GRS 77/GMU 44 Installation Manual
Page iii
190-00303-10
Revision
L
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.............................................................................................................................1-2
1.4 Technical
Specifications ....................................................................................................................1-2
1.5 Certification .......................................................................................................................................1-4
1.6 Reference
Publications ......................................................................................................................1-6
1.7 Aviation Limited Warranty................................................................................................................1-7
2 INSTALLATION
OVERVIEW ........................................................................................................2-1
2.1 Introduction........................................................................................................................................2-1
2.2 Installation Approval Considerations for Pressurized Aircraft..........................................................2-3
2.3 Wiring ................................................................................................................................................2-4
2.4 Cooling
Air ........................................................................................................................................2-4
2.5 Aircraft Mounting Requirements for GRS 77/GMU 44 ....................................................................2-4
3 INSTALLATION
PROCEDURE......................................................................................................3-1
3.1 Unpacking
Unit..................................................................................................................................3-1
3.2 Electrical
Connections .......................................................................................................................3-1
3.3 Backshell Assembly...........................................................................................................................3-2
3.4 GRS 77/GMU 44 Interconnect Harness Fabrication Instructions .....................................................3-3
3.5 GRS 77 and GMU 44 Mounting Instructions ....................................................................................3-4
3.6 GRS 77 Rack to Unit Flatness Check ................................................................................................3-4
3.7 Post Installation Inspection ................................................................................................................3-5
4 SYSTEM
INTERCONNECTS..........................................................................................................4-1
4.1 Pin Function List................................................................................................................................4-1
4.2 Power
Function ..................................................................................................................................4-3
4.3 Serial Data Electrical Characteristics.................................................................................................4-4
