Garmin GPS 400W, Installation Manual

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Page 5-14 GNS 400W Series Installation Manual
Rev. G 190-00356-08
5.3.9 MAIN DISCRETE INPUTS Page
NOTE
The discrete inputs displayed on the page are dependent on the unit configuration and
settings. See Section 5.3.3.
Select the MAIN DISCRETE INPUTS Page. Figure 5-14 shows the discrete inputs with the airframe
configured for Fixed Wing. Figure 5-14a shows the discrete inputs with the airframe configure for
helicopter and includes the HTAWS inputs.
GRAY CODE
If the encoding altimeter input is used, verify that the
DECODED ALTITUDE field indicates the correct
altitude.
EXTERNAL SWITCH STATE
This allows you to verify the operation of any external
switches that are present in the installation.
Selection Verify That:
RMT OBS
The box is filled in while a remote OBS switch is pressed.
RMT CDI
The box is filled in while a remote CDI source select switch is pressed.
RMT RCL The box is filled in while the COM remote recall switch is pressed.
EXTERNAL SWITCH STATE (Helicopter with HTAWS Enabled)
This allows you to verify the operation of any external switches that are present in an HTAWS
installation. See Figure 5-14a.
Selection Verify That:
RMT OBS
The box is filled in while a remote OBS switch is pressed.
RMT RCL The box is filled in while the COM remote recall switch is pressed.
TER INHB The box is filled in while the Terrain Inhibit switch is pressed.
AUD INHB The box is filled in while the HTAWS Audio Inhibit input is pulled low.
AUR SUPR The box is filled in while the Aural Suppression switch is pressed.
RP MODE The box is filled in while the RP Mode switch is pressed.
AIR/GRND The box is filled in when the Air/Ground switch is in use.
Figure 5-14. MAIN DISCRETE INPUTS Page
Figure 5-14a. MAIN DISCRETE INPUTS Page
(Helicopter with HTAWS)