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72-4017315-01 Rev B xiii
Contents
IMPORTANT SAFETY INSTRUCTIONS v
FCC Compliance xi
About This Guide xv
Chapter 1 Introducing the Model DPC2203C VoIP Cable Modem 1
DPC2203C Features ................................................................................................................. 2
DPC2203C Components .......................................................................................................... 4
Theory of Operation ................................................................................................................ 7
Chapter 2 Installing the DPC2203C for Internet Service 13
Before You Begin .................................................................................................................... 14
Install the Cable Modem ....................................................................................................... 18
Configure TCP/IP .................................................................................................................. 20
Install USB Drivers ................................................................................................................ 23
Chapter 3 Installing the DPC2203C for Telephone Service 25
Telephone Requirements ...................................................................................................... 26
About the Battery ................................................................................................................... 27
Mount the Cable Modem on a Wall (Optional) ................................................................. 29
Install the Cable Modem to Provide Telephone Service .................................................. 31
Chapter 4 Troubleshooting the Installation 35
Troubleshooting Overview ................................................................................................... 37
Functions of Front Panel LED Status Indicators ................................................................ 38
Powering Options .................................................................................................................. 41
No Downstream Signal Lock ............................................................................................... 43
Ranging Not Complete ......................................................................................................... 45
IP Connectivity Not Complete ............................................................................................. 47
Registration Not Complete ................................................................................................... 49
Troubleshooting for High-Speed Data Installations ......................................................... 51
Troubleshooting for Telephony Installations ..................................................................... 54
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