Configuration Module; Usb Interface; Table 5-17 Configuration Module Inputs And Outputs; Table 5-18 Usb Inputs And Outputs - Garmin GTX 3X5 Series Installation Manual

5.12 Configuration Module

The configuration module interface is used for connection to either a configuration module or an optional GAE
module.
The configuration and GAE module kits include a wire harness for connection to the GTX 3X5 D-sub connector.
Connect using The wire colors are shown in table 5-17.
The configuration module stores the specified aircraft installation configuration settings.
The optional GAE module is used to provide the pressure altitude for the transponder. The GAE module also includes
configuration memory function to store the installation configuration. When used, A separate configuration module is
not necessary.
ALT ENCODER/CONFIG MODULE CLOCK
ALT ENCODER/CONFIG MODULE DATA
ALT ENCODER/CONFIG MODULE POWER
ALT ENCODER/CONFIG MODULE GROUND

5.13 USB Interface

CAUTION
USE THE USB CABLE SHIPPED WITH THE UNIT. DO NOT LENGTHEN OR TIE UP IN BUNDLES WITH OTHER
ELECTRICAL WIRES. POTENTIAL DAMAGE OR INTERFERENCE DUE TO COUPLING WITH OTHER CABLES
WILL OCCUR.
Only use the USB interface for unit configuration, software updates, and service while the aircraft is on the ground. Do
not use during normal operation or when airborne.
USB DATA HI
USB DATA LO
USB VBUS POWER
USB GND
190-01499-02
Rev. 9

Table 5-17 Configuration Module Inputs and Outputs

Pin Name

Table 5-18 USB Inputs and Outputs

Pin Name
Connector Pinout Information
Color Connector
White P3251
Yellow P3251
Red P3251
Black P3251
Connector
P3251
P3251
P3251
P3251
GTX 3X5 Transponder TSO Installation Manual
Pin I/O
1 O
22 I/O
43 O
23 O
Pin I/O
2 I/O
24 I/O
44 I
45 O
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