GTN650 G3X wiring

I spent a good hour and a half today trying to figure out how to get the GTN650, GTX45R, and the PFD talking to each other. Finally after getting most of the way there I realized that I was searching the G3X install manual for ARNIC and not ARINC. Towards the end of the G3X installation manual in the interconnect section the proper software settings for both the GDU and the GTN. (that is a lot easier than trying to figure that out by guessing the difference between "format 1" and "format 2").

*Note: to get into the configuration sections of the devices, hold "menu" when booting the GDU and hold "home" when booting the GTN.

RS-232 Configuration Overview

• PFD
• RS232-0: GSU25#1
• GSU25#1: RS232
• Configuration: N/A
• RS232-1: GTN650 
• GTN650: RS232-1
• Configuration: MAPMX
• RS232-2: GTN650
• GTN650: RS232-2
• Configuration: CONNEXT
• RS232-3: GDL51R
• GDL51R: RS232-2
• Configuration: CONNEXT
• RS232-4:
• Not Used
• RS232-5: GTX45R
• GTX45R: RS232-3
• Configuration: CONNEXT
• MFD
• RS232-1:
• RS232-2: GDL51R
• GDL51R: RS232-1
• Configuration: CONNEXT
• RS232-3: Vertical Power
• Vertical Power: RS232
• Configuration: "vertical power"
• RS232-4: GEA24
• GEA24: RS232
• Configuration
• RS232-5: GTX45R
• GTX45R: RS232-3
• Configuration: CONNEXT

The following sections detail the software settings for each of the devices.

Vertical Power (VPX-Pro)

1. On the PFD (GDU 4XX) in configuration mode
1. Under RS-232 page in the setup, set the MFD serial port that is connected to the VP-X Pro to “Vertical Power”. (A green check mark in the left column indicates it is receiving data from the VP-X. )
2. The trim and flaps are automatically configured to read their position from the VP-X. If you have a third trim axis wired into the G3X analog position input, you can configure it in the trim and flap setup as described in the Garmin manual. 
3. You can configure the Amps gauge to display amps from the VP-X instead of from an external shunt.

GDL-51R

 

1. On the GDU 4XX  in configuration mode
1. Under the RS-232 interface setup page set serial port connected to the GDL-51R to "CONNEXT 57600 BAUD" A green check is show next to the connection when communication is established with the GDL51.

GTX-45R

             

1. GSU 25 WITH GTX 45R 
1. NO CONFIGURATION REQUIRED FOR GSU 25 SERIAL PORT 
2. GDU 4XX RECEIVING TRAFFIC/WEATHER FROM GTX 45R 
1. THE GTX MAY BE CONNECTED TO ANY SERIAL (RS-232) PORT ON THE GDU 4XX FROM 1 TO 5. ONE CONNECTION ONLY PER GDU.
2. ON THE GDU 4XX RS-232 CONFIGURATION PAGE 
1. SET SERIAL PORT CONNECTED TO GTX TO "CONNEXT 57600 BAUD" 
3. GTX X45R REMOTE MOUNT TRANSPONDER
1. ON GDU 4XX TRANSPONDER CONFIGURATION PAGE SELECT INSTALLED TRANSPONDER TYPE (E.G. GTX 45R) 
2. CONFIGURE HSDB DEVICES (GTN/GTS ENABLE/DISABLE) 
3. CONFIGURE TRANSPONDER SERIAL PORTS 2,3,4 FOR "CONNEXT FMT 1"
4. CONFIGURE ALL ADS-B OUT DATA FIELDS 
4. GTX X45R REMOTE MOUNT TRANSPONDER INSTALLED WITH GTN IN SYSTEM
1. ON THE GTN INTERFACED EQUIPMENT PAGE
1. SET ADS-B IN SOURCE TO "GTX #1"
2. ON THE PFD1 TRANSPONDER CONFIGURATION PAGE
1. ENABLE "GTN" ON HSDB DEVICES FIELD
5. GTN/GNS POSITION SOURCE
1. WHEN GTN IS CONNECTED TO A GTX 345R/45R USING ETHERNET, SELECT "GTN PRESENT" ON GDU 37X/4XX TRANSPONDER CONFIGURATION PAGE
2. ON THE GTN/GNS RS-232 CONFIGURATION PAGE SET SERIAL PORT OUTPUT CONNECTED TO GTX TO "ADS-B+" OR "ADS-B+ FORMAT 1" 
6. GTX X35R/X45R REMOTE MOUNT TRANSPONDER
1. ON GDU 4XX TRANSPONDER CONFIGURATION PAGE
1. SELECT INSTALLED TRANSPONDER TYPE (E.G. GTX 345R)
2. CONFIGURE SERIAL PORT CONNECTED TO ADS-B POSITION SOURCE TO "ADS-B+"
3. CONFIGURE HSDB DEVICES (GTN/GTS ENABLE/DISABLE)

GTN-650 to PFD

1. GTN 6XX/7XX
1. ON THE ARINC 429 CONFIG PAGE
1. SET IN 1 SPEED TO "LOW"
2. SET IN 1 DATA TO "EFIS FORMAT 2"
3. SET OUT 1 SPEED TO "LOW"
4. SET OUT 1 DATA TO "GARMIN 429" (GTN V6.50 AND LATER)
5. SET OUT 1 DATA TO "GAMA FORMAT 1" WHEN "GARMIN 429" NOT AVAILABLE
6. SET SDI TO "LNAV 1"
2. ON THE RS-232 CONFIG PAGE
1. SET CHNL 3 INPUT TO "MAPMX FORMAT 2" WHEN THIS FORMAT IS AVAILABLE
2. SET CHNL 3 OUTPUT TO "MAPMX" WHEN "MAPMX FORMAT 2" INPUT NOT AVAILABLE
3. SET CHNL 4 INPUT/OUTPUT TO "CONNEXT FORMAT 2" WHEN CONNEXT IS USED
3. ON THE MAIN MAIN INDICATOR (ANALOG) CONFIG PAGE
1. SET SELECTED COURSE FOR VLOC TO "IGNORED"
4. ON THE VOR/LOC/GS ARINC 429 CONFIG PAGE
1. SET NAV RADIO TO "ENABLED"
2. SET TX SPEED TO "LOW"
3. SET SDI TO "VOR/ILS 1"
2. G3X
1. ON THE GDU 4XX/37X RS-232 AND ARINC 429 CONFIG MODE PAGES
1. SET THE CONNECTED GDU 4XX/37X RS-232 CHANNEL TO "MAPMX"
2. SET ARINC 429 TX 1 FORMAT TO "EFIS/AIRDATA FORMAT 1" AND "NAV 1"
3. SET ARINC 429 RX 1 FORMAT TO "GARMIN GPS" AND "NAV 1"
4. SET ARINC 429 RX 2 FORMAT TO "GARMIN VOR/ILS" AND "NAV 1"
2. ON THE GDU 4XX RS-232 CONFIG MODE PAGE WHEN CONNEXT IS USED
1. SET THE CONNECTED GDU 4XX (PFD) RS-232 CHANNEL TO "GTN CONNEXT 2"