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G1000 / GFC 700 System Maintenance Manual - 300/B300 Series King Air
Revision 1
190-00716-01
2.1.12
GDL 69A Datalink
The GDL 69A provides the interface to the GWX 68 weather radar and optional GDL59 wi-fi datalink by
acting as a communications hub between the MFD and GWX 68 and GDL 59 via HSDB. The GDL 69A
also provides XM Radio weather and music entertainment through means of a dedicated satellite data link.
The GDL 69A is mounted behind the instrument panel. Power to the GDL 69A is received from Right Gen
Avionics Bus. The GDL 69A sends weather data through the HSDB bus to the MFD, where the data link
interface is controlled. Digital audio is sent directly to the GMA 1347D Audio Panel.
Optional remote control (GRC 10) and remote control transceiver (GRT 10) may be interfaced with the GDL
69A. Installation of the GRC 10 and GRT 10 is in accordance with Garmin STC SA01487SE or other
approved data. Refer to the approved Instructions for Continued Airworthiness information for these units.
It is recommended that GRT 10 be powered from the Entertainment Bus.
Figure 2-12, GDL 69A Datalink
2.1.13
GDL 59 Wi-Fi Datalink (optional)
The GDL 59 provides a POTS (plain old telephone service) phone interface and a high speed data link
between the aircraft systems and ground computers while the aircraft is on the ground using the IEEE
802.11g (“Wi-Fi”) protocol. The GDL 59 also provides the interface to an optional GSR 56 satellite
datalink, which adds airborne low speed data link and voice communication capability. The GDL 59 unit
interfaces to the Garmin Integrated Flight Deck via the GDL69A using HSDB. The GDL 59 is located in the
aft cabin floor area, just forward of the cabin door. The GDL 59 is powered from the Right Gen Avionics
Bus.
Figure 2-13, GDL 59 Wi-Fi Datalink
Summary of Contents for Cessna Caravan G1000
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