Trig TN72 Manuale utente

TN72 TABS GPS Receiver

Installation Manual

01691-00-AG

5 January 2018

Trig Avionics Limited

Heriot Watt Research Park

Riccarton, Edinburgh

EH14 4AP

Scotland, UK

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TN72 TABS GPS Receiver Installation Manual 5 January 2018

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Trig Avionics Limited i

CONTENTS

1. PREFACE...............................................................................................1

1.1 PURPOSE...........................................................................................1

1.2 SCOPE...............................................................................................1

1.3 CHANGES FROM PREVIOUS ISSUE......................................................1

1.4 DOCUMENT CROSS-REFERENCES......................................................1

2. INTRODUCTION..................................................................................2

2.1 TN72 DESCRIPTION ..........................................................................2

2.2 INTERFACES......................................................................................2

3. TECHNICAL SPECIFICATIONS.......................................................3

3.1 TN72 GPS RECEIVER UNIT (01655-00)............................................3

3.2 INSTALLATION APPROVAL.................................................................3

3.3 INCOMPLETE TSO ARTICLE...............................................................4

4. UNIT AND ACCESSORIES SUPPLIED.............................................5

4.1 TN72 GPS RECEIVER ITEMS.............................................................5

4.2 INSTALLATION KIT............................................................................5

4.3 REQUIRED ITEMS ..............................................................................5

5. INSTALLATION...................................................................................7

5.1 UNPACKING AND INSPECTING EQUIPMENT........................................7

5.2 GPS RECEIVER MOUNTING...............................................................7

5.3 COOLING REQUIREMENTS .................................................................7

5.4 TN72 GPS RECEIVER ELECTRICAL CONNECTIONS ...........................8

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5.4.1 TN72 Interface –Pinout...........................................................8

5.5 TN72 GPS RECEIVER INTERFACE DETAILS.......................................8

5.5.1 Power Input..............................................................................8

5.5.2 GPS Position Output................................................................8

5.5.3 One PPS Output.......................................................................9

5.6 DCONNECTOR CRIMP TERMINALS ...................................................9

5.7 WIRING CONSIDERATIONS...............................................................10

5.8 ANTENNA INSTALLATION................................................................10

5.8.1 Antenna Power.......................................................................10

5.8.2 Recommended Cable..............................................................10

5.8.3 QMA Connector.....................................................................11

6. INSTALLATION SETUP AND TEST...............................................13

6.1 CONFIGURATION ITEMS...................................................................13

6.1.1 GPS Input...............................................................................13

6.1.2 GPS/TIS Line Speed...............................................................13

6.1.3 GPS Certification Level .........................................................14

6.1.4 GPS NAC velocity ..................................................................14

6.1.5 GPS Antenna Offset ...............................................................14

6.1.6 1090 MHz Receiver Installed.................................................14

6.1.7 UAT Receiver Installed ..........................................................15

7. POST INSTALLATION CHECKS....................................................16

8. CONTINUED AIRWORTHINESS....................................................17

9. LIMITED WARRANTY.....................................................................18

10. ENVIRONMENTAL COMPLIANCE...........................................19

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11. ADS-B COMPLIANCE...................................................................21

11.1 TSO-C199 TABS COMPLIANCE .....................................................21

11.2 FAA 91.227 COMPLIANCE..............................................................22

11.3 CS-ACNS COMPLIANCE .................................................................22

11.4 ADS-B SUPPORT ............................................................................22

12. INSTALLATION DRAWINGS......................................................23

13. BASIC INTERCONNECT DIAGRAM .........................................24

TN72 TABS GPS Receiver Installation Manual 5 January 2018

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TN72 TABS GPS Receiver Installation Manual 5 January 2018

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Trig Avionics Limited 1

1. Preface

1.1 Purpose

This manual describes the physical and electrical characteristics and the

installation requirements for a TN72 TABS GPS Receiver and recommends the

configuration settings for the associated transponder.

1.2 Scope

This document applies to the installation of the TN72 TABS GPS Receiver.

Information about configuration of Trig transponders is included, but for full

installation data on the transponder please use the applicable transponder

installation manual.

1.3 Changes from Previous Issue

Section 3.1

Added ETSO C199 Certification

Section 4.3

Corrected error in antenna specification

Section 6.1.1

Added SDA information

Section 13

Updated diagram to include TT31

1.4 Document Cross-References

00455-00

TT31 Transponder Installation Manual

00560-00

TT21/TT22 Transponder Installation Manual

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2. Introduction

2.1 TN72 Description

The TN72 TABS GPS Receiver is a TSO-C199 class B compliant GPS,

suitable for use as an ADS-B position source for a Trig transponder. When

installed in accordance with this manual it forms part of an ADS-B Out system

that is compatible with airborne traffic systems and surface surveillance

equipment.

The Traffic Awareness Beacon System (TABS) is intended for voluntary

equipage on aircraft exempted from carrying Automatic Dependent

Surveillance - Broadcast (ADS-B) equipment, such as gliders, balloons and

aircraft without electrical systems. The TN72 in conjunction with a Trig

transponder provides a fully compliant solution for those aircraft.

The TN72 can also be fitted to any aircraft operating outside ADS-B mandated

airspace to enhance traffic situational awareness. The TN72 provides a

position source with TSO Design Assurance and non-zero quality indicators for

interoperability with all kinds of traffic receivers.

Under certain circumstances the TN72 can also be used to satisfy the position

source requirements of FAR 91.227 in the USA.

2.2 Interfaces

The TN72 has a single QMA antenna interface suitable for connection to a

range of active GPS antennas. A 9 way D type connector is used for power

input and data output from the GPS.

Power Input

The TN72 operates on 11 to 33 volts DC, and is

compatible with 12, 14, 24 and 28 volt systems.

GPS Interface

An RS232 compatible output provides the GPS data to the

transponder.

Pulse Output

An RS422 compatible output provides one pulse per

second synchronised to the GPS clock. This output is not

used on the Trig transponders.

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3. Technical Specifications

3.1 TN72 GPS Receiver Unit (01655-00)

Specification

Characteristics

Compliance

TSO-C199 Class B

ETSO-C199 Class B

Applicable documents

TSO-C199, RTCA DO-160G, RTCA DO-260B

Power Requirements

11 –33 Volts DC. Typical 1 Watt @ 14Volts.

Altitude

35,000 feet

Operating Temperature

-40°C to +70°C

Receiver Type

1575.42 MHz L1, C/A code receiver with

SBAS capability

Tracking Sensitivity

-135 dBm

Physical Specifications (including mounting flange)

Height

30mm (1.2”)

Width

80mm (3.1”)

Length

75mm (2.9”)

Weight

0.22lbs. (110 g)

3.2 Installation Approval

The conditions and tests required for the TSO approval of the TN72 TABS

GPS Receiver are minimum performance standards. It is the responsibility of

those desiring to install this receiver on or within a specific type or class of

aircraft to determine that the aircraft operating conditions are within the TSO

standards. The receiver may be installed only if further evaluation by the

user/installer documents an acceptable installation that is approved by the

appropriate airworthiness authority.

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3.3 Incomplete TSO article

The TN72 is a remote mount TSO-C199 compliant class B position source. As

such the following functional requirements from TSO-C199 Appendix 1 are not

implemented.

•A1.2.7.1 Antenna Requirements

•A1.2.7.2 Antenna Installation

•A1.2.7.3 Antenna Hazards

•A1.2.8.2 Battery Operation

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