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Garmin GTR 225A User Manual
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190-01182-02
GTR 225/GNC 255 TSO Installation Manua
l
Rev. F
Page 7-1
7
CONTINUED AIR
WORTHINESS
Maintenance of the GTR 225, GTR
225A, GTR 225B, GNC 255A, or GN
C 255B is “on
condition” only.
For regulatory periodic functional
checks, refer to ap
proved aircraft maintena
nce manuals or ma
nual
supplements for actual aircra
ft maintenance requirements.
74
76
Table of Contents
Default Chapter
6
Table of Contents
6
1 General Description
12
Introduction
12
Equipment Description
12
Table 1-1 TSO-Certified Units
12
General Specifications
14
Table 1-2 Physical Specifications
14
Table 1-3 Display Specifications
14
COM Specifications
15
Table 1-4 COM Transmitter Specifications
15
Table 1-5 COM Receiver Specifications
16
VOR Specifications
17
Table 1-6 vor Specifications
17
LOC Specifications
18
Table 1-7 LOC Specifications
18
Glideslope Specifications
19
Table 1-8 Glideslope Specifications
19
Current Draw Specifications
20
Table 1-9 GTR/GNC Current Draw Specifications
20
License Requirements
21
Certification
22
Table 1-10 TSO Authorization and Advisory Circular References
22
Table 1-11 System Functions
22
GTR/GNC Database
24
Aviation Limited Warranty
25
2 Limitations
26
Installation
26
Aircraft Radio
26
3 Installation Overview
27
Introduction
27
Antenna Considerations
27
GTR/GNC Mounting Considerations
28
Cabling and Wiring Considerations
29
Air Circulation and Cooling
29
Compass Safe Distance
29
4 Installation Procedures
30
Unit and Accessories
30
Miscellaneous Options
30
Table 4-1 Catalog P/Ns
30
Table 4-2 Standard Kit Accessories
30
Table 4-3 Miscellaneous Options
30
Optional Reference Material
31
Installation Materials Required but Not Supplied
31
Table 4-4 Optional Reference Material
31
Special Tools Required
32
Table 4-5 Recommended Crimp Tools (or Equivalent)
32
Table 4-6 Socket Contact P/Ns
32
Coaxial Cable Installation
33
Equipment Mounting
33
COM Antenna Installation and Connections
34
5 Connector Pinout Information
35
Pin Function List
35
Power, Lighting, and Antennas
39
6 Post Installation Configuration and Checkout Procedures
50
System Configuration Overview
50
Mounting, Wiring, and Power Checks
50
Connector Engagement Check
51
Configuration Mode Operations
51
Figure 6-1 Configuration Mode Page
51
Figure 6-2 Serial Port Page
52
Figure 6-3 DST Priority Page
52
Table 6-1 Serial Port Selections
52
Figure 6-4 Intercom Enable Page
53
Figure 6-5 Backlight Page
53
Table 6-2 Intercom Enable Page Selections
53
Table 6-3 Backlight Selections
53
Table 6-4 Photocell Page Parameter Description
54
Figure 6-7 Lighting Bus Page
55
Figure 6-8 Display Information Pages
55
Table 6-5 Lighting Bus Parameter Description
55
Figure 6-9 Software Update Page
56
Figure 6-10 CDI Indicator Page
56
Table 6-6 CDI Indicator Selections
56
Figure 6-11 Calibrate OBS Resolver Page
57
Figure 6-12 ARINC 429 Page
57
Table 6-7 ARINC 429 Configuration Speed (TX)
57
Table 6-8 SDI Selections
57
Table 6-9 DME Settings
58
Table 6-10 A429 Settings
58
Figure 6-13 NAV Information Page
59
Figure 6-14 NAV Software Update Page
59
Figure 6-15 MIC Gain Page
60
Figure 6-16 COM RX Squelch Page
60
Figure 6-17 COM Information Page
61
Table 6-11 COM RX Squelch Selections
61
Table 6-12 COM RX Squelch Settings
61
Figure 6-18 COM Software Update Page
62
Figure 6-19 COM Sidetone Page
62
Table 6-13 COM Sidetone Mode Selections
62
Figure 6-20 MIX NAV Audio Page
63
Figure 6-21 Hi-Fidelity Audio Page
63
Table 6-14 COM Sidetone Pilot Control
63
Figure 6-22 Download Log Page
64
Figure 6-23 Clear Error Logs Page
64
Ground Checks (Configuration Mode)
65
Figure 6-24 Calibrate OBS Resolver Page
65
Figure 6-25 Test Analog Flags Page
66
Figure 6-26 Test CDI/VDI Page
67
Ground Checks (Normal Mode)
68
Table 6-15 Discrete Input Pins
68
Flight Checks
71
Software Loading
72
Table 6-16 Software Compatibility
72
Figure 6-27 USB Update Progress
73
Figure 6-28 Database Update Page
74
Figure 6-29 Database Info Page
74
7 Continued Airworthiness
75
Appendix A Environmental Qualification Form
76
Appendix B Gtr/Gnc Data Format
77
Aviation Format
77
Table B-1 Aviation Output Sentence Format
78
Table B-2 Type 2 Aviation Output Sentence Format
80
NMEA Data Format
81
Table B-3 Input Message Summary
97
Table B-4 Output Message Summary
97
Appendix Cmechanical Drawings
98
Drawing List
98
Figure C-1 GTR/GNC Dimensions
98
Figure C-2 GTR/GNC Mounting Rack
98
Figure C-3 GNC Center of Gravity
98
Figure C-4 GTR Center of Gravity
98
Figure C-5 GTR/GNC Rear Connector Layout Detail
98
Figure C-6 Panel Cutout Detail
98
Figure C-7 GTR Mounting Rack
98
Appendix D Interconnect Diagrams
106
Drawing List
106
Figure D-1 GTR/GNC System Interface Diagram
106
Figure D-3 GTR/GNC Power Lighting Configuration Interconnect
106
Figure D-6 GTR/GNC - MIC Interconnect
106
Figure D-8 GTR/GNC Switches Interconnect
106
Figure D-9 GNC - RMI OBI Interconnect
106
Figure D-2 GTR/GNC Typical Installation
108
Figure D-4 GTR/GNC - Antennas Interconnect
111
Figure D-5 GTR/GNC - Audio Panel Interconnect
115
Figure D-7 GNC - VOR/ILS Interconnect
119
Figure D-10 GNC - King Serial DME - Remote Mount Interconnect
123
Figure D-11 GNC - Parallel 2 of 5 DME Tuning Interconnect
125
Figure D-12 GNC - Parallel Slip Code DME Tuning Interconnect
126
Figure D-13 GNC - King Serial DME - Panel Mount Interconnect
128
Figure D-14 GNC - GDU 620 Interconnect
129
Figure D-15 GTR/GNC - GTN 6XX/7XX, GNS 400W/500W, and GNS 480 Interconnect
130
Figure D-16 GTR/GNC - GMX 200 Interconnect
131
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Garmin GTR 225A Specifications
General
Brand
Garmin
Model
GTR 225A
Category
Transceiver
Language
English
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