Figure 2-15, Gdl 59 Wi-Fi Datalink; Figure 2-16, Gsr 56 Satellite Receiver - Garmin G1000 Nxi System Maintenance Manual

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 GDL 69A or PFD 2 using HSDB. The GDL 59 is located in the aft cabin floor area, just
forward of the cabin door or on the upper avionics equipment shelf in the tail section. The GDL
59 is powered from the Right Gen Avionics bus.
GSR 56 Satellite Receiver (optional)
The GSR 56 provides airborne low speed data link and voice communication capability to
Garmin Integrated Flight Deck installations. The GSR 56 contains a transceiver that operates
on the Iridium Satellite network. The GSR 56 interfaces directly to the GDL 59 via an RS-232
interface or may be installed as a stand-alone unit with an interface to GIA 1. The GSR 56 is
located in the aft cabin floor area, just forward of the cabin door or on the upper avionics
equipment shelf in the tail section. The GSR 56 is powered from the Avionics No. 2 bus. With
relocation to the tail section, the GSR 56 has an internal heater powered from the Right Gen
Avionics Bus.
G1000 NXi System Maintenance Manual
King Air 300 Series
190-00716-N1

Figure 2-15, GDL 59 Wi-Fi Datalink

Figure 2-16, GSR 56 Satellite Receiver

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