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190-00728-04 Rev. A
Embraer Prodigy
®
Flight Deck 100 Pilot’s Guide
4
SYSTEM OVERVIEW
•
GMU 44
(2) – Measures local magnetic field. Data is sent to the GRS 77 for processing to determine aircraft
magnetic heading. This unit receives power directly from the GRS 77 and communicates with the GRS 77,
using an RS-485 digital interface.
•
GTX 33
(1)
and GTX 33D
(1) – Solid-state transponders that provide Modes A, C and S capability. The GTX
33D includes Mode S with diversity and is indicated as ‘XPDR2’. The GTX 33 is indicated as ‘XPDR1’. Both
transponders can be controlled from either PFD, and only one transponder can be active at a time. Each
transponder communicates with the on-side GIA 63W through an RS-232 digital interface. These transponders
are not used when the TCAS II option is installed.
•
GDL 69A
(1) – A satellite radio receiver that provides weather information to the MFD (and, indirectly, to the
inset map of the PFD) as well as digital audio entertainment. The GDL 69A communicates with the MFD via
HSDB connection. A subscription to the SiriusXM Satellite Radio service is required to enable the GDL 69A
capability.
•
GDL 59
(1) – Provides system WI-FI connectivity. GDL 59 operation is performed with the MFD through the
HSDB. Connectivity with the GSR 56 is through the RS-232 bus. Computers and/or EFBs (Electronic Flight
Bag) may also be connected through three Ethernet ports.