Rev. AV Page 24-49
1CAN-H
2CAN-L
GDU4XX
4RS-232 TX*
5 RS-232 RX*
4RS-232 RX 1
5RS-232 TX 1
37RS-232 RX 2
57RS-232 RX 1
38RS-232 TX 1
GDU 4XX
48
RS-232 TX 1
47
RS-232 RX 1
34 RS-232 SG56RS-232 SG 1
1CAN-H
2CAN-L
S
S
J4X01
J402
S
S
GSU 25
GI 275
J251
J251
*OR ANY AVAILABLE
RS-232 PORT ON
GDU -02 CONNECTOR
CONFIGURATION GUIDANCE
1. GI 275 (SW V2.53+ REQUIRED)
A. ON THE INTERFACES CONFIGURATION MENU
SET PFD SYNC TO THE CONNECTED RS-232 PORT
B. IN SETUP, AIRFRAME CONFIGURATION, SET ALTITUDE BUG TO ENABLED, SET AIRSPEED BUG TO DISABLED
C. IF CONNECTION TO GSU IS USED, UNDER INTERFACES:
SET AHRS to GSU 25, RS232 RX 2
SET ADC to GSU 25, RS232 RX 2
2. G3X TOUCH
A. ON THE GDU 4XX RS-232 CONFIG MODE PAGE
CONNECTION FROM GDU 4XX TO GI 275 IS REQUIRED. SET THE CONNECTED GDU 4XX RS-232 CHANNEL TO
“GARMIN INSTRUMENT DATA"
CONNECTION FROM GSU 25 SERIAL PORT TO GI 275 IS OPTIONAL. IF THIS CONNECTION IS MADE, MISCOMPARISON
ALERTS WILL BE DISPLAYED ON GI 275 IF THE G3X TOUCH ADAHRS AND THE GI 275 DISAGREE IN ATTTITUDE OR
AIRSPEED. IF THIS CONNECTION IS NOT MADE, NO MISCOMPARISONS WILL BE MADE.
ANY RS-232 PORT ON THE GDU P4X01 OR P4X02 CONNECTOR CAN BE USED FOR EITHER CONNECTION. BOTH
CONNECTIONS WILL BE SET TO "GARMIN INSTRUMENT DATA". IF P4X01 IS USED FOR EITHER CONNECTION, NO
CONFIGURATION IS NECESSARY. IF P4X02 IS USED, SET TO GARMIN INSTRUMENT DATA
THIS INTERFACE EXAMPLE DRAWING IS NOT SUFFICIENT FOR INSTALLATION OF A GI 275 SERIES PRODUCT. PLEASE REFERENCE THE APPROPRIATE
INSTALLATION DOCUMENTATION FOR THE GI 275 SERIES UNIT FOR COMPREHENSIVE INSTALLATION AND CONFIGURATION INFORMATION.
NOTE: A GI 275 CANNOT BE CONNECTED TO A G3X TOUCH SYSTEM IF A G5 IS PRESENT ON THE CAN BUS.
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