Garmin GNS 480, Инструкция по установке

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Post-Installation Configuration & Checkout
3-36 560-0982-01 Rev L GNS 480 (CNX80) Installation Manual
3.3.2.4.3 Air Data Computer, Altitude Encoder,Fuel Sensor and Fuel Air/Data Computer
The GNS 480 can receive altitude or fuel/air data from an external source. This check verifies that the
GNS 480 is receiving data from these units. Ensure that the GNS 480 and MX20/GMX 200 are turned on
and in normal mode. If the following steps do not perform correctly, check the electrical connections and
configuration setup.
NOTE
For dual GNS 480 installations, this check must be performed for each GNS 480. While
this check is carried out, the other GNS 480 must be turned off.
3. Press the
MAP
bezel key and use the large, outer knob to select MAP 2.
4. Press the
MENU/ENTER
key to display the line select key functions, and repeatedly press the
MORE
line select key until the
NAV DATA
line select key legend is displayed.
5. Press the
NAV DATA
line select key to display nav data in the window on the left.
6. The ALT field will display the baro-corrected altitude. If the ALT field is not displayed, press the
SEL DATA
line select key and use the small, inner knob to select the ALT field for display and press
MENU/ENTER
when the appropriate field is selected. Verify that this altitude value is not dashed
out, and that the altitude agrees with the altimeter (
±
125 ft).
NOTE
The baro-correction that is set on the altimeter and GNS 480 must be the same in order for
the displayed altitude values to agree.
7. If fuel data is being provided to the GNS 480, press the
MENU/ENTER
key to display the line select
key functions, and repeatedly press the
MORE
line select key until the
NAV DATA
line select key
legend is displayed.
8. Press the
SEL DATA
line select key and use the use the small, inner knob to select the FUEL FLOW
field for display and press
MENU/ENTER
when the appropriate field is selected. Verify that this fuel
flow value is not dashed out, and that the fuel flow agrees with the corresponding instrument.
3.3.2.4.4 MX20/GMX 200 Display Checkout
The GNS 480 can transmit flight plan data to the MX20/GMX 200 (and baro-correction if the GNS 480 is
receiving baro-correction from an altimeter). If the MAPMX interface is used, the MX20/GMX 200 can
transmit baro-correction to the GNS 480. This check verifies that the units are communicating. Ensure
that the GNS 480 and MX20/GMX 200 are turned on and in normal mode. If the following steps do not
perform correctly, check the electrical connections and configuration setup.
NOTE
When connecting a GNS 480 to the MX20/GMX 200 the recommended interface protocol
is bi-directional MAPMX, since additional functionality is provided. The MAPMX
protocol is only supported in MX20 version 5.0 or later. If it is desired to use a version
4.x or earlier MX20, the interface should be set to MAPCOM (this is a
uni-directional interface, and data is only provided from the GNS 480 to the MX20/GMX
200).
MAPCOM Interface (use only for MX20 version 4.x or earlier):
1. Check the System Info page on the MX20 to verify that the data is available to each port and that it is
being processed properly.
2. Load a flight plan into the GNS 480 and verify that the flight plan is displayed on the MX20 on the
FPL page.