Figure 2-17, Gsd 41 Data Concentrator; Figure 2-18, Gts 820/850 Traffic System - Garmin G1000 Nxi System Maintenance Manual

GSD 41 Data Concentrator (optional)
The GSD 41 interfaces to various airframe discrete outputs to support third party systems such
as Flight Data Recorders. The GSD 41 is located on the avionics shelf in the tail area. The GSD
41 is powered from No. 2 Triple Fed Bus.
GTS 820/850 Traffic System (optional)
The GTS 820/850 is a traffic surveillance system that uses active interrogation of Mode S and
Mode C transponders to provide traffic advisories to the pilot. The GTS 820 is a TAS unit; the
GTS 850 is a TCAS I unit. The installation includes a top directional antenna (GA 58) paired
with a GPA 65 power amplifier / low noise amplifier (PA/LNA) unit and a bottom, unamplified
GA 58 antenna. The GTS 820/850 is located in the nose avionics bay on the top, left shelf. The
GPA 65 is located in the left sidewall area, just in front of the most forward cabin window. The
GTS 820/850 traffic system is powered from the Right Gen Avionics bus.
GTS Traffic Processor (optional)
The GTS Traffic Processor is a microprocessor-based Line Replaceable Unit that uses active
interrogations of Mode S and Mode A/C transponders to provide Traffic Advisories and
Resolution Advisories (GTS 8000 only) to the pilot. When installed, the GTS Processor can be
configured as TAS (GTS 825), TCAS I (GTS 855), or TCAS II (GTS 8000). The GTS traffic
processor is installed in the nose avionics bay. The GTS interfaces to the GA 58 traffic
antennas which are mounted on the upper and lower fuselage. The GTS traffic processor also
interfaces with the GTX 3000 (when installed) through ARINC 429 digital data lines. When a
GTX 345R is installed, The GTX communicates with the GTS processor via the G1000 HSBD
bus. The GTS traffic processor is powered from the Right Gen Avionics Bus.
G1000 NXi System Maintenance Manual
King Air 300 Series
190-00716-N1

Figure 2-17, GSD 41 Data Concentrator

Figure 2-18, GTS 820/850 Traffic System

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