Garmin GMX 200 Installation Manual - page 16
Page 2-2
GMX 200 Installation Manual
Revision D
190-00607-04
2.3.3 Materials Required but Not Supplied
The GMX 200 equipment is intended for use with standard aviation accessories. See Appendix C for a list
of compatible equipment. The following items are required for the installation:
•
Wire (MIL-W-22759/16 or equivalent)
•
Shielded Wire (MIL-C-27500 or equivalent)
•
5-Amp Circuit Breaker
•
Tie wraps or lacing cord
•
#8 Ring Terminals (for grounding)
•
AN507 or MS24693 6-32 cadmium-plated carbon steel screws with 100° countersink flat-heads to
secure the mounting tube to the aircraft structure.
•
MS51957-42 or MS35206-242 stainless or cadmium-plated steel screw (PHP, 8-32x.312") for
terminating shield drains to shield block.
•
MS35338-137 or MS35338-42 stainless or cadmium-plated steel Split Washer (#8, .045" compressed
thickness) for terminating shield drains to shield block.
•
NAS1149CN832R or NAS1149FN832P stainless or cadmium-plated steel Flat Washer (#8, .032"
thick, .174"ID, .375" OD) for terminating shield drains to shield block.
•
Shield Terminators
•
Silicon Fusion Tape
2.4 Installation Considerations
2.4.1 Minimum System Configuration
The minimum GMX 200 installation requires the following items:
•
GMX 200 or GMX 200 I/O
•
External GPS Navigation sensor
NOTE
Altitude from GPS Navigation sensor or an altitude encoder is required
for the terrain function.
2.4.2 External Sensors
External serial data sources intended for use with the GMX 200 should be checked for compatibility
before installation. The list of supported devices is located in Appendix C of this manual.
When the GMX 200 is installed with external sensors, these sensors must be installed with manufacturer's
data. Installation of any external sensors is beyond the scope of this manual and STC.
2.4.2.1 Position Source
The GMX 200 uses the configured GPS source as the primary position source. If a GDL 90 is connected,
the GMX 200 will use the GPS position from the GDL 90 as a backup position source (i.e. the GDL 90
position is used only when the primary GPS position is unavailable).