Garmin GEA 71 Manuale utente

190-00303-40 June, 2010 Revision F

GEA 71

Installation Manual

Page A GEA 71 Installation Manual

Revision F 190-00303-40

Garmin Ltd. or its subsidiaries

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: 913-397-8200

Aviation Dealer Technical Support Line (Toll Free): (888) 606-5482

www.garmin.com

Garmin (Europe) Ltd.

Liberty House, Bulls Copse Road

Hounsdown Business Park

Southampton, SO40 9RB U.K.

Telephone: +44/ (0) 870.8501241

RECORD OF REVISIONS

Revision Revision

Date Description

A 03/16/04 Production Release

B 09/19/06 Revised to conform to standard, updated manual

C 12/03/07 Updated Mod Level Table

D 06/25/08 Added caution regarding handle screw torque

E 03/11/09 Corrected listed unit and rack weights

F 6/1/10 Changed pins to RESERVED

GEA 71 Installation Manual Page i

190-00303-40 Revision F

CURRENT REVISION DESCRIPTION

Revision Page

Number(s) Section

Number Description of Change

1-1 1.3 Changed number of Discrete Annunciator Outputs

to “4”

1-6 1.7 Updated warranty statement

2-1 2.1 Updated AC reference

4-3 4.1.2 Changed pins to RESERVED

DOCUMENT PAGINATION

Section Page Range

Table of Contents i – vi

Section 1 1-1 – 1-6

Section 2 2-1 – 2-4

Section 3 3-1 – 3-4

Section 4 4-1 – 4-8

Appendix A A-1 – A-4

Appendix B B-1 – B-4

Page ii GEA 71 Installation Manual

Revision F 190-00303-40

This manual reflects the operation of software version 2.07. Some differences in operation may be

observed when comparing the information in this manual to earlier or later 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. The preceding statement is required to be included on any and all reproductions

in whole or in part of this manual.

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.

WARNING

GEA 71 Installation Manual Page iii

190-00303-40 Revision F

TABLE OF CONTENTS

PARAGRAPH PAGE

1. GENERAL DESCRIPTION..............................................................................................................1-1

1.1 Introduction........................................................................................................................................1-1

1.2 Equipment Description......................................................................................................................1-1

1.3 Interface Summary.............................................................................................................................1-1

1.4 Reference Publications ......................................................................................................................1-1

1.5 Technical Specifications....................................................................................................................1-2

1.6 Certification.......................................................................................................................................1-3

1.7 Limited Warranty...............................................................................................................................1-6

2. INSTALLATION OVERVIEW........................................................................................................2-1

2.1 Introduction........................................................................................................................................2-1

2.2 Installation Materials .........................................................................................................................2-1

2.3 Interface Considerations....................................................................................................................2-2

2.4 Cabling and Wiring............................................................................................................................2-2

2.5 Cooling Air........................................................................................................................................2-2

2.6 Mounting Requirements ....................................................................................................................2-3

3. INSTALLATION PROCEDURE......................................................................................................3-1

3.1 Unpacking Unit..................................................................................................................................3-1

3.2 Wiring Harness Installation ...............................................................................................................3-1

3.3 Backshell Assembly and Installation.................................................................................................3-2

3.4 Thermocouple Installation.................................................................................................................3-2

3.5 Final Installation................................................................................................................................3-2

3.6 Post Installation Configuration and Checkout...................................................................................3-3

3.7 Continued Airworthiness...................................................................................................................3-3

4. SYSTEM INTERCONNECTS..........................................................................................................4-1

4.1 Pin Function List................................................................................................................................4-1

4.2 Electrical Characteristics ...................................................................................................................4-5

APPENDIX A OUTLINE AND INSTALLATION DRAWINGS

APPENDIX B INTERCONNECT EXAMPLES

Page iv GEA 71 Installation Manual

Revision F 190-00303-40

LIST OF ILLUSTRATIONS

FIGURE PAGE

2-1 GEA 71 Unit Rack.............................................................................................................................2-3

3-1 Thermocouple Installation.................................................................................................................3-3

4-1 RTD Daisy-Chain Interconnect Example..........................................................................................4-6

A-1 GEA 71 Outline Drawing.................................................................................................................A-1

A-2 GEA 71 Installation Drawing...........................................................................................................A-3

B-1 GEA 71 Example Interconnect.........................................................................................................B-1

LIST OF TABLES

TABLE PAGE

2-1 Typical Engine/Airframe Sensors......................................................................................................2-2

3-1 Pin Contact Part Numbers..................................................................................................................3-1

3-2 Recommended Crimp Tools..............................................................................................................3-1

3-3 Backshell Installation Instruction Documents ...................................................................................3-2

3-3 Thermocouple Kit (011-00981-00)....................................................................................................3-2

4-1 Analog Input Configuration Summary ..............................................................................................4-5

GEA 71 Installation Manual Page v

190-00303-40 Revision F

GEA 71 HARDWARE MOD LEVEL HISTORY

The following table identifies hardware modification (Mod) Levels for the GEA 71 LRU. Mod Levels

are listed with the associated service bulletin number, service bulletin date, and the purpose of the

modification. The table is current at the time of publication of this manual (see date on front cover) and is

subject to change without notice. Authorized Garmin Sales and Service Centers are encouraged to access

the most up-to-date bulletin and advisory information on the Garmin Dealer Resource web site at

www.garmin.com using their Garmin-provided user name and password.

MOD

LEVEL SERVICE

BULLETIN

NUMBER

SERVICE

BULLETIN

DATE

PURPOSE OF MODIFICATION

1 N/A N/A Improve ability to interface with ungrounded

thermocouples

2 N/A N/A Improve performance when 5 or more constant

current source outputs are enabled

Page vi GEA 71 Installation Manual

Revision F 190-00303-40

This page intentionally left blank

GEA 71 Installation Manual Page 1-1

190-00303-40 Revision F

1 GENERAL DESCRIPTION

1.1 Introduction

This manual presents mechanical and electrical installation requirements for installing the GEA 71 as part

of the Garmin Integrated Flight Deck. The GEA 71 can be integrated into a variety of airframes under an

appropriate TC or STC. Each installation may vary. Use only approved (type or supplemental type) data

for specific installation instructions in a particular aircraft.

1.2 Equipment Description

The GEA 71 is a micro-processor based input/output Line Replaceable Unit (LRU) used to monitor

sensor inputs and drive annunciator outputs for aircraft airframe and engine systems. The GEA 71

interfaces with various sensors on the aircraft and communicates airframe and engine information via

RS-485 digital interface to GIA 63(W) Integrated Avionics Units or IAUs. The GIAs then interface with

the GDU Primary Flight Display(s) (PFD) and Multi-Function Display (MFD). Typically, the MFD

shows engine instrumentation while the PFD normally shows airframe alerts provided by the GEA 71.

Engine/airframe instrumentation is also displayed on the PFD and/or MFD while the system is in

reversionary mode. The PFD and MFD displays serve as the user interface for the GEA 71. All

configuration settings are controlled via software settings accessed by the MFD and PFD displays.

The GEA 71 uses a configuration module temperature sensor and a thermocouple sensor housed in a

backshell assembly to monitor backshell junction temperatures. This capability is only needed in the

event thermocouple engine temperature sensors are used.

1.3 Interface Summary

The following list is an interface summary for the GEA 71 unit:

•18 Analog Inputs (all differential inputs; 4 inputs are current monitor capable, see Section 4)

•12 Engine Temperature Analog Inputs (differential inputs)

•23 Discrete Inputs

•12 Digital Inputs*

•4 Discrete Annunciate Outputs

•2 RS-485 channels that interface to GIA 63 IAUs

•Software & Configuration data input from a Garmin Integrated Flight Deck

•Aircraft Power Input (Power-on controlled by aircraft avionics power bus)

*Note that all digital inputs can also be configured as discrete inputs if desired.

Page 1-2 GEA 71 Installation Manual

Revision F 190-00303-40

1.4 Technical Specifications

It is the responsibility of the installing agency to obtain the latest revision of the GEA 71 Environmental

Qualification Form. This form is available directly from Garmin under the following part number:

GEA 71 Environmental Qualification Form, Garmin part number 005-00147-02

To obtain a copy of this form, see the dealer/OEM portion of the Garmin web site (www.garmin.com).

1.4.1 Physical Characteristics

Characteristic Specification

Width (w/ Rack) 1.23 inches (3.12 cm)

Height (w/ Rack) 6.30 inches (16.0 cm)

Depth (Rack w/ Connectors) 8.73 inches (22.17 cm)

Unit Weight 1.75 lbs (0.79 kg)

Rack, Nutplate, & Connector Kit Weight 0.83 lbs (0.38 kg)

1.4.2 Power Requirements

Characteristic Specification

Input Voltage 14/28 Vdc See the Environmental Qualification Form for

details on surge ratings and minimum/maximum operating

voltages.

Unit Status Max Current @ 28 Vdc Max Current @ 14 Vdc

(Optional)

Off 0.01 A 0.01 A

On 0.15 A 0.30 A

On* 0.50 A 1.00 A

*Full Load On Transducer Power Outputs.

During the first five seconds of unit power-up, current is slightly higher due to backup

capacitors being charged. Estimate initial power-up current to be ~50 mA @ 28 Vdc

higher or ~100 mA @ 14 Vdc higher than the above figures.

1.5 Reference Documents

The following publications are sources of additional information for installing the GEA 71. Before

installing the GEA 71, the technician should read all referenced materials along with this manual.

Part Number Document

190-00303-00 G1000 System Installation Manual

190-00303-04 G1000 Line Maintenance and Configuration Manual

NOTE

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