Garmin GTX 3X5 Series Installation Manual - page 85
190-01499-02
GTX 3X5 Transponder TSO Installation Manual
Rev. 4
Page 6-6
RS-232 - CHANNEL 1 THROUGH CHANNEL 3
Sets the input and output format for channel 1, channel 2, channel 3, and channel 4 of RS-232 interfaces.
Refer to appendix A for data format information.
Table 6-1 RS-232 Channel 1 through Channel 3 Selections
Input/Output
Selection
Description
Unit
Applicability
Notes
Input/Output
Off
No information is received or transmitted. All
Input/Output
XPDR FMT 1
Supports transponder interface to GX000. All
Input/Output
XPDR FMT 2
Supports transponder interface and TIS-A
traffic to GX000.
GTX 335 only
Input or Output
ADS-B+ FMT 1
Receives or transmits necessary ADS-B
GPS data at 9600 baud.
All
[1]
Input or Output
ADS-B+ FMT 2
Receives or transmits necessary ADS-B
GPS data at 38400 baud.
All
[1]
Input/Output
REMOTE FMT 1
Supports transponder interface to GTN
and GNS 480 (CNX80).
All
Input/Output
REMOTE FMT 2
Supports transponder interface and TIS
traffic to GTN and GNS 480 (CNX80)
GTX 335 only
Input/Output
GDL
Supports GDL 88 interface
All
[2]
Input/Output
GNS
Supports GNS 400W/500W Series ADS-
B In weather. Traffic is supported over
ARINC 429. Supplies GPS data.
GTX 345 only
Input/Output
CONNEXT FMT 1
Supports G3X for ADS-B In weather and
traffic.
GTX 345 only
Input
CONNEXT FMT 3
Supports input from a Flight Stream 110/
210.
GTX 345 only
Input
ALT FMT 1 25ft
Supports Sandia/Icarus/ACK altitude
format with 25 ft or lower encoding.
All
Input
ALT FMT 1 100ft
Supports Sandia/Icarus/ACK altitude
format with a parallel Gray source or 100
ft encoding.
All
Input
ALT FMT 3 25ft
Supports Shadin altitude format with 25 ft
or lower encoding.
All
Input
ALT FMT 3 100ft
Supports Shadin altitude format with a
parallel Gray code source or 100 ft
encoding.
All
Input
ADC FMT 1
Supports Shadin G/S/Z ADC formats.
All
Input/Output
LGCY REMOTE 1
Supports transponder interface and TIS-A
traffic to legacy G1000.
All
Input/Output
LGCY REMOTE 2
Supports transponder interface and TIS-A
traffic to legacy G1000.
GTX 335 only