October 2006 
 
 
 
 
 
Model DPC2505™ and EPC2505™  
Cable Modem User's Guide 
 
 
In This Document 
 IMPORTANT SAFETY INSTRUCTIONS ............................................................... 2 
 FCC Compliance......................................................................................................... 8 
 Introduction ................................................................................................................ 9 
 What's in the Carton?............................................................................................... 10 
 Front Panel Description........................................................................................... 11 
 Back Panel Description ............................................................................................ 12 
 Where Is the Best Location for My Cable Modem? ............................................. 13 
 What Are the System Requirements for Internet Service? ................................. 14 
 How Do I Set Up My High-Speed Internet Access Account? ............................ 15 
 How Do I Connect My Devices to Use the Internet?........................................... 16 
 How Do I Configure TCP/IP Protocol? ................................................................ 18 
 How Do I Install USB Drivers?............................................................................... 21 
 How Do I Mount the Cable Modem on the Wall?............................................... 23 
 Having Difficulty?.................................................................................................... 25 
 Tips for Improved Performance............................................................................. 27 
 How Do I Renew the IP Address on My PC?....................................................... 28 
 Front Panel LED Status Indicator Functions ........................................................ 29 
 Notices ....................................................................................................................... 32