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Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide
OL-21561-02
Chapter 1 Product Overview
Fan Tray
Note The WS-X4993-F fan tray is keyed to prevent insertion into the Catalyst 4948E switch chassis.
Figure 1-5 Catalyst 4948E-F Fan Tray
The fan tray draws in air through vents at the rear of the chassis and exhausts it through the front of the
chassis as shown in
Figure 1-6.
Figure 1-6 Catalyst 4948E-F Chassis Airflow
1 Backplane connector 3 12 VDC fan (4X). Air is drawn in from the
rear of the chassis and exhausted through the
front of the chassis.
2 Captive installation screw (2X)
278085
2
3
1
281614