
1-3
DNW-75/75P
DNW-65/65P
1-5. Installation Space
When the unit is mounted in the rack, leave a space on the
top or bottom of this unit by 1U.
Moreover, an air flow that is effective in cooling the unit is
essential. If the ventilation is not enough, the unit may be
damaged because of an increase of the internal tempera-
ture.
n
This unit is air-cooled by three fans. The operation with the
upper lid removed affects the air cooling by the fans.
Complete the work in a short time as possible when
operating the unit for inspection with the upper lid re-
moved. If it takes a long time, blow to the unit by an
electric fan to cool the unit.
1-5. Installation Space
When installing, the installation space must be secured in
consideration of the ventilation and service operation.
.
Do not block ventilation slots at the right side panel and
upper lid or bottom plate, and vents of the fans.
.
Leave a space around the unit for ventilation.
.
Leave more than 40 centimeters of space in the rear of
the unit to secure the operation area.
When the unit is installed on the desk or the like, leave at
least four centimeters of space in the top and right sides.
Leaving 40 centimeters or more of space above the unit is
recommended for service operation.
Dimensions when Rack-Mounting
481
465
364
427
31.5
36.7
220
148.2
19
158
104
15.9
12.7
123.8
263.5
457.5
454
47.1
18.3
107
(70.6)
1.2
415.9
218
512.8
(454)
(47.1)
45.5
520
: 26.7 kg
: 26.0 kg
577(Maximum traveling distance)
416(Rail-installed width)
427(Unit width)
Unit : mm
n
Remove the feet when rack mounting.
Mass of DNW-75/75P
Mass of DNW-65/65P