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User Guide for the Catalyst Express 520 Switches
OL-12761-02
Chapter 1      Introduction
Hardware Requirements
• 1000BASE-LX/LH
• 1000BASE-SX
• 1000BASE-T
For more information about these SFP modules, see your Cisco SFP module 
documentation on Cisco.com. 
Hardware Requirements
Table 1-3 lists the minimum hardware requirements for setting up the switch and 
for using the device manager.
Software Requirements
Table 1-4 lists the supported operating systems and browsers for setting up the 
switch and for using the device manager. The device manager verifies the browser 
version when starting a session to ensure that the browser is supported. 
The device manager does not require a plug-in.
You should disable any pop-up blockers or proxy settings in your browser 
software and any wireless clients running on your PC or laptop. 
Table 1-3 Hardware Requirements
Processor Speed 233 MHz minimum
1 GHz recommended
RAM 512 MB minimum
1 GB recommended
Free Hard Drive Space 50 MB
Number of Colors 256
Resolution 1024 x 768
Font Size Small