190-01115-01 G3X™/G3X Touch™ Avionics Installation Manual
Rev. AV Page G-11
Figure G-2.7 Dual GTN 6XX/7XX Interconnect/Configuration Example w/GSU 73
67
48
WHT
BLU
GSU 73
A429 OUT 1A (AIR DATA) 20
A429 OUT 1B (AIR DATA) 21
WHT
BLU
P731
GPS/NAV/COM
GTN 6XX/7XX #1
S
29
ARINC 429 OUT 1A10
WHT
BLU
ARINC 429 IN 1A (GPS) 25
ARINC 429 IN 1B (GPS) 26
WHT
BLU
S
23
24
WHT
BLU
ARINC 429 IN 2A (NAV) 27
ARINC 429 IN 2B (NAV) 28
WHT
BLU
S
29
10
WHT
BLU
ARINC 429 IN 3A (GPS) 30
ARINC 429 IN 3B (GPS) 31
WHT
BLU
S
23
24
WHT
BLU
ARINC 429 IN 4A (NAV) 32
ARINC 429 IN 4B (NAV) 33
WHT
BLU
S
ARINC 429 OUT 1B
GPS/NAV/COM
GTN 6XX/7XX #2
67
48
ARINC 429 IN 1A
ARINC 429 IN 1B
ARINC 429 OUT A
ARINC 429 OUT B
ARINC 429 OUT A
ARINC 429 OUT B
ARINC 429 OUT A
ARINC 429 OUT B
ARINC 429 IN 1A
ARINC 429 IN 1B
WHT
BLU
BLU
WHT
P1004
P1001
P1001
P1004
GDU 46X/37X
RS-232 IN 3 29
SIGNAL GROUND 44
WHT
BLU
S
GDU 46X/37X (PFD)
P4602/P3701
RS-232 IN 2 14
SIGNAL GROUND 44
WHT
BLU
S
7
ETHERNET IN 1A6
ETHERNET IN 1B
8
9
SEE NOTE 13
CONFIGURATION GUIDANCE
1. GTN 6XX/7XX #1 AND #2
A. ON THE ARINC 429 CONFIG PAGE
SET IN 1 SPEED TO "LOW"
SET IN 1 DATA TO "GDU FORMAT 2" (GTN V6.71 AND LATER)
SET OUT 1 SPEED TO "LOW"
SET OUT 1 DATA TO "GARMIN 429" (GTN V6.50 AND LATER)
SET OUT 1 DATA TO "GAMA FORMAT 1" WHEN "GARMIN 429" NOT AVAILABLE
SET SDI TO "LNAV 1" FOR GTN #1 and "LNAV 2" FOR GTN #2
B. ON THE RS-232 CONFIG PAGE
SET CHNL 3 INPUT TO "OFF"
SET CHNL 3 OUTPUT TO "MAPMX"
C. ON THE MAIN MAIN INDICATOR (ANALOG) CONFIG PAGE
SET SELECTED COURSE FOR VLOC TO "IGNORED"
D. ON THE VOR/LOC/GS ARINC 429 CONFIG PAGE
SET NAV RADIO TO "ENABLED"
SET TX SPEED TO "LOW"
SET SDI TO "VOR/ILS 1" FOR GTN #1 AND "VOR/ILS 2" FOR GTN #2
E. ON THE INTERFACED EQUIPMENT CONFIG PAGE
SET CROSS-SIDE NAVIGATOR TO "PRESENT"
2. G3X
A. ON THE GDU 46X/37X RS-232 CONFIG MODE PAGE
SET THE CONNECTED GDU 46X/37X (PFD) RS-232 CHANNEL TO "MAPMX" FOR GTN #1
SET THE CONNECTED GDU 46X/37X (PFD OR MFD) RS-232 CHANNEL TO "MAPMX" FOR GTN #2
SET GSU ARINC 429 TX 1 FORMAT TO "EFIS/AIRDATA" AND "NAV 1 + 2"
SET GSU ARINC 429 RX 1 FORMAT TO "GARMIN GPS" AND "NAV 1" FOR GNS #1
SET GSU ARINC 429 RX 2 FORMAT TO "GARMIN VOR/ILS" AND "NAV 1" FOR GNS #1
SET GSU ARINC 429 RX 3 FORMAT TO "GARMIN GPS" AND "NAV 2" FOR GNS #2 (IF APPLICABLE)
SET GSU ARINC 429 RX 4 FORMAT TO "GARMIN VOR/ILS" AND "NAV 2" FOR GNS #2
IMPORTANT: GTN #1 AND #2 ARE DIFFERENTIATED IN THE G3X SYSTEM BY THE GDU 46X/37X RS-232 PORT
ASSIGNMENTS. GTN #1 SHOULD ALWAYS BE CONNECTED TO A LOWER NUMBERED PORT ON THE PFD. GTN #2 CAN
BE CONNECTED TO A HIGHER NUMBERED PORT ON THE PFD OR TO ANY PORT ON THE MFD.
SEE NOTE 11
6 RS-232 OUT 3
44 RS-232 GND 3/4
WHT
BLU
6 RS-232 OUT 3
44 RS-232 GND 3/4
WHT
BLU
8 ETHERNET OUT 1A
9 ETHERNET OUT 1B
6
7 ETHERNET IN 1B
ETHERNET IN 1A
ETHERNET OUT 1B
ETHERNET OUT 1A
P1002
P1001
P1002
P1001
(PFD OR MFD)
P4602/P3701
NOTE: THIS INTERFACE EXAMPLE DRAWING IS NOT SUFFICIENT FOR INSTALLATION OF A GTN 6XX/7XX
SERIES PRODUCT. PLEASE REFERENCE THE APPROPRIATE INSTALLATION DOCUMENTATION FOR THE
GTN 6XX/7XX UNIT FOR COMPREHENSIVE INSTALLATION AND CONFIGURATION INFORMATION.
SET IN 1 DATA TO "EFIS FORMAT 2" WHEN “GDU FORMAT 2” IS NOT AVAILABLE
NOTE 1: BEGINNING WITH GDU 4XX SOFTWARE V8.91, TRANSITION TO APPROACH MAY BE ENABLED ON THE
GTN 6XX/7XX NAVIGATOR.
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