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Page 2-4
GNS 400W Series Maintenance Manual
Rev. A
190-00356-05
2.4 TECHNICAL
SPECIFICATIONS
Table 2-2. General Specifications
Operating Temperature Range
-20° C to +55° C. For more details see
Environmental Qualification Form on the
Dealers Only page on www.garmin.com.
Humidity
95% non-condensing
Altitude Range
-1,500 ft. to 50,000 ft.
Input Power Requirements
Input Voltage Range - All Units (Main
Connector)
10 to 33.2 V dc
Input Voltage Range GNC 420W, GNS
430W (COM Connector)
11 to 33 V dc
Input Voltage Range GNC 420AW, GNS
430AW (COM Connector)
24.1 to 33 V dc
GPS 400W (Main Connector)
700 mA @ 28 V dc (maximum) 1.4 A @ 14 V
dc (maximum)
GNC 420W, GNC 420AW, (Main Connector)
1.2 A @ 28 V dc (maximum) 2.5 A @ 14 V dc
(maximum)
GNS 430W, GNS 430AW, (Main Connector)
1.2 A @ 28 V dc (maximum) 2.5 A @ 14 V dc
(maximum)
GNC 420W, GNS 430W (COM Connector)
15 mA @ 28 V dc (receive) 3.0 A @ 28 V dc
(transmit) 15 mA @ 14 V dc (receive) 6.0 A @
14 V dc (transmit)
GNC 420AW, GNS 430AW (COM
Connector)
15 mA @ 28 V dc (receive) 3.0 A @ 28 V dc
(transmit)
Superflag Power Requirements
500 mA maximum per superflag output
Environmental Testing
See Environmental Qualification Form on the
Dealers Only page on www.garmin.com.
Display Size
3.8” diagonal
Active Area
3.29” (W) x 1.75” (H)
Resolution
240 x 128 pixels
Viewing Angle (with a 2:1 contrast ratio, min)
Left/Right: Up: Down: 40° 40° 40°
Viewing Distance
36 inches maximum