replaceable Units - Garmin G950 Pilot's Manual

SYSTEM OVERVIEW

1.1 LINE REPLACEABLE UNITS

• GDU 1040 (2) – The left-hand GDU is configured as a Primary Flight Display (PFD) and the right-hand GDU
as a Multi Function Display (MFD). Both feature 10.4-inch LCD screens with 1024 x 768 resolution. The
displays communicate with each other through a High-Speed Data Bus (HSDB) Ethernet connection. Each
display is also paired with an Ethernet connection to an IAU.
• GMA 347 (1) – The Audio Panel integrates navigation/communication radio (NAV/COM) digital audio, intercom,
and marker beacon controls, and is installed between the displays. This unit communicates with both IAUs
using an RS-232 digital interface.
• GIA 63W (2) – The Integrated Avionics Units (IAU) function as the main communication hubs, linking all
LRUs with the on-side display. Each IAU contains a GPS SBAS receiver, VHF COM/NAV/GS receivers, and
system integration microprocessors, and is paired with the on-side display via HSDB connection. The IAUs are
not paired together and do not communicate with each other directly.
2 Garmin G950 Pilot's Guide for the Pilatus PC-6 190-00870-02 Rev. A