Installation guide

ADC Telecommunications, Inc.
52 C
HAPTER 1: HARDWARE OVERVIEW
A filtering screen is placed immediately behind the vented front panel to
clean the incoming air stream prior to circulation up through the system.
Replacement filters are available through ADC.
When serving as an exhaust plenum, the fan trays mounted directly below
each chassis push air up through the rack-mounted systems and into the
exhaust plenum.
The first chassis installation requires two plenums; one directly above the
chassis, and one below the fan tray. See “System Placement in the Rack” on
page 64 for details regarding the proper component order.
Replacing the Plenum Filtering Screen
To replace this filtering screen, see Figure 1-17 and use this procedure:
1. Loosen the two captive thumbscrews that secure the front panel to the
plenum.
2. Pull the front panel from the plenum unit, as shown in Figure 1-17.
3. The filtering screen sits between the front panel and a slotted aluminum
grid. Remove the filtering screen from behind the front panel.
4. Place the replacement filtering screen onto the slotted grid located at the
front of the intake plenum. The filtering screen has two holes that allow
you to slip the filtering screen over the two screw cylinders attached to
the aluminum grid.
5. Align the front panel so that the two captive thumbscrews located on the
front panel align with the two screw cylinders on the aluminum grid.
Place the panel against the front of the plenum and secure the panel in
place by tightening the two captive screws.