The Cisco SLM248G 48-port 10 100 + 2-port Gigabit Smart Switch - SFPs is now obsolete (past End-of-Life and End-of-Support status).
End-of-Sale Date: 2011-08-11
End-of-Support Date: 2016-08-11
Cisco's End-of-Life Policy
You can view a listing of available null offerings that best meet your specific needs
If you want support information for the Cisco SLM248G 48-port 10 100 + 2-port Gigabit Smart Switch - SFPs documentation, it may be available through Cisco.com Search or in the Cisco Community