Table 3-1 - Serial Port Setup - Garmin GNS 480 Installation Manual

In order for a serial port to function correctly, the baud rate of the RX and TX channels
on a given RS232 or RS422 port must be the same (or the unused channel must be set to
NONE). This must be considered when assigning serial ports to interfacing equipment.
Default Configuration
Serial
Port
Rx
1 MAPMX MAPMX
[1] (38400)
2 FADC MAPCOM
[3] (9600)
3 IrDA
[2] (9600-
115200)
4 None
5 SL30 MAPCOM
(9600)
6 SL70
[4] (9600)
7 None
8 Alt Enc.
(1200,
9600)
Notes:
[1] MAPMX is a special format for use with the MX20 Version 5 (or later). MAPCOM refers to the
standard Garmin AT serial output.
[2] Although the IrDA option is shown for port 3, this interface is currently not supported.
[3] The CROSSFILL configuration is used to allow GNX 480's to share information in a dual GNS
480 installation.
[4] If SKYWATCH or SKYWATCH NO UI is set up on an ARINC 429 input, the GTX33+TIS option
will not be available.
GNS 480 (CNX80) Installation Manual560-0982-01 Rev A
Table 3-1 - Serial Port Setup Configurations
Tx
FADC (9600), SL30 (9600), None
(38400)
CROSSFILL (38400), None
(9600)
IrDA
(9600-
115200)
None
Alt Enc. (1200, 9600),
(9600) FADC (9600), None
SL70 GTX32 (9600), GTX33 (9600),
(9600) GTX33+TIS (9600), None
--- COG (9600)
---
Post-Installation Configuration & Checkout
NOTE
Other Available Configurations
Rx
None
GTX32 (9600), GTX33 (9600),
None
Tx
MAPCOM (9600), None
CROSSFILL (38400), None
None
MAPCOM (9600), None
GTX33+TIS (9600), None
---
---
3-3