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

1

2

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3

1

2

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.

Captive installation screw (2X)

 

 

 

 

 

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

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Catalyst 4948E and Catalyst 4948E-F Switch Installation Guide

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OL-21561-02

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Cisco Systems manual Catalyst 4948E-F Fan Tray