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G900X/G950 Installation and Maintenance Manual – GDU 1040
Page 2-3
190-00719-00
Revision D
2.3 Environmental Characteristics
The table below contains general specifications. For detailed environmental specifications, see the
Environmental Qualification Form.
Table 2-2. GDU 1040 Environmental Characteristics
Characteristics Specifications
Operating Temperature Range
-40°C to +55°C.
Humidity 95%
non-condensing
Altitude Range
-1,500 ft to 55,000 ft
Software Compliance
RTCA/DO-178B levels B, C, and D
Hardware Compliance
RTCA/DO-254 Level B
Environmental Compliance
RTCA/DO-160D
2.3.1 Environmental Qualification Form
Refer to the GDU 10XX Environmental Qualification Form, Garmin part number 005-00150-02, for a
complete list of environmental characteristics.