Gray Code Input Page; External Switch State Page; Analog Input Page - Garmin GTX 330 Installation Manual

5.2.14

GRAY CODE INPUT Page

GRAY CODE
This field shows the status (1 = ground, 0 = open) of each of the ten gray code altitude inputs. This information
may aid in installation troubleshooting. This page is not used in systems that contain serial altitude input.
DECODED ALTITUDE
This field displays the gray code altitude input in feet. Verify that it is the correct altitude.
5.2.15

EXTERNAL SWITCH STATE Page

IDENT
This field displays the state of the EXTERNAL IDENT discrete input. The box is filled when EXTERNAL
IDENT is grounded.
STANDBY
This field displays the state of the EXTERNAL STANDBY discrete input. The box is filled when EXTERNAL
STANDBY is grounded. If EXTERNAL STANDBY is active during power-up, the word FAIL appears on the
screen after 30 seconds.
SQUAT
This field displays the state of the SQUAT SWITCH input. The box is filled when the SQUAT SWITCH input is
active (the aircraft is on the ground as configured on the SETUP 2 page).
5.2.16

ANALOG INPUT Page

The Analog to Digital Converter counts are shown on the display,
providing troubleshooting data.
14/5V LTG
This field displays the input level of the 14/5 V lighting bus.
PHOTO
This field displays the input level of the photocell.
LCD TEMP
This field displays the input level of the LCD temperature sensor.
28V LTG
This field displays the input level of the 28 V lighting bus.
GTX 330 Installation Manual
190-00207-02
GRAY CODE INPUT Page
EXTERNAL SWITCH Page
ANALOG INPUT Page
Page 5-17
Rev E