Garmin G3X - Page 437

190-01115-01 G3X™/G3X Touch™ Avionics Installation Manual
Rev. AV Page 24-37
Figure 24-2.17 GSU 25 - GNX 375/GDU 4XX Interconnect/Configuration Example
28
27
GAD 29
A429 TX 1A (AIR DATA) 24
A429 TX 1B (AIR DATA) 12
P292
GNX 375
S
2
ARINC 429 OUT 1A1
ARINC 429 RX 1A (GPS) 23
ARINC 429 RX 1B (GPS) 11
S
ARINC 429 OUT 1B
ARINC 429 IN 1A
ARINC 429 IN 1B
P3751
5
RS-232 OUT 1
GDU 4XX
RS-232 IN 1 47
RS-232 OUT 1 48
CONFIGURATION GUIDANCE
1. GNX375
A. ON THE ARINC 429 CONFIG PAGE
SET IN 1 SPEED TO "LOW"
SET IN 1 DATA TO "EFIS/AIRDATA"
SET OUT 1 SPEED TO "LOW"
SET OUT 1 DATA TO "GAMA FORMAT 1"
SET SDI TO "LNAV 1"
B. ON THE RS-232 CONFIG PAGE
SET CHNL 1 INPUT/OUTPUT TO "MAPMX"
SET CHNL 2 INPUT/OUTPUT TO "CONNEXT 57600"
SET CHNL 3 INPUT/OUTPUT TO "TRANSPONDER FRMT 1"
C. ON THE MAIN INDICATOR (ANALOG) CONFIG PAGE
SET SELECTED COURSE TO "ALLOWED"
2. G3X
A. ON THE GDU 4XX RS-232 AND ARINC 429 CONFIG MODE PAGES
SET THE CONNECTED GDU 4XX RS-232 CHANNEL TO "MAPMX"
SET ARINC 429 TX 1 FORMAT TO "EFIS/AIRDATA FORMAT 1" AND "NAV 1"
SET ARINC 429 RX 1 FORMAT TO "GARMIN GPS" AND "NAV 1"
B. ON THE GDU 4XX RS-232 CONFIG MODE PAGE WHEN CONNEXT IS USED
SET THE CONNECTED GDU 4XX RS-232 CHANNEL TO "CONNEXT 57600 BAUD"
20 RS-232 IN 1
P4X02
6 RS-232 OUT 2
21 RS-232 IN 2
S
35 SIGNAL GROUND
CONNEXT INTERFACE
S
S
S
MAPMX INTERFACE
SIGNAL GROUND 27 34 SIGNAL GROUND
S S
(PFD1)
GSU 25
P252
GROUND 11
RS-232 TX 3
RS-232 RX 3
9
10
52
31
S
9
GNX 375 CONNECTED
TO GSU 25 #1 ONLY
S
SIGNAL GROUND
RS-232 IN 3
RS-232 OUT 3
P3751
P3752
2ND GDU 4XX
RS-232 IN 1 47
48
P4X02
8
RS-232 OUT 4
30 RS-232 IN 4
27
S
51 SIGNAL GROUNDSIGNAL GROUND
RS-232 OUT 1
CONNEXT INTERFACE
S
(TRAFFIC/WEATHER)
CONNEXT 57600 BAUD CONNEXT 57600
CONNEXT 57600 BAUD CONNEXT 57600
MAPMX MAPMX FORMAT 1
RS-232 IN 2 14
RS-232 OUT 2 30
SIGNAL GROUND 34
GARMIN GPS (NAV 1, LOW SPEED)
EFIS/AIRDATA FORMAT 1 (NAV 1, LOW SPEED)
GAMA FORMAT 1
EFIS/AIRDATA
TRANSPONDER FRMT 1
21 AIRCRAFT POWER
5
GNX
14/28 VDC
20 AIRCRAFT GROUND
41 AIRCRAFT GROUND
22
23
43
CONFIG MODULE DATA
CONFIG MODULE GND
CONFIG MODULE PWR
CONFIG MODULE
DATA YEL
GND
PWR
BLK
RED
1 CONFIG MODULE CLK
CLK WHT
(CONNECTOR BACKSHELL)
30 AIRCRAFT GROUND
44 AIRCRAFT POWER
38 POWER CONTROL
42 AIRCRAFT POWER
GROUND PIN 38 TO FORCE UNIT TO POWER ON
AUTOMATICALLY WHEN POWER IS APPLIED
15 REMOTE GO AROUND
OPTIONAL TO/GA BUTTON
N.O. PUSH TO GROUND
ANY SPARE INPUT DISCRETE
CONFIGURED FOR
"ACTIVE LOW" AND "AFCS TO/GA"
GEA 24 OR GSU 73
NOTE: EXAMPLE DPST SWITCH IS APEM 4743 SERIES
3RD GDU 4XX
RS-232 IN 1 47
48
P4X02
7
RS-232 OUT 5
29 RS-232 IN 5
27
S
50 SIGNAL GROUNDSIGNAL GROUND
RS-232 OUT 1
CONNEXT INTERFACE
S
(TRAFFIC/WEATHER)
CONNEXT 57600 BAUD CONNEXT 57600
NOTE: THIS INTERFACE EXAMPLE DRAWING IS NOT SUFFICIENT FOR INSTALLATION OF A
GNX 375 UNIT. PLEASE REFERENCE THE APPROPRIATE INSTALLATION DOCUMENTATION FO
R
THE GNX 375 FOR COMPREHENSIVE INSTALLATION AND CONFIGURATION INFORMATION.