Garmin GDU 370 Installation Manual page 18

1.4.3 Physical Specifications
All width, height, and depth measurements are taken with unit rack (if applicable) and connectors.
LRU
GDU 370
GDU 375
GMU 44
GSU 73
1.4.4 Cooling Requirements
While no forced cooling air is required for the G3X system, it is highly recommended that the air behind
the panel be kept moving (by ventilation or a fan).
•
No cooling air is required for the GDU 37X
•
No cooling air is required for the GMU 44
•
No cooling air is required for the GSU 73, however the GSU 73 should be mounted in a location
that provides adequate airflow to comply with the maximum outer case temperature listed in
Section 4.
Avoid installing the G3X LRUs near heat sources. If this is not possible, ensure that
additional cooling is provided. Allow adequate space for installation of cables and
connectors. The installer will supply and fabricate all of the cables. All wiring should be
in accordance with FAA AC 43.13-1B and AC 43.13-2A.
Page 1-4
Revision A
Table 1-4. G3X LRU Physical Specifications
Width Height
6.04 inches 7.83 inches
(153.4 mm) (198.8 mm)
6.04 inches 7.83 inches
(153.4 mm) (198.8 mm)
2.10 inches
N/A
(5.33 cm)
5.50 inches 3.96 inches
(139.8 mm) (100.6 mm)
NOTE
Depth
(GMU 44
Diameter, Unit Weight
including
flange*)
3.41 inches 1.6 lbs
(86.7 mm) (0.713 kg)
3.41 inches 1.7 lbs
(86.7 mm) (0.753 kg)
*3.35 inches 0.35 lbs.
(85.1 mm) (0.16 kg)
7.33 inches 3.1 lbs
(186.2 mm) (1.41 kg)
G3X Installation Manual –Installation Overview
Unit Weight
w/Nutplate
& Connector
Weight
1.8 lbs
(0.803 kg)
1.9 lbs
(0.843 kg)
0.50 lbs.
(0.23 kg)
3.5 lbs
(1.59 kg)
190-01115-01