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1269 User Manual
Configuring The 1269 2-4
Installation and
Removal of Card
Guide Covers
(Airflow Directors)
In order to improve cooling of used slots in the VXI mainframe,
a limited number of airflow directors, P/N 456271, may be
installed at empty C-size slot locations to redirect otherwise
wasted airflow.
CAUTION
To maintain a balanced airflow throughout the
system when using airflow directors, do not cover
more than three empty slots at any time. If module
density is low, space airflow directors evenly
across the mainframe.
Mainframe Rear
Mainframe Front
Figure 2-2 Airflow Directors
1.
Facing the front of the VXI mainframe, with one hand
hold the airflow director by the front end where the
“Racal” logo appears.
2.
Select the slot to be covered by the director, and place
the hook at the rear of the director into the rectangular
hole at the rear of the cardguide (1). Slight downward
pressure on top of the director (with the other hand) at
the rear may be required to engage the hook into the
cardguide.
3.
Slightly flex the director upwards at the front, maintaining
pressure at the rear, and lower the center hook of the
director into the center rectangular hole in the cardguide
(2).
4.
Press down and back to allow both center and rear hook
to engage fully into the cardguide.
5.
Lower the front of the director and allow the snap-in
(1)
(2)
(3)
(4)
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