Garmin GTX 32 Installation Manual - Page 33

RS-232 Serial Data Electrical Characteristics, Pin Name, Connector, RS-232 Input/Output, Software

Get Garmin GTX 32 PDF manuals and user guides View all Garmin GTX 32 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 33 highlights

4.4.1 RS-232 Serial Data Electrical Characteristics The GTX 32 can be configured to include GPS, Altitude, and Airdata data inputs on two RS-232 input lines. Altitude data supplied to the GTX 32 can be output to the GNS 480 (CNX80) on an RS-232 output line. Refer to Figure C-3 (of this document) and the GDL 90 Installation Manual 560-1049-02 for information when connecting to a GDL 90. Pin Name RS-232 OUT 1 RS-232 OUT 2 RS-232 IN 1 RS-232 IN 2 Table 4-5. RS-232 Input/Output Pin Assignments Connector Pin I/O P3271 20 Out P3271 24 Out P3271 19 In P3271 2 In The RS-232 outputs conform to EIA Standard RS-232C with an output voltage swing of at least ±5 V when driving a standard RS-232 load. Refer to Appendix C for RS-232 serial data interconnect. 4.5 RS-232 Input/Output, Software Update Connections When the GTX 32 is installed in a system other than a Garmin Integrated Flight Deck system an optional RS-232 serial data connector should be installed in the aircraft for future software upgrades, negating the need to remove the transponder from the aircraft. The connector can be mounted anywhere convenient for access, such as under the instrument panel, on a remote avionics shelf next to the unit or in the instrument panel itself. Be sure to label the connector for Software Update. Do not include the Test Mode Select switch in the aircraft. See Figure 4-2 for software update connections. If the GTX 32 installation interfaces with a GNS 480 (CNX80) in the aircraft, the GNS 480 (CNX80) must be turned off during GTX 32 software upload, due to loading of RS-232 port 1. Figure 4-2. GTX 32 Software Update Connections GTX 32 Installation Manual 190-00303-60 Page 4-5 Revision F

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
GTX 32 Installation Manual
Page 4-5
190-00303-60
Revision F
4.4.1
RS-232 Serial Data Electrical Characteristics
The GTX 32 can be configured to include GPS, Altitude, and Airdata data inputs on two RS-232 input
lines.
Altitude data supplied to the GTX 32 can be output to the GNS 480 (CNX80) on an RS-232 output
line.
Refer to Figure C-3 (of this document) and the GDL 90 Installation Manual 560-1049-02 for information
when connecting to a GDL 90.
Table 4-5.
RS-232 Input/Output Pin Assignments
Pin Name
Connector
Pin
I/O
RS-232 OUT 1
P3271
20
Out
RS-232 OUT 2
P3271
24
Out
RS-232 IN 1
P3271
19
In
RS-232 IN 2
P3271
2
In
The RS-232 outputs conform to EIA Standard RS-232C with an output voltage swing of at least ±5 V
when driving a standard RS-232 load.
Refer to Appendix C for RS-232 serial data interconnect.
4.5
RS-232 Input/Output, Software Update Connections
When the GTX 32 is installed in a system other than a Garmin Integrated Flight Deck system an optional
RS-232 serial data connector should be installed in the aircraft for future software upgrades, negating the
need to remove the transponder from the aircraft.
The connector can be mounted anywhere convenient
for access, such as under the instrument panel, on a remote avionics shelf next to the unit or in the
instrument panel itself.
Be sure to label the connector for Software Update.
Do not include the Test
Mode Select switch in the aircraft.
See Figure 4-2 for software update connections.
If the GTX 32 installation interfaces with a GNS 480 (CNX80) in the aircraft, the GNS 480 (CNX80)
must be turned off during GTX 32 software upload, due to loading of RS-232 port 1.
Figure 4-2.
GTX 32 Software Update Connections