Garmin GSU 75 User Manual

190-01639-00 GSU 75 ADAHRS Installation Manual
Rev. 6 Page iv
TABLE OF CONTENTS
PARAGRAPH PAGE
Section 1 GENERAL DESCRIPTION .............................................................1-1
1.1 Introduction...................................................................................................................... 1-1
1.2 Equipment Description .................................................................................................... 1-2
1.3 Interface Summary...........................................................................................................1-3
1.4 Technical Specifications .................................................................................................. 1-3
1.5 Certification ..................................................................................................................... 1-6
1.6 Operating Instructions......................................................................................................1-8
1.7 Reference Documentation................................................................................................ 1-8
Section 2 INSTALLATION OVERVIEW........................................................2-1
2.1 Introduction...................................................................................................................... 2-1
2.2 Installation Materials ....................................................................................................... 2-1
2.3 Equipment Available ....................................................................................................... 2-2
2.4 Additional Equipment Required ...................................................................................... 2-3
2.5 Cabling and Wiring..........................................................................................................2-3
2.6 Electrical Bonding ........................................................................................................... 2-3
2.7 Pneumatic Plumbing ........................................................................................................ 2-4
2.8 Cooling Air ...................................................................................................................... 2-4
2.9 GTP 59 Icing.................................................................................................................... 2-4
2.10 Installation Approval Considerations for Pressurized Aircraft...................................... 2-5
2.11 Mounting Requirements ................................................................................................ 2-6
Section 3 INSTALLATION PROCEDURE.....................................................3-1
3.1 Unpacking Unit................................................................................................................ 3-1
3.2 Wiring Harness Installation ............................................................................................. 3-1
3.3 Backshell Assembly and Installation............................................................................... 3-3
3.4 GSU 75/GMU 44 Interconnect Harness Fabrication Instructions ................................... 3-3
3.5 GSU 75/GTP 59 Interconnect Harness Fabrication Instructions..................................... 3-4
3.6 Pneumatic Connections.................................................................................................... 3-8
3.7 Mounting Instructions...................................................................................................... 3-9
3.8 Post Installation Configuration and Checkout ............................................................... 3-11
3.9 Continued Airworthiness ............................................................................................... 3-11
Section 4 SYSTEM INTERCONNECTS..........................................................4-1
4.1 Pin Function List.............................................................................................................. 4-1
4.2 Power Functions .............................................................................................................. 4-4
4.3 Data Interfaces ................................................................................................................. 4-5
4.4 GSU 75 Discrete Inputs ................................................................................................... 4-7
4.5 GSU 75 OAT (Outside Air Temperature) Probe ............................................................. 4-8
4.6 GSU 75 PPS (Pulse Per Second) Inputs .......................................................................... 4-8
4.7 GSU 75 ARINC 429 System ID Connections ................................................................. 4-9
340095
The document reference is online, please check the correspondence between the online documentation and the printed version.

Garmin GSU 75 Specifications

General

Brand	Garmin
Model	GSU 75
Category	Avionics Display
Language	English