Rs-232 Configuration Page - Garmin G3X Touch Installation Manual

34.4.19 RS-232 Configuration Page

The RS-232 Configuration Page allows configuration of the RS-232 ports on the GDU 4XX displays.
1. In configuration mode, use the Touch Panel or a Move Selector Knob to select the RS-232
Configuration Page.
2. Use the Touch Panel or a Move Selector Knob to select the desired configurable item and make the
desired change.
3. Press the Back key to return to the Configuration Mode page when finished (if desired).
Each connected GDU 4XX has five configurable RS-232 (PFD 1, MFD1, PFD 2, and MFD2) channels.
Use the Touch Panel or a Move Selector Knob to select the desired RS-232 channel, the optional settings
are:
Garmin Data Transfer - The proprietary format used to exchange data with a PC or a GDL 39
Garmin Instrument Data - Used for connecting to compatible Garmin LRUs (e.g. GSU 25, GMC 30X)
GTN Connext 2 - Used for connecting a GDU 4XX display to a GTN 6XX/7XX for performing Connext
functions, such as flight plan transfer.
Garmin HSDB - Used for connecting to compatible Garmin LRUs (e.g. GTS 8XX, see
Section 27.2)
Garmin VHF Comm - Outputs frequency tuning data to an SL40, GTR 200, or GTR 225 comm radio,
and receives radio status data for on-screen radio display.
Garmin VHF Nav/Comm - Outputs frequency tuning and VOR radial selection data to an SL30 or
GNC 255 nav/comm radio. Receives lateral/vertical NAV deviation signals and radio status data for on-
screen radio display.
NMEA Out - Supports the output of standard NMEA 0183 version 3.01 data at user selectable baud rate of
either 4800 or 9600. The GDU outputs data from the selected GPS source (internal GPS or external GPS1/
GPS2) via NMEA sentences.
190-01115-01 G3X/G3X Touch Install Manual - GDU 4XX Config and Post Install Checkout
Rev. AC
Section 26.2 and
Page 34-118