Cisco DPC2203C Operating instructions

72-4017315-01 Rev B
DPC2203C VoIP Cable Modem
Installation and Operation Guide

Please Read
Important
Please read this entire guide. If this guide provides installation or operation
instructions, give particular attention to all safety statements included in this guide.

Notices
TrademarkAcknowledgements
Cisco and the Cisco logo are trademarks or registered trademarks of Cisco and/or its
affiliates in the U.S. and other countries. To view a list of cisco trademarks, go to this
URL: www.cisco.com/go/trademarks.
DOCSIS, EuroDOCSIS, EuroPacketCable, and PacketCable are trademarks of Cable
Television Laboratories, Inc.
Other third party trademarks mentioned are the property of their respective owners.
The use of the word partner does not imply a partnership relationship between
Cisco and any other company. (1110R)
Publication Disclaimer
Cisco Systems, Inc. assumes no responsibility for errors or omissions that may
appear in this publication. We reserve the right to change this publication at any
time without notice. This document is not to be construed as conferring by
implication, estoppel, or otherwise any license or right under any copyright or
patent, whether or not the use of any information in this document employs an
invention claimed in any existing or later issued patent.
Copyright
© 2008, 2012 Cisco and/or its affiliates. All rights reserved. Printed in the United States of
America.
Information in this publication is subject to change without notice. No part of this
publication may be reproduced or transmitted in any form, by photocopy,
microfilm, xerography, or any other means, or incorporated into any information
retrieval system, electronic or mechanical, for any purpose, without the express
permission of Cisco Systems, Inc.

IMPORTANT SAFETY INSTRUCTIONS
72-4017315-01 Rev B v
IMPORTANT SAFETY INSTRUCTIONS
Notice to Installers
The servicing instructions in this notice are for use by qualified service personnel only. To reduce the
risk of electric shock, do not perform any servicing other than that contained in the operating
instructions, unless you are qualified to do so.
20070112 SysInstaller 820 English
Notice à l’attention des installateurs de réseaux câblés
Les instructions relatives aux interventions d’entretien, fournies dans la présente notice, s’adressent
exclusivement au personnel technique qualifié. Pour réduire les risques de chocs électriques, n’effectuer
aucune intervention autre que celles décrites dans le mode d'emploi et les instructions relatives au
fonctionnement, à moins que vous ne soyez qualifié pour ce faire.
20070112 SysInstaller 820 French

IMPORTANT SAFETY INSTRUCTIONS
vi 72-4017315-01 Rev B
Mitteilung für CATV-Techniker
Die in dieser Mitteilung aufgeführten Wartungsanweisungen sind ausschließlich für qualifiziertes
Fachpersonal bestimmt. Um die Gefahr eines elektrischen Schlags zu reduzieren, sollten Sie keine
Wartungsarbeiten durchführen, die nicht ausdrücklich in der Bedienungsanleitung aufgeführt sind,
außer Sie sind zur Durchführung solcher Arbeiten qualifiziert.
20070112 SysInstaller 820 German
Aviso a los instaladores de sistemas CATV
Las instrucciones de reparación contenidas en el presente aviso son para uso exclusivo por parte de
personal de mantenimiento cualificado. Con el fin de reducir el riesgo de descarga eléctrica, no realice
ninguna otra operación de reparación distinta a las contenidas en las instrucciones de funcionamiento, a
menos que posea la cualificación necesaria para hacerlo.
20070112 SysInstaller 820 Spanish

IMPORTANT SAFETY INSTRUCTIONS
72-4017315-01 Rev B vii
Read These Instructions
Keep These Instructions
HeedAllWarnings
FollowAllInstructions
PowerSourceWarning
A label on this product indicates the correct power source for this product. Operate this product only
from an electrical outlet with the voltage and frequency indicated on the product label. If you are
uncertain of the type of power supply to your home or business, consult your service provider or your
local power company.
The AC inlet on the unit must remain accessible and operable at all times.
Ground the Product
WARNING: Avoid electric shock and fire hazard! Do not defeat the safety purpose of
the polarized or grounding-type plug. A polarized plug has two blades with one wider
than the other. A grounding-type plug has two blades and a third grounding prong.
The wide blade or the third prong is provided for your safety. If the provided plug
does not fit into your outlet, consult an electrician for replacement of the obsolete
outlet.
If this product connects to coaxial cable wiring, be sure the cable system is grounded (earthed). Grounding provides
some protection against voltage surges and built-up static charges.
Protect the Product from Lightning
For added protection, unplug this apparatus during lightning storms or when unused for long periods
of time. In addition to disconnecting the AC power from the wall outlet, disconnect the signal inputs.
Verify the Power Source from the On/Off Power Light
When the on/off power light is not illuminated, the apparatus may still be connected to the power
source. The light goes out when the apparatus is turned off, regardless of whether it is still plugged into
an AC power source.
EliminateAC MainsOverloads
WARNING: Avoid electric shock and fire hazard! Do not overload AC mains, outlets,
extension cords, or integral convenience receptacles. For products that require battery
power or other power sources to operate them, refer to the operating instructions for
those products.

IMPORTANT SAFETY INSTRUCTIONS
viii 72-4017315-01 Rev B
Prevent Power Cord Damage
Protect the power cord from being walked on or pinched, particularly at plugs, convenience
receptacles, and the point where the cord exits from the apparatus.
Handling Optional, Rechargeable Battery
This product may contain a rechargeable Lithium-Ion battery to provide stand-by operation in the
event of an AC power failure. Heed the following warning and see the instructions later in this guide
for handling, replacing, and disposing of the battery.
WARNING: There is danger of explosion if the battery is mishandled or incorrectly
replaced. Replace only with the same type of battery. Do not disassemble it or attempt
to recharge it outside the system. Do not crush, puncture, dispose of in fire, short the
external contacts, or expose to water or other liquids. Dispose of the battery in
accordance with local regulations and instructions from your service provider.
Provide Ventilation and Select a Location
Remove all packaging material before applying power to the product.
Do not block any ventilation openings. Install in accordance with the manufacturer's instructions.
Do not place this apparatus on a bed, sofa, rug, or similar surface.
Do not place this apparatus on an unstable surface.
Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus
(including amplifiers) that produce heat.
Do not install this apparatus in an enclosure, such as a bookcase or rack, unless the installation
provides proper ventilation.
Do not place entertainment devices (such as VCRs or DVDs), lamps, books, vases with liquids, or
other objects on top of this product.
Protect from Exposure to Moisture and Foreign Objects
Do not use this apparatus near water.
WARNING: Avoid electric shock and fire hazard! Do not expose this product to
liquids, rain, or moisture.
WARNING: Avoid electric shock and fire hazard! Unplug this product before cleaning.
Clean only with a dry cloth. Do not use a liquid cleaner or an aerosol cleaner. Do not
use a magnetic/static cleaning device (dust remover) to clean this product.
WARNING: Avoid electric shock and fire hazard! Never push objects through the
openings in this product. Foreign objects can cause electrical shorts that can result in
electric shock or fire.

IMPORTANT SAFETY INSTRUCTIONS
72-4017315-01 Rev B ix
Accessories Warning
WARNING: Avoid electric shock and fire hazard! Only use attachments/accessories
specified by your service provider or the manufacturer.
Service Warnings
WARNING: Avoid electric shock! Do not open the cover of this product. Opening or
removing the cover may expose you to dangerous voltages. If you open the cover, your
warranty will be void. This product contains no user-serviceable parts. Refer all
servicing to qualified service personnel.
Servicing is required when the apparatus has been damaged in any way, such as a power-supply cord
or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has
been exposed to rain or moisture, does not operate normally, or has been dropped.
Check ProductSafety
Upon completion of any service or repairs to this product, the service technician must perform safety
checks to determine that this product is in proper operating condition.
Protect the Product When Moving It
Always disconnect the power source when moving the apparatus or connecting or disconnecting
cables.
WARNING: Avoid personal injury and damage to this product! Use only with the cart,
stand, tripod, bracket, or table specified by the manufacturer or sold with the
apparatus. When a cart is used, use caution when moving the cart / apparatus
combination to avoid injury from tip-over.
20070802 Modem Cable with Recharge Battery

FCC Compliance
72-4017315-01 Rev B xi
FCC Compliance
United States FCC Compliance
This device has been tested and found to comply with the limits for a Class B digital device,
pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable
protection against such interference in a residential installation. This equipment generates,
uses, and can radiate radio frequency energy. If not installed and used in accordance with the
instructions, it may cause harmful interference to radio communications. However, there is
no guarantee that interference will not occur in a particular installation. If this equipment
does cause harmful interference to radio or television reception, which can be determined by
turning the equipment OFF and ON, the user is encouraged to try to correct the interference
by one or more of the following measures:
Reorient or relocate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.
Consult the cable company or an experienced radio/television technician for help.
Any changes or modifications not expressly approved by Cisco Systems, Inc., could void the
user's authority to operate the equipment.
The information shown in the FCC Declaration of Conformity paragraph below is a
requirement of the FCC and is intended to supply you with information regarding the FCC
approval of this device. The phone numbers listed are for FCC-related questions only and not
intended for questions regarding the connection or operation for this device. Please contact your cable
service provider for any questions you may have regarding the operation or installation of this device.
DeclarationofConformity
This device complies with Part 15 of FCC
Rules. Operation is subject to the following two
conditions: 1) the device may not cause
harmful interference, and 2) the device must
accept any interference received, including
interference that may cause undesired
operation.
VoIP Cable Modem
Model: DPC2203C
Manufactured by:
Cisco Systems, Inc.
5030 Sugarloaf Parkway
Lawrenceville, Georgia 30044 USA
Telephone: [phone]
Canada EMIRegulation
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la class B est conforme à la norme NMB-003 du Canada.
20060628 FCC Standard

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

Contents
xiv 72-4017315-01 Rev B
Chapter 5 Operating the DPC2203C 57
WebWizard ............................................................................................................................. 58
Appendix A Specifications 67
Technical Specifications ........................................................................................................ 68
Appendix B Cable Modem Warranty and RMA Information 73
Warranty and RMA Information......................................................................................... 74

About This Guide
72-4017315-01 Rev B xv
About This Guide
Introduction
This installation and operation guide applies to the Model DPC2203C voice over
Internet Protocol (VoIP) Cable Modems. These models are cable modems with an
embedded media terminal adapter (EMTA) including two RJ-11 telephone ports
supporting two-line voice services, a 10/100Base-T Ethernet port, and a USB 1.1 port
for high-speed data connectivity.
The DPC2203C is compatible with the following specifications:
Data Over Cable System Interface Specifications (DOCSIS®) 2.0 and 1.1
PacketCableTM 1.0 (upgradeable to PacketCable 1.1)
This guide provides the following design, performance, and technical information
for understanding basic VoIP and cable modem operation and function to
familiarize you with the DPC2203C:
Design and performance features
Theory of operation for cable modems
Procedures for installing, operating, maintaining, and troubleshooting the
DPC2203C using the Cable Modem Access Protection and WebWizard features
Appendixes that include technical specifications
Purpose
This installation and operation guide contains detailed instructions for installing,
operating, maintaining, and troubleshooting the DPC2203C.
Audience
This guide is written for cable service providers, system operators, cable modem
installers, system engineers, customer service representatives, cable modem
marketing personnel, and Cisco Service engineers.

About This Guide
xvi 72-4017315-01 Rev B
Document Version
This is the second release of this document.

72-4017315-01 Rev B 1
Introduction
The Model DPC2203C VoIP Cable Modem provides broadband
network operators with a cost-effective way to offer standard
telephone service along with high-speed data services to subscribers.
The DPC2203C features a highly integrated Embedded Multimedia
Terminal Adapter (EMTA) with two RJ-11 telephony ports for
conventional telephones or fax machines. In addition, the DPC2203C
contains both a 10/100Base-T Ethernet port and a USB 1.1 port to
provide connectivity for high-speed data services or other Internet
appliances. The DPC2203C modem also includes an internal Lithium-
Ion cartridge-style battery for convenient backup power.
This chapter provides an overview of the outstanding design and
performance features of the DPC2203C, the front and back panel
components of the cable modem, and a theory of operation for cable
modems for successful installation and operation of the cable modem.
This chapter also provides the requirements for the cable system and
the user’s site.
1Chapter 1
Introducing the Model
DPC2203C VoIP Cable Modem
In This Chapter
DPC2203C Features ................................................................................ 2
DPC2203C Components ........................................................................ 4

Theory of Operation ............................................................................... 7

Chapter 1 Introducing the Model DPC2203C VoIP Cable Modem
2 72-4017315-01 Rev B
DPC2203C Features
This section contains an overview of some of the design and performance features of
the DPC2203C.
Design and Performance Features
The DPC2203C is designed to meet DOCSIS®2.0 and 1.1 specifications along with
PacketCable 1.0 specifications.
The following list provides some of the outstanding design and performance
features of the DPC2203C:
Attractive compact design
Embedded Multimedia Terminal Adapter (EMTA) that provides two lines of
voice services
Standard VoIP call signaling compliant with MGCP/NCS specifications
Software upgrades available to support session initiation protocol (SIP) call
signaling
G.711 and G.728 codecs (other codecs are available upon request)
Echo cancellation
Voice activation detection (VAD)
Comfort noise generation (CNG)
WebWizard browser-based graphical user interface for simple setup
Up to eight front-panel LED status indicators provide an easy-to-understand
display that shows cable modem status and real-time data transmission activity
Internet Protocol Security (IPSec) and AES-128 encryption options
Downloadable software for future upgrades
Bridged 10/100Base-T auto-sensing/auto-MDIX Ethernet port
USB 1.1 data port
CD-ROM containing a user guide and USB driver installation software
Simple network management protocol (SNMP) v1, v2c, and v3
Unit can be operated freestanding horizontally or vertically, or wall mounted
horizontally or vertically

DPC2203C Features
72-4017315-01 Rev B 3
WebWizard
The DPC2203C includes the WebWizard, a browser-based interface that facilitates
cable modem set up and troubleshooting. The WebWizard verifies set-up and
troubleshooting results and eliminates the need to load additional setup software on
the consumer premise equipment (CPE). In addition, as many as eight front-panel
LED status indicators provide an informative and easy-to-understand display that
indicates cable modem status along with a visual feedback of real-time data
transmissions and modem operating status.
Note: For more information on the WebWizard feature, see WebWizard (on page
58).

Chapter 1 Introducing the Model DPC2203C VoIP Cable Modem
4 72-4017315-01 Rev B
DPC2203C Components
Front PanelDescription
The front panel of your cable modem provides status LEDs that indicate how well
and at what state your cable modem is operating. See Functions of Front Panel LED
Status Indicators (on page 38) for more information on front-panel LED status
indicator functions.
1POWER – Illuminates solid green to indicate that AC power is being applied to
the cable modem. AC power must be available to recharge the optional battery.
2DS (Downstream) – Indicates the status of the connection for receiving data.
Illuminates during normal operation
3US (Upstream) – Indicates the status of the connection for sending data.
Illuminates during normal operation
4ONLINE – Illuminates solid green when the cable modem is registered on the
network and fully operational. This indicator blinks to indicate one of the
following conditions:
The cable modem is booting up and not ready for data
The cable modem is scanning the network and attempting to register
The cable modem has lost registration on the network and will continue
blinking until it registers again
5LINK – Illuminates solid green to indicate that an Ethernet/USB carrier is
present and blinks to indicate that Ethernet/USB data is being transferred
between the PC and the cable modem
6TEL 1 – Illuminates solid green when telephony service is enabled. Blinks when
line 1 is in use
7TEL 2 – Illuminates solid green when telephony service is enabled. Blinks when
line 2 is in use
8BATTERY – Illuminates solid green to indicate that the battery is charged. Blinks
to indicate that the battery charge is low. Off when operating from battery
power, when the battery charge is depleted, or the battery is defective or not
installed