Figure 5-5. Main Inputs 1 Page; Figure 5-6. Main Inputs 2 Page; Figure 5-7. Instrument Panel Self Test Page - Garmin GNC 420A Installation Manual

5.2.4 MAIN INPUTS 1 Page
Select the MAIN INPUTS 1 Page (see Figure 5-5). This
page (along with the MAIN INPUTS 2 Page) allows you
to monitor the data on ARINC 429, RS-232 and other
electrical inputs. This is used for verifying electrical
interfaces during installation and troubleshooting.
Information that is not being received by the 400 Series
unit is dashed out.
Field Description
Outside Air Temperature
OAT
SAT Static Air Temperature
TAT Total Air Temperature
IAS Indicated Airspeed
TAS True Airspeed
WSPD Wind Speed
HDG Heading (True or Magnetic)
WDIR Wind Direction
B ALT Barometric-corrected Altitude
D ALT Density Altitude
P ALT Pressure Altitude
5.2.5 MAIN INPUTS 2 Page
Select the MAIN INPUTS 2 Page (see Figure 5-6). This
page is also used for verifying electrical interfaces during
installation and troubleshooting. Information that is not
being received by the 400 Series unit is dashed out.
Field Description
L FF Left Engine Fuel Flow
Right Engine Fuel Flow
R FF
T FF Total Fuel Flow
T FOB Total Fuel on Board
GPS Selected Course
GPS SC
VLC SC VOR/LOC Selected Course
(GNS 430 Only)
CDI Status of the CDI key
(GNS 430 Only)
JOYSTICK Latitude and longitude of a
WPT joystick waypoint sent by an
EFIS or RADAR indicator.
5.2.6 INSTRUMENT PANEL SELF-TEST Page
Select the INSTRUMENT PANEL SELF-TEST Page (see
Figure 5-7). This page allows verification that the 400 Series
unit is communicating properly with other instruments.
Compare on-screen indications with the information depicted
on connected instruments, such as the CDI, HSI, RMI and/or
external annunciators. It also displays fuel capacity, amount
on-board, and flow.
Page 5-6
Rev Q

Figure 5-5. MAIN INPUTS 1 Page

Figure 5-6. MAIN INPUTS 2 Page

Figure 5-7. INSTRUMENT PANEL
SELF-TEST Page
400 SERIES INSTALLATION MANUAL
190-00140-02