Installation Instructions
190-01007-A3 GTN 6XX/7XX AML STC Installation Manual
Rev. 4 Page 5-53
ARINC 429 Output Selections
ARINC 429 Channel 1 defaults to Off. ARINC 429 channel 2 defaults to Garmin w/ TIS. The GTX 33
can be configured to include GPS, Airdata, AHRS, EFIS/Airdata, and ADLP ARINC 429 input,
functioning as an ARINC 429 data concentrator. Each output port can be configured independently for the
desired function. Both ARINC 429 outputs send high speed ARINC 429 data.
SELECTION DESCRIPTION
CHANNEL 1 (DATA)
• DATA SOURCE: OFF, ADLP, GARMIN, GARMIN TAS, or
GARMIN W/TIS.
• DEFAULTS to OFF.
• ARINC 429 input channel 4 sets the ARINC 429 output channel 1
to the same selection.
CHANNEL 2 (DATA)
• DATA SOURCE: OFF, GARMIN, GARMIN TAS, or GARMIN
W/TIS.
• DEFAULTS to GARMIN W/TIS.
• Do not select GARMIN W/TIS if the aircraft contains another traffic
detection system.
The Garmin format is a data concentration function. The following data is sent out at specified intervals
using high speed ARINC 429 (100 kHz). The transmit data labels and their rates are as follows:
Table 5-51. Garmin Format Output Labels (1)
Label Data Rate
100 Selected Course (degrees) 200 ms
203 Pressure Altitude (feet) 100 ms
204 Barometric Corrected Altitude (feet) 100 ms
206 Indicated Air Speed (knots) 100 ms
210 True Air Speed (knots) 100 ms
211 Total Air Temperature (degrees) 100 ms
213 Static Air Temperature (degrees) 100 ms
314 True Heading 100 ms
320 Magnetic Heading (degrees) 100 ms
371 GA Equipment Identifier 500 ms
377 Equipment Identifier 500 ms