Garmin GPS 400W User manual

190-00356-02 December 2008 Rev. G
400W SERIES
INSTALLATION MANUAL
GPS 400W, GNC TM 420W/420AW, and GNS TM 430W/430AW
GNC and GNS are trademarks of Garmin Ltd. or its subsidiaries and may not be
used without the express permission of Garmin.
Garmin International, Inc.

400W Series Installation Manual
190-00356-02 Rev. G

400W Series Installation Manual Page A
190-00356-02 Rev. G
© Copyright 2006-2008
Garmin Ltd. or its subsidiaries
All Rights Reserved
Except as expressly provided herein, no part of this manual may be reproduced, copied, transmitted,
disseminated, downloaded or stored in any storage medium, for any purpose without the express prior
written consent of Garmin. Garmin hereby grants permission to download a single copy of this manual
and of any revision to this manual onto a hard drive or other electronic storage medium to be viewed and
to print one copy of this manual or of any revision hereto, provided that such electronic or printed copy of
this manual or revision must contain the complete text of this copyright notice and provided further that
any unauthorized commercial distribution of this manual or any revision hereto is strictly prohibited.
Garmin International, Inc.
1200 E. 151st Street
Olathe, KS 66062 USA
Telephone: [phone]
Aviation Panel-Mount Technical Support Line (Toll Free): 1-888-606-5482
Web Site Address: www.garmin.com
Garmin (Europe) Ltd.
Liberty House
Bull Copse Road
Hounsdown Business Park
Southampton, SO40 9RB, UK
Telephone: [phone]
RECORD OF REVISIONS
Revision Revision
Date Description
A 11/2/06 Production Release
B 11/28/06 Added GA 35 antenna information and corrected wire gauge for
main connector power.
C 4/5/07 Incorporated customer feedback.
D 10/1/07 Incorporated main software version 3.00 and GPS/WAAS
software version 3.0. Added GA 36, GA 37 and several other
non-Garmin antennas. Changed GPS antenna cable loss
requirements. Added interface interconnects to equipment,
including several autopilots, Century AK 1081 GPSS converter,
ACK Technologies altitude encoder and Avidyne PFD/MFD.
Added GPS vertical guidance display for EFIS 40/50. Added
COM remote discrete.
E 3/25/08 Incorporated main software version 3.10 changes. Added ETSO
authorizations, ETSO deviations, and FCC ID information.
Added interface interconnects to Cessna IFCS and Bendix M4
autopilots, and Collins DME 42. Clarified requirements for
approving interfaces to autopilot, audio panel, air data
computers and altitude encoders/serializers.
F 10/7/08 Addition of GAD 42, G600, and v3.10 changes
G 12/16/08 Software version 3.20 changes.

Page B 400W Series Installation Manual
Rev. G 190-00356-02
CURRENT REVISION DESCRIPTION
Revision Page
Number(s)
Section
Number Description of Change
i TOC Changed software version from 3.10 to 3.20
1-18 1.9 Updated contact phone number for Garmin (Europe) Ltd.
3-12 3.13.1 Corrected formatting of Table 3-7.
4-13 4.6.1.2
Added note to indicate that additional output settings may be available
on unit installed via OEM TC.
5-4 5.3.1
Added note to indicate that additional output settings may be available
on unit installed via OEM TC.
5-7 5.3.1
Added ADS-B OUT to Channel Outputs table. Also added note [4] to
indicate the ADS-B OUT is only available with main software version
3.20 or later.
5-15 5.3.11 Added table with information for V-Flag State
5-22 5.3.20
Added note to explain steps that need to be taken to display an
alternate traffic color.
5-41 Checkout Log Added V-Flag State to Main CDI/OBS Configuration section.
6-6 6.2
Added ‘check GPS Antenna’ to the Alert Text ‘GPS is not responding’
in Table 6-2.
H-51 Appendix H
Updated Figure H-32 to include note that the ILS/GPS approach
discrete is required by some CDIs/HSIs that are used with the M4C/D
Autopilots.
G
H-55 Appendix H
Updated Figure H-35 to include note that the low level flags or
superflags can be connected, but not both.
DOCUMENT PAGINATION
Section Pagination
Table of Contents i – viii
Section 1 1-1 through 1-18
Section 2 2-1 through 2-14
Section 3 3-1 through 3-14
Section 4 4-1 through 4-22
Section 5 5-1 through 5-44
Section 6 6-1 through 6-10
Section 7 7-1 through 7-4
Section 8 8-1 through 8-2
Appendix A A-1 through A-2
Appendix B B-1 through B-2
Appendix C C-1 through C-2
Appendix D D-1 through D-4
Appendix E E-1 through E-6
Appendix F F-1 through F-8
Appendix G G-1 through G-8
Appendix H H-1 through H-58

400W Series Installation Manual Page i
190-00356-02 Rev. G
This manual reflects the operation of main software version 3.20. Some differences in operation may be
observed when comparing the information in this manual to other software versions.
INFORMATION SUBJECT TO EXPORT CONTROL LAWS
This document may contain information which is subject to the Export Administration Regulations
("EAR") issued by the United States Department of Commerce (15 CFR, Chapter VII, Subchapter C) and
which may not be exported, released, or disclosed to foreign nationals inside or outside of the United
States without first obtaining an export license. A violation of the EAR may be subject to a penalty of up
to 10 years imprisonment and a fine of up to $1,000,000 under Section 2410 of the Export Administration
Act of 1979. Include this notice with any reproduced portion of this document.
WARNING
This product, its packaging, and its components contain chemicals known to the State of
California to cause cancer, birth defects, or reproductive harm. This Notice is being
provided in accordance with California's Proposition 65. If you have any questions or
would like additional information, please refer to our web site at
www.garmin.com/prop65
Perchlorate Material – special handling may apply, see
www.dtsc.ca.gov/hazardouswaste/perchlorate/
WARNING
This product contains a Lithium battery that must be recycled or disposed of properly.
Battery replacement and removal must be performed by professional services.
Lamp(s) inside this product contains mercury and must be recycled or disposed of
according to local, state, or federal laws.
For more information go to:
www.garmin.com/aboutGarmin/environment/disposal.jsp.
Hg

Page ii 400W Series Installation Manual
Rev. G 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
1.4.1 Physical Characteristics........................................................................................................1-3
1.4.2 General Specifications..........................................................................................................1-4
1.4.3 GPS Specifications...............................................................................................................1-5
1.4.4 COM Transceiver Specifications (GNC 420W and GNS 430W Only) ** ..........................1-6
1.4.5 VOR Specifications (GNS 430W Only) ..............................................................................1-7
1.4.6 LOC Specifications (GNS 430W Only)...............................................................................1-7
1.4.7 Glideslope Specifications (GNS 430W Only) .....................................................................1-8
1.4.8 GPS Antenna Requirements.................................................................................................1-9
1.5 License Requirements.................................................................................................................1-11
1.6 Regulatory Compliance ..............................................................................................................1-12
1.6.1 TSO Authorization and Advisory Circular Reference .......................................................1-12
1.6.2 TSO Deviations..................................................................................................................1-14
1.6.3 ETSO Authorization...........................................................................................................1-15
1.6.4 ETSO Deviations ...............................................................................................................1-16
1.6.5 FCC Grant of Equipment Authorization ............................................................................1-16
1.7 Database Options and Updates ................................................................................................... 1-17
1.7.1 Aviation Database ..............................................................................................................1-17
1.7.2 Terrain Database ................................................................................................................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
2.2.1 VFR Installation ...................................................................................................................2-1
2.2.2 IFR GPS Installation ............................................................................................................2-1
2.2.3 IFR VOR/LOC/GS Installation............................................................................................2-2
2.3 External Sensors ...........................................................................................................................2-2
2.3.1 Multiple Uncorrected Pressure Altitude Sources .................................................................2-2
2.3.2 Multiple Baro-Corrected Altitude Sources...........................................................................2-2
2.3.3 Multiple Heading Sources....................................................................................................2-3
2.4 Antenna Considerations................................................................................................................2-3

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2.4.1 GPS Antenna Location.........................................................................................................2-3
2.4.2 COM Antenna Location.......................................................................................................2-4
2.4.3 VOR/LOC Antenna Location...............................................................................................2-6
2.4.4 Glideslope Antenna Location...............................................................................................2-6
2.4.5 Electrical Bonding................................................................................................................2-6
2.4.6 Interference of GPS..............................................................................................................2-6
2.4.7 COM, VOR/LOC, and Glideslope Antenna Installation Instructions..................................2-6
2.5 Mounting Considerations..............................................................................................................2-7
2.5.1 Determination of Acceptable Field-of-View........................................................................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
2.9 Installation Approval Considerations .........................................................................................2-12
2.9.1 Autopilot Interface Approval .............................................................................................2-12
2.9.2 Altitude Encoder/Air Data Computer Interface Approval .................................................2-12
2.9.3 Audio Panel Interface Approval.........................................................................................2-13
3. INSTALLATION PROCEDURES...............................................................................................3-1
3.1 Unit and Accessories.....................................................................................................................3-1
3.2 Optional Accessories ....................................................................................................................3-2
3.2.1 GPS Antenna Options ..........................................................................................................3-2
3.2.2 GPS Antenna Doubler..........................................................................................................3-3
3.2.3 Other Accessories.................................................................................................................3-3
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
3.6.1 Optional Accessories Not Supplied (GNC 420W and GNS 430W Only) ...........................3-4
3.6.2 Materials Required But Not Supplied (New Installations Only) .........................................3-4
3.7 Special Tools Required.................................................................................................................3-5
3.8 Cable Installation ..........................................................................................................................3-6
3.9 Equipment Mounting ....................................................................................................................3-8
3.9.1 Rack Installation...................................................................................................................3-8
3.9.2 400W Series Unit Insertion and Removal............................................................................3-8
3.9.3 Unit Replacement.................................................................................................................3-8
3.10 Antenna Installation and Connection............................................................................................ 3-9
3.10.1 GPS Antenna....................................................................................................................3-9
3.10.2 COM Antenna................................................................................................................3-10
3.10.3 NAV Antenna ................................................................................................................3-10

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3.11 Weight and Balance ....................................................................................................................3-10
3.12 Electrical Load Analysis .............................................................................................................3-11
3.13 AFMS Completion – Based on Autopilot Type .........................................................................3-12
3.13.1 Autopilot Listed in 400W/500W Series AML STC ......................................................3-12
3.13.2 Autopilot Not Listed in 400W/500W Series AML STC ...............................................3-13
4. SYSTEM INTERCONNECTS.....................................................................................................4-1
4.1 Pin Function List...........................................................................................................................4-1
4.1.1 P4001 Main Connector ........................................................................................................4-1
4.1.2 P4002 COM Connector (GNC 420W and GNS 430W Only)..............................................4-3
4.1.3 P4006 NAV Connector (GNS 430W Only).........................................................................4-4
4.2 Power, Lighting, and Antennas.....................................................................................................4-5
4.2.1 Power....................................................................................................................................4-5
4.2.2 Lighting Bus.........................................................................................................................4-5
4.2.3 Antennas...............................................................................................................................4-5
4.3 Altitude Gray Code.......................................................................................................................4-6
4.4 Main Indicator...............................................................................................................................4-7
4.4.1 Main Indicator Function.......................................................................................................4-7
4.4.2 Main Indicator Electrical Characteristics .............................................................................4-7
4.4.3 Main Indicator Configuration ..............................................................................................4-8
4.4.4 Main Indicator Calibration and Checkout............................................................................4-8
4.4.5 Main Indicator Interconnect.................................................................................................4-8
4.5 Annunciators/Switches .................................................................................................................4-9
4.5.1 Annunciators/Switches Function..........................................................................................4-9
4.5.2 Annunciators/Switches Electrical Characteristics..............................................................4-11
4.5.3 Annunciators/Switches Configuration ...............................................................................4-11
4.5.4 Annunciators/Switches Calibration and Checkout.............................................................4-11
4.5.5 Annunciators/Switches Interconnect..................................................................................4-11
4.6 Serial Data...................................................................................................................................4-12
4.6.1 Serial Data Function...........................................................................................................4-12
4.6.2 Serial Data Electrical Characteristics .................................................................................4-15
4.6.3 Serial Data Configuration...................................................................................................4-15
4.6.4 Serial Data Calibration and Checkout................................................................................4-15
4.6.5 Serial Data Interconnects ...................................................................................................4-15
4.7 COM/VOR/ILS Audio (GNC 420W and GNS 430W only) ......................................................4-16
4.7.1 COM/VOR/ILS Audio Function........................................................................................4-16
4.7.2 COM/VOR/ILS Audio Electrical Characteristics ..............................................................4-16
4.7.3 COM/VOR/ILS Audio Configuration................................................................................4-17
4.7.4 COM/VOR/ILS Audio Calibration and Checkout .............................................................4-17

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4.7.5 COM/VOR/ILS Audio Interconnect ..................................................................................4-17
4.8 VOR/ILS Indicator (GNS 430W Only) ......................................................................................4-18
4.8.1 VOR/ILS Indicator Function..............................................................................................4-18
4.8.2 VOR/ILS Indicator Electrical Characteristics....................................................................4-18
4.8.3 VOR/ILS Indicator Configuration .....................................................................................4-19
4.8.4 VOR/ILS Indicator Calibration and Checkout...................................................................4-19
4.8.5 VOR/ILS Indicator Interconnect........................................................................................4-19
4.9 RMI/OBI.....................................................................................................................................4-20
4.9.1 RMI/OBI Function .............................................................................................................4-20
4.9.2 RMI/OBI Electrical Characteristics ...................................................................................4-20
4.9.3 RMI/OBI Configuration.....................................................................................................4-20
4.9.4 RMI/OBI Calibration and Checkout ..................................................................................4-20
4.9.5 RMI/OBI Interconnect .......................................................................................................4-20
4.10 DME Tuning (GNS 430W Only)................................................................................................4-21
4.10.1 DME Tuning Function...................................................................................................4-21
4.10.2 DME Tuning Electrical Characteristics .........................................................................4-21
4.10.3 DME Tuning Configuration...........................................................................................4-22
4.10.4 DME Tuning Calibration and Checkout........................................................................4-22
4.10.5 DME Tuning Interconnect References ..........................................................................4-22
5. POST INSTALLATION CONFIGURATION & CHECKOUT PROCEDURES .......................5-1
5.1 Mounting and Wiring Check ........................................................................................................5-1
5.2 Connector Engagement Check......................................................................................................5-1
5.3 Configuration Mode Operations ...................................................................................................5-1
5.3.1 MAIN ARINC 429 CONFIG Page ......................................................................................5-2
5.3.2 MAIN RS-232 CONFIG Page .............................................................................................5-5
5.3.3 MAIN SYSTEM CONFIG...................................................................................................5-8
5.3.4 MAIN INPUTS 1 Page ......................................................................................................5-10
5.3.5 MAIN INPUTS 2 Page ......................................................................................................5-10
5.3.6 INSTRUMENT PANEL SELF-TEST Page ......................................................................5-11
5.3.7 MAIN LIGHTING Page ....................................................................................................5-11
5.3.8 GPS DATE/TIME SETUP Page ........................................................................................5-12
5.3.9 MAIN DISCRETE INPUTS Page .....................................................................................5-13
5.3.10 MAIN DISCRETE OUTPUTS Page .............................................................................5-13
5.3.11 MAIN CDI/OBS CONFIG Page ...................................................................................5-14
5.3.12 COM SETUP Page (GNC 420W and GNS 430W Only) ..............................................5-16
5.3.13 VOR DISCRETE INPUTS Page (GNS 430W Only)....................................................5-17
5.3.14 VOR/LOC/GS CDI Page (GNS 430W Only)................................................................5-17

Page vi 400W Series Installation Manual
Rev. G 190-00356-02
5.3.15 VOR/LOC/GS ARINC 429 CONFIG Page (GNS 430W Only) ...................................5-19
5.3.16 GPS Vertical Offset .......................................................................................................5-20
5.3.17 STORMSCOPE CONFIG Page.....................................................................................5-21
5.3.18 STORMSCOPE TEST Page..........................................................................................5-21
5.3.19 STORMSCOPE DOWNLOAD DATA Page ................................................................5-21
5.3.20 TRAFFIC Page ..............................................................................................................5-22
5.3.21 RYAN TCAD CONFIG Page........................................................................................5-23
5.3.22 GAD 42 CONFIG Page .................................................................................................5-23
5.3.23 GDL CONFIG Page.......................................................................................................5-23
5.3.24 DATA LINK DIAGNOSTICS Page..............................................................................5-24
5.4 Ground Checks (Configuration Mode) .......................................................................................5-25
5.4.1 Main Indicator (Analog Only) ...........................................................................................5-25
5.4.2 VOR/ILS Indicator (GNS 430W Only) .............................................................................5-25
5.4.3 Discrete Inputs and Annunciator Outputs Checkout..........................................................5-25
5.4.4 ADC, Altitude Encoder, Fuel Sensor and Fuel/Air Data Computer ..................................5-26
5.4.5 Altitude Encoder (Gray Code Connection)........................................................................5-26
5.4.6 AHRS/IRU Interface Check...............................................................................................5-27
5.4.7 GAD 42 Interface Check....................................................................................................5-27
5.4.8 Lighting Bus Interface Check ............................................................................................5-27
5.5 Ground Checks (Normal Mode) .................................................................................................5-28
5.5.1 Display of Self-Test Data...................................................................................................5-28
5.5.2 Signal Acquisition Check...................................................................................................5-29
5.5.3 VHF COM Interference Check ..........................................................................................5-29
5.5.4 VHF NAV Checkout (GNS 430W) ...................................................................................5-31
5.5.5 VHF COM Checkout (GNC 420W/GNS 430W)...............................................................5-31
5.5.6 Interface Checkout .............................................................................................................5-31
5.5.7 Magnetic Compass Check..................................................................................................5-37
5.6 Flight Checks ..............................................................................................................................5-38
5.6.1 GPS Flight Check...............................................................................................................5-38
5.6.2 VHF COM Flight Check (GNC 420W and GNS 430W)...................................................5-38
5.6.3 VOR Flight Check (GNS 430W) .......................................................................................5-38
5.6.4 ILS Flight Check (GNS 430W)..........................................................................................5-39
5.6.5 Autopilot Flight Check.......................................................................................................5-39
5.7 Database Check...........................................................................................................................5-39
5.7.1 Data Card Replacement......................................................................................................5-39
5.8 Airplane Flight Manual Supplement Checks ..............................................................................5-40
6. TROUBLESHOOTING................................................................................................................ 6-1