1-10
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
1Backplane connector 312 VDC fan (4X). Air is drawn in from the
rear of the chassis and exhausted through the
front of the chassis.
2Captive installation screw (2X)
278085
2
3
1
281614