Figure 3-27 - Interfacem; Figure 3-28 - Interfacem; Function Display - Page - Garmin GNS 480 Installation Manual

3.3.1.2 Input Monitor Function
The Input Monitor Function monitors the external inputs to the GNS 480 and displays the data currently
being received. Press the INPUT smart key in the Ground Maintenance mode to reach the Interface
Monitor Function, as shown in Figure 3-27. The display will show the status of the connected interfaces.
Figure 3-27 - Interface Monitor Function Display - Page 1
This page displays activity on each of the ARINC 429 inputs, and the state of each of the discrete inputs.
Press the NEXT line select key to show the next page, which is shown in Figure 3-28.
Figure 3-28 - Interface Monitor Function Display - Page 2
This page displays activity on each of the serial inputs, and allows the serial data that is being received
on a particular input to be monitored. Turn the large, outer knob to select the input to be monitored. The
currently selected serial channel is indicated with a green background. The window on the lower half of
the screen displays the last 100 characters that have been received. To stop the update of the data in the
window press the PAUSE line select key, which will then become the RUN line select key. To start the
update of the data press the RUN line select key.
Press the NEXT line select key to show the next page, which is shown in Figure 3-29.
GNS 480 (CNX80) Installation Manual560-0982-01 Rev A
Post-Installation Configuration & Checkout
3-27