Garmin GNC 420AW Installation Manual - page 6
Page ii
400W Series Installation Manual
Rev. E
190-00356-02
TABLE OF CONTENTS
PARAGRAPH PAGE
1.
GENERAL DESCRIPTION .........................................................................................................1-1
1.1
Introduction...................................................................................................................................1-1
1.2
Scope.............................................................................................................................................1-2
1.3
Equipment Description .................................................................................................................1-2
1.4
Technical Specifications ...............................................................................................................1-3
1.5
License Requirements .................................................................................................................1-11
1.6
Regulatory Compliance...............................................................................................................1-12
1.7
Database Options and Updates ...................................................................................................1-17
1.8
Fault Detection and Exclusion (FDE).........................................................................................1-17
1.9
Limited Warranty........................................................................................................................1-18
2.
INSTALLATION OVERVIEW....................................................................................................2-1
2.1
Introduction...................................................................................................................................2-1
2.2
Minimum System Configuration...................................................................................................2-1
2.3
External Sensors............................................................................................................................2-2
2.4
Antenna Considerations ................................................................................................................2-3
2.5
Mounting Considerations..............................................................................................................2-7
2.6
Cabling and Wiring Considerations............................................................................................2-11
2.7
Air Circulation and Cooling........................................................................................................2-11
2.8
Compass Safe Distance...............................................................................................................2-11
3.
INSTALLATION PROCEDURES...............................................................................................3-1
3.1
Unit and Accessories.....................................................................................................................3-1
3.2
Optional Accessories.....................................................................................................................3-2
3.3
Database Options ..........................................................................................................................3-3
3.4
Miscellaneous Options..................................................................................................................3-3
3.5
Optional Reference Material.........................................................................................................3-3
3.6
Installation Materials Required but Not Provided ........................................................................3-4
3.7
Special Tools Required .................................................................................................................3-5
3.8
Cable Installation ..........................................................................................................................3-6
3.9
Equipment Mounting ....................................................................................................................3-8
3.10
Antenna Installation and Connection............................................................................................3-9
3.11
Weight and Balance ....................................................................................................................3-10
3.12
Electrical Load Analysis .............................................................................................................3-11
3.13
AFMS Completion – Based on Autopilot Type..........................................................................3-12
4.
SYSTEM INTERCONNECTS .....................................................................................................4-1
4.1
Pin Function List...........................................................................................................................4-1
4.2
Power, Lighting, and Antennas.....................................................................................................4-5
4.3
Altitude Gray Code .......................................................................................................................4-6
4.4
Main Indicator...............................................................................................................................4-7
4.5
Annunciators/Switches..................................................................................................................4-9