Installation Instructions

GTN 6XX/7XX AML STC Installation Manual 190-01007-A3
Page 1-6 Rev. 4
1.4.3 GTN Interface Summary
The GTN utilizes ARINC 429, RS-232, discrete inputs/outputs, and Garmin High Speed Data Bus
(HSDB) interfaces to communicate with other LRUs and Systems on the aircraft. A summary of the GTN
interfaces are shown in Figure 1-1. For more detail, refer to Appendix E.
Garmin
GTN 6XX/7XX
Fuel
Management
System
Crossfill
(from another
GTN)
Switches/
Annunciators
Air Data
Transponder
Altitude Encoder
Autopilot
Traffic System
Lightning
Detection
Audio Panel
PFD/MFD
CDI/HSI
Datalink
(XM Radio,
NEXRAD, etc.)
NAV Antenna
COM Antenna
GPS/WAAS
Antenna
GTN 635/650/750 OnlyGTN 650/750 Only
DME
Weather Radar*
GSR 56*
GDL 88*
*GTN Software Version 3.00 or later
Figure 1-1. GTN System Interface Overview