Scientific Atlanta Network Router DPX2203 User Guide

WebSTAR™ DPX2203™ and  
EPX2203™ VoIP Cable Modem  
Users Guide  
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Section A  
IMPORTANT RULES FOR SAFE OPERATION  
Overview  
Introduction  
This section provides important safety instructions that you must read and follow.  
In this Section  
This section contains the following topic.  
Topic  
See Page  
IMPORTANT RULES FOR SAFE OPERATION  
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IMPORTANT RULES FOR SAFE OPERATION  
Note to Installer  
Note to CATV System Installer  
CAUTION  
This reminder is provided to call the CATV  
system installer’s attention to Article 820-40  
of the NEC (Section 54, Part I of the Canadian  
Electrical Code), that provides guidelines for  
proper grounding and, in particular,  
RISK OF ELECTRIC SHOCK  
DO NOT OPEN  
AVIS  
specifies that the CATV cable ground shall  
be connected to the grounding system of  
the building, as close to the point of cable  
entry as practical.  
CAUTION: To reduce the risk of electric  
shock, do not remove cover (or back).  
No user-serviceable parts inside. Refer  
servicing to qualified service personnel.  
WARNING  
TO PREVENT FIRE OR ELECTRIC SHOCK,  
DO NOT EXPOSE THIS UNIT TO RAIN OR  
MOISTURE.  
This symbol is intended to alert you that  
uninsulated voltage within this product may  
This symbol is intended to alert you of the  
have sufficient magnitude to cause electric shock. presence of important operating and  
Therefore, it is dangerous to make any kind of  
contact with any inside part of this product.  
maintenance (servicing) instructions in the  
literature accompanying this product.  
Read and Retain These Instructions  
Read all of the instructions before you operate this equipment. Give particular  
attention to all safety precautions. Retain the instructions for future reference.  
• Comply with all warning and caution statements in the instructions. Observe all  
warning and caution symbols that are affixed to this equipment.  
• Comply with all instructions that accompany this equipment.  
Cleaning the Equipment  
Before cleaning this equipment, unplug it from the electrical outlet. Use a damp cloth  
to clean this equipment. Do not use a liquid cleaner or an aerosol cleaner. Do not use  
a magnetic/ static cleaning device (dust remover) to clean this equipment.  
Placement  
Place this equipment in a location that is close enough to an electrical outlet to  
accommodate the length of the power cord. Place this equipment on a stable surface.  
The surface must support the size and weight of this equipment. Place this  
equipment either horizontally or vertically.  
WARNING: Avoid personal injury and damage to this equipment. An  
unstable surface may cause this equipment to fall.  
Continued on next page  
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IMPORTANT RULES FOR SAFE OPERATION, Continued  
Accessories  
Do not use accessories with this equipment unless recommended by your cable  
service provider.  
Ventilation  
This equipment has openings for ventilation that protect it from overheating. To  
ensure the reliability of this equipment, do not obstruct the openings.  
Do not place other equipment, lamps, books, or any other object on the top of or  
beside this equipment.  
Do not place this equipment in any of the locations that follow:  
On a bed, sofa, rug, or similar surface  
Over a radiator or a heat register  
In an enclosure, such as a bookcase or equipment rack, unless the installation  
provides proper ventilation  
Overloading  
Do not overload electrical outlets, extension cords, or integral convenience  
receptacles, as this can result in a risk of fire or electric shock. For equipment that  
requires battery power or other sources to operate, refer to the operating instructions  
for that equipment.  
Object and Liquid Entry  
Never push objects of any kind into this product through openings as they may  
touch dangerous voltage points or short out parts that could result in a fire or electric  
shock. Do not expose this equipment to liquid or moisture. Do not place this  
equipment on a wet surface. Do not spill liquids on or near this equipment.  
Lightning and Power Surges  
Plug your equipment into a surge protector in order to reduce the risk of damage  
from lightning strikes and power surges. If you are unsure of the type of surge  
protector to use, contact your cable service provider.  
Servicing  
Do not open the cover of this equipment. If you open the cover, your warranty will  
be void. Refer all servicing to qualified personnel only. Contact your cable service  
provider for instructions.  
Continued on next page  
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IMPORTANT RULES FOR SAFE OPERATION, Continued  
Power Cord Protection  
Arrange all power cords so that people cannot walk on the cords, place objects on  
the cords, or place objects against the cords, which can damage the cords. Pay  
particular attention to cords that are at plugs, at electrical outlets, and at the places  
where the cords exit the equipment.  
Power Sources  
A label on the AC power adapter that is supplied with this equipment indicates the  
correct power source for this equipment. Operate this equipment only from an  
electrical outlet that has the voltage and frequency that the label indicates.  
If you are unsure of the type of power supply to your residence, consult Scientific-  
Atlanta, Inc., or your local power company.  
Grounding  
This equipment may be provided with a three-prong plug. Properly ground (earth)  
this equipment by inserting the plug into a grounded electrical, three-socket outlet. If  
you are unable to insert this plug fully into the outlet, contact an electrician to  
replace your obsolete outlet.  
Damage that Requires Service  
For damage that requires service, unplug this equipment from the electrical outlet.  
Contact your cable service provider when any of the following situations occur:  
There is damage to the power cord or plug  
Liquid enters the equipment  
A heavy object falls on the equipment  
There is exposure to rain or water  
Operation is not normal (the instructions describe the proper operation)  
If you drop this equipment, or damage the cabinet of this equipment  
If this equipment exhibits a distinct change in performance  
Upon completion of any service or repairs to this equipment (cable modem), ask the  
service technician to perform safety checks to determine that the equipment is in  
proper operating condition.  
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Section B  
Before You Begin  
Overview  
Introduction  
When you receive your WebSTAR Cable Modem, you should check the cable  
modem equipment and accessories to verify that each item is in the carton and that  
each item is undamaged. This section provides an equipment checklist.  
In this Section  
This section contains the following topics.  
Topic  
See Page  
Check Your Equipment  
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Check Your Equipment  
Equipment Checklist  
Before you install your cable modem, check the items in the carton. The carton  
contains the following items:  
One WebSTAR Cable Modem  
One Ethernet cable (CAT5/ RJ-45)  
One USB cable  
One power adapter with power cord  
If any of the items listed is missing, please contact SciCare™ Broadband Services at  
1-800-283-2636 for assistance.  
Notes:  
You will need an optional cable signal splitter and additional standard RF coaxial  
cable if you want to connect a VCR, a Digital Home Communications Terminal  
(DHCT) or a set-top converter, or a TV to the same cable connection as your cable  
modem.  
Cables and other equipment needed for telephone service must be purchased  
separately. Contact your cable service provider to inquire about the equipment  
and cables you need for telephone service.  
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Section C  
Front and Back Panel Components  
Overview  
Introduction  
This section provides descriptions of the DPX2203 or EPX2203 front and back panel  
components and the functions of the lights on the front panel.  
In this Section  
This section contains the following topics.  
Topic  
See Page  
WebSTAR Cable Modem Front Panel  
WebSTAR Cable Modem Back Panel  
Functions of the Front Panel Lights  
9
10  
11  
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WebSTAR Cable Modem Front Panel  
Front Panel Components  
The following illustration describes the lights on the front panel of the cable modem.  
1
2
3
4
5
POWER - Indicates that power is being applied  
to the cable modem  
RECEIVE - Indicates that the modem is receiving  
data from the cable network  
1
2
3
4
5
6
7
SEND – Indicates that the modem is sending  
data to the cable network  
CABLE – Indicates that the modem is registered  
on the network and fully operational  
PC - Indicates that an Ethernet/ USB device or PC  
is present  
6
7
LINE 1 – Telephone line 1 status light  
LINE 2 – Telephone line 2 status light  
Notes:  
After the cable modem is successfully  
registered on the network, the POWER (light 1)  
and CABLE (light 4) lights illuminate  
continuously to indicate that the cable modem  
is active and fully operational.  
T10701  
See Functions of the Front Panel Lights, later  
in this guide, for more information on front  
panel lights.  
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WebSTAR Cable Modem Back Panel  
Back Panel Components  
The following illustration describes the back panel components of the cable modem.  
1
2
POWER - Connects the cable modem to the DC output  
of the AC power adapter that is provided with your  
cable modem  
1
2
Note: Only use the power cord and the AC power  
adapter that are provided with your cable modem.  
RESET – Reset-to-Default button (Factory Reset)  
3
CAUTION: This button is for maintenance  
purposes only. Do not use unless instructed to do  
so by your cable or telephone service provider!  
4
5
3
LINE 1/LINE 2 – RJ-11 telephone ports connect to home  
telephone wiring to conventional telephones or fax  
machines  
6
4
5
6
ETHERNET - RJ-45 Ethernet port connects to the  
Ethernet port on your PC  
USB - 12 Mbps USB port connects to the USB port on  
your PC  
T10702  
CABLE IN - F-Connector connects to an active cable  
signal from your cable service provider  
CAUTION: Do not connect your PC to both  
the Ethernet and USB ports at the same time.  
Note: You can connect two separate PCs to the cable  
modem at the same time by connecting one to the  
Ethernet port and one to the USB port. This dual-  
connection requires that you purchase two IP addresses  
from your ISP. See Internet Service: Install the Cable  
Modem, in Section D of this guide.  
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Functions of the Front Panel Lights  
Initial Power Up, Calibration, and Registration  
The following chart illustrates the sequence of steps and the corresponding  
appearance of the front panel lights on the cable modem during power up,  
calibration, and registration on the network. Use this chart to troubleshoot the power  
up, calibration, and registration process of your cable modem.  
Note: After the cable modem completes step 8 (Registration Completed), the  
modem proceeds immediately to Normal Operations, on page 12.  
Front Panel Lights During Initial Power Up, Calibration, and Registration  
Step  
1
2
3
4
5
6
7
8
Front Panel Power Self Downstream Downstream  
Ranging  
Requesting  
IP Address  
Registering  
Registration  
Complete  
Light  
Power  
Up  
On  
Off  
Test  
On  
Scan  
On  
Signal Lock  
1
2
On  
Off  
On  
On  
On  
On  
On  
Receive  
Send  
Cable  
PC1  
On  
Off  
Occasional  
Blinking  
Occasional  
Blinking  
Occasional  
Blinking  
3
4
5
Off  
Off  
Off  
On  
Off  
Off  
Occasional  
Blinking  
Occasional  
Blinking  
Occasional  
Blinking  
On  
On  
On Slow Blinking  
1 Blink  
Momentary  
On  
Off  
Blinking 2  
Blinks  
Blinking 4  
Blinks  
On  
Off, On or  
Blinking  
Off, On or  
Blinking  
Off, On or  
Blinking  
Off, On or  
Blinking  
Off, On or  
Blinking  
Off or On  
6
7
Line 1  
Line 2  
Off  
Off  
On  
On  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
Off  
1The PC light is on whenever a PC is connected to the modem, and it blinks to indicate that data is being transferred. If the  
modem is used to provide telephone service only and is not connected to a PC, the PC light is off.  
Continued on next page  
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Functions of the Front Panel Lights, Continued  
Normal Operations  
The following chart illustrates the appearance of the front panel lights on the cable  
modem during normal operations.  
Front Panel Lights During Normal Operations  
Front Panel Light  
Normal Operations  
1
Power  
Receive  
Send  
On  
2
3
4
5
Blinks – To indicate that the modem is receiving data from the network  
Blinks – To indicate that the modem is sending data to the network  
On  
Cable  
PC  
On – When a single device is connected to either the Ethernet or USB port and no data is  
being sent to or from the modem  
Blinks – When only one Ethernet or USB device is connected and data is being transferred  
between the consumer premise equipment (CPE) and the cable modem  
Off – When no devices are connected to either the Ethernet or USB ports  
Note: With both Ethernet and USB devices connected to the modem at the same time,  
when data is being transferred through only one of the devices (Ethernet or USB), the light  
illuminates continuously. Whenever data is being sent through both data ports (Ethernet  
and USB) simultaneously, the light blinks as described above.  
6
7
Line 1  
Line 2  
On when line 1 is in use  
On when line 2 is in use  
Continued on next page  
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Functions of the Front Panel Lights, Continued  
Special Conditions  
The following chart describes the appearance of the front panel lights on the cable  
modem during special conditions to show that you have been denied network  
access.  
If the front panel lights on the cable modem indicate that network access is denied,  
contact your cable service provider.  
Front Panel Lights During Special Conditions  
Front Panel Lights  
Network access Denied  
1
Power  
Receive  
Send  
Slow Blinking  
1 time per second  
2
3
4
5
Slow Blinking  
1 time per second  
Slow Blinking  
1 time per second  
Cable  
PC  
Slow Blinking  
1 time per second  
Slow Blinking  
1 time per second  
6
7
Line 1  
Line 2  
Off  
Off  
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Section D  
Internet Service Installation  
Internet Service: Overview  
Introduction  
This section provides information and procedures to assist you in placing, installing,  
configuring, operating, and troubleshooting your DPX2203 or EPX2203 Cable  
Modem for high-speed Internet service.  
In this Section  
This section contains the following topics.  
Topic  
See Page  
Internet Service: Before You Begin  
15  
16  
17  
19  
23  
26  
27  
Internet Service: System Requirements  
Internet Service: Install the Cable Modem  
Internet Service: Configure TCP/ IP  
Internet Service: Install USB Drivers  
Internet Service: Frequently Asked Questions  
Internet Service: Troubleshooting  
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Internet Service: Before You Begin  
Contacting Your Local Cable Service Provider  
You need to set up an Internet access account with your local cable service provider  
in order to use your cable modem. When you contact your cable service provider,  
verify the following conditions:  
Does the cable service to your home support two-way, DOCSIS-compatible cable  
modem access? If your cable service provider does not provide two-way service,  
this modem will not be able to communicate with your cable service providers  
Internet access service.  
Do you have an active RF coaxial cable connection near your PC? If your current  
cable input is not conveniently located near your PC, your cable service provider  
can install one.  
Do you have an Internet access account? Your cable service provider will set up  
your Internet access account, and they will become your Internet Service Provider  
(ISP) to enable you to send and receive e-mail, access the World Wide Web, and  
receive other Internet services.  
You may also need to give your cable service provider the following information:  
The serial number of the modem  
The Media Access Control (MAC) address of the modem  
These numbers appear on a bar code label located on the cable modem. The serial  
number consists of a series of alphanumeric characters preceded by S/N. The MAC  
address consists of a series of alphanumeric characters preceded by MAC. The  
following illustration shows a sample bar code label.  
MAC Address  
Serial Number  
T10710  
Selecting a Location for Your Modem  
Select the location for your workspace and consider these recommendations:  
Position your PC and cable modem so that they are located near your cable input.  
There should be plenty of room to guide the cables away from the modem without  
straining or crimping them.  
Airflow around the cable modem should not be restricted.  
Read this users guide thoroughly before installing the cable modem.  
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Internet Service: System Requirements  
Introduction  
This section provides hardware and software requirements for connecting your cable  
modem to a PC for high-speed Internet service.  
Minimum System Requirements for PCs  
A PC with a Pentium MMX 133 processor or greater  
32 MB of RAM  
Web browsing software (Netscape or Internet Explorer)  
CD-ROM drive  
Minimum System Requirements for Macintosh  
MAC OS 7.5  
32 MB of RAM  
System Requirements for an Ethernet Connection  
A PC with Microsoft Windows 95 operating system (or later) with TCP/ IP  
protocol installed, or an Apple Macintosh computer with TCP/ IP protocol  
installed  
An active 10/ 100BaseT Ethernet network interface card (NIC) installed in your PC  
System Requirements for a USB Connection  
A PC with a Microsoft Windows 98, 98SE, ME, 2000, or XP operating system  
A master USB port installed on your PC  
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Internet Service: Install the Cable Modem  
Installation Diagram  
The following diagram illustrates one of the various connection options that are  
available to you.  
Home Telephone Wiring  
Line 2  
RF  
Cable  
Power  
Supply  
Cable  
Splitter  
Power Supply  
Cable-Ready TV,  
VCR, or Set-Top  
Converter  
Home Telephone Wiring  
Line 1  
CH+  
VOLñ  
VOL+  
MENU  
GUIDE  
INFO  
A/B  
POWER  
CHñ  
RF  
Cables  
BYPASS  
PC  
Ethernet  
Cable  
T10703  
Note: Professional installation may be available. Contact your local cable service  
provider for further assistance.  
Continued on next page  
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Internet Service: Install the Cable Modem, Continued  
Installing the Modem for High-Speed Data Service  
The following installation procedures explain how to set up and configure your  
cable modem if you plan to use high-speed data service. If you plan to use your  
modem for telephone service only, go to Telephone Service: Install the Cable  
Modem, later in this guide.  
WARNING: To avoid personal injury or damage to your equipment,  
follow these steps in the exact order shown.  
Follow these steps to install your modem for high-speed data service.  
1.  
2.  
Power off your PC and unplug it from the power source.  
Connect your PC to either the Ethernet port or the USB port using the  
appropriate data cable.  
Note: You can connect two separate PCs to the cable modem at the same time  
by connecting one to the Ethernet port and one to the USB port.  
3.  
Insert the AC power adapter cord into the DC power connector on the back of  
the cable modem, and then plug the power adapter into an AC power source.  
4.  
5.  
Plug in and power on your PC.  
Connect one or both of the telephone ports to your home telephone jack(s), or  
plug a telephone directly into one of the telephone ports.  
6.  
7.  
Connect the active RF coaxial cable to the CABLE IN connector.  
Note: Use an optional cable signal splitter to add a TV, a DHCT or set-top  
converter, or a VCR.  
The cable modem will then begin an automatic search to locate and sign on to  
the broadband data network.  
Note: This process may take up to 5 minutes. The modem will be ready for  
use when the CABLE light on the front panel stops blinking and illuminates  
continuously.  
8.  
Your next step is to configure the modem. Choose one of the following  
options:  
To configure the TCP/ IP protocol for Ethernet, go to Configure TCP/IP,  
next in this guide.  
To install the USB Drivers for USB, go to Install USB Drivers, later in this  
guide.  
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Internet Service: Configure TCP/IP  
Introduction  
This section contains instructions for configuring the WebSTAR Cable Modem to run  
in Microsoft Windows or Macintosh environments. In addition, the TCP/ IP protocol  
in a Microsoft Windows environment is different for each Microsoft Windows 95, 98,  
98SE, ME, 2000, and XP version. Go to the appropriate section and follow the  
instructions to configure the TCP/ IP protocol.  
Microsoft Windows 95, 98, 98SE, and ME  
Follow the instructions in this section to configure the WebSTAR cable modem for  
TCP/ IP in a Microsoft Windows 95, 98, 98SE, and ME environment.  
Configuring the TCP/IP Protocol for Microsoft Windows 95, 98, 98SE, and ME  
Note: Before you install your cable modem, you need to have either an Ethernet  
Network Interface Card (NIC) with TCP/ IP communications protocol or a USB  
network interface installed on your system.  
Follow these steps to install and configure the TCP/ IP protocol for Microsoft  
Windows 95, 98, 98SE, and ME environments.  
1.  
Click Start, select Settings, and choose Control Panel.  
Result: The Control Panel window opens.  
2.  
In the Control Panel window, double-click the Network icon.  
Result: A list of installed network components appears.  
3.  
4.  
Under the Configuration tab, read the list of installed network components to  
verify your PC contains the TCP/ IP protocol.  
Does your PC have the TCP/ IP protocol?  
If yes, go to step 8.  
If no, click Add.  
5.  
6.  
7.  
8.  
9.  
Click Protocol, and then click Add.  
In the Manufacturers list, click Microsoft.  
In the Network Protocols list, click TCP/IP, and then click OK.  
Click the TCP/IP Ethernet Adapter protocol, and then choose Properties.  
Click the IP Address tab, and then select Obtain an IP address automatically.  
10. Click the Gateway tab and verify that these fields are empty. If they are not  
empty, highlight and delete all information from the fields.  
Continued on next page  
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Internet Service: Configure TCP/IP, Continued  
11. Click the DNS Configuration tab, and then select Disable DNS.  
12. Click OK.  
Result: The Copying Files window opens.  
13. When the system finishes copying the files, click OK.  
14. Close all networking windows.  
15. When the System Settings Change dialog box opens, click YES to restart your  
computer.  
Results:  
The computer restarts.  
The TCP/ IP protocol is now configured on your PC and your cable  
modem and it is ready for use.  
Note: If you cannot access the Internet, contact your cable service provider  
for further assistance.  
Renewing the IP Address for Microsoft Windows 95, 98, 98SE, and ME  
If your PC cannot access the Internet after the cable modem is online, it is possible  
that your PC did not renew its IP address. Follow these steps to renew the IP address  
on your PC.  
1.  
2.  
Click Start, and then click Run to open the Run window.  
Type winipcfg in the Open field, and click OK to execute the winipcfg  
command.  
Result: The IP Configuration window opens.  
3.  
Click the down arrow to the right of the top field, and select the Ethernet  
adapter that is installed on your PC.  
Result: The IP Configuration window displays the Ethernet adapter  
information.  
4.  
5.  
Click Release, and then click Renew.  
Result: The IP Configuration window displays a new IP address.  
Click OK to close the IP Configuration window, you have completed this  
procedure.  
Notes:  
If you have Microsoft Windows 2000, NT, or XP, consult your users  
manual for the procedure for renewing the IP address on your PC.  
If you cannot access the Internet, contact your cable service provider for  
further assistance.  
Continued on next page  
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Internet Service: Configure TCP/IP, Continued  
Microsoft Windows 2000  
Follow these steps to install and configure the TCP/ IP protocol for Microsoft  
Windows 2000 environments.  
1.  
Click Start, select Settings, and choose Network and Dial-up Connections.  
Result: The Network and Dial-up Connections window opens.  
2.  
In the Network and Dial-up Connections window, double-click the Local  
Area Connection icon.  
Result: The Local Area Connection Status window opens.  
In the Local Area Connection Status window, click Properties.  
Result: The Local Area Connection Properties window opens.  
3.  
4.  
In the Local Area Connection Properties window, click Internet Protocol  
(TCP/IP), and then click Properties.  
Result: The Internet Protocol (TCP/ IP) Properties window opens.  
5.  
6.  
In the Internet Protocol (TCP/ IP) Properties window select both Obtain an IP  
address automatically, and Obtain DNS server address automatically; then,  
click OK.  
When the Local Network window opens, click Yes to restart your computer.  
Results:  
The computer restarts.  
The TCP/ IP protocol is now configured on your PC and your cable  
modem and it is ready for use.  
Note: If you cannot access the Internet, contact your cable service provider  
for further assistance.  
Microsoft Windows XP  
Follow these steps to install and configure the TCP/ IP protocol for Microsoft  
Windows XP environments.  
1.  
2.  
3.  
Click Start, select Connect to, and choose Show all connections. The  
Network Connections window opens.  
In the LAN or High-Speed Internet section, double-click the Local Area  
Connection icon. The Local Area Connection window opens.  
Follow steps 3 through 6 of the previous procedure, Microsoft Windows 2000,  
in this section.  
Continued on next page  
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Internet Service: Configure TCP/IP, Continued  
Macintosh  
Follow these steps to verify that the TCP/ IP communications protocol and an  
Ethernet device are installed on your Macintosh computer.  
1.  
Click the Apple icon in the upper left corner of the Finder. Scroll down to  
Control Panels, and then click TCP/IP.  
2.  
Click Edit on the Finder (gray bar) at the top of the screen. Scroll down to the  
bottom of the menu, and then click User Mode.  
3.  
4.  
Click Advanced in the User Mode window, and then click OK.  
Click the Up/Down selector arrows located to the right of the Connect Via  
section of the TCP/ IP window, and then click Using DHCP Server.  
5.  
Click Options in the TCP/ IP window, and then click Active in the TCP/ IP  
Options window.  
Note: In some cases, the Load only when needed option will not appear. If it  
appears, select the option. A check mark appears in the option.  
6.  
7.  
Verify that the Use 802.3 option located in the upper right-hand corner of the  
TCP/ IP window is unchecked. If there is a check mark in the option, deselect  
the option, and then click Info in the lower left-hand corner.  
Is there a Hardware Address listed in this window?  
If yes, click OK. To close the TCP/IP Control Panel window, click File, and  
then scroll down to click Close. You have completed this procedure.  
If no, you must power down your Macintosh.  
8.  
9.  
With the power off, simultaneously press and hold down the Command  
(Apple), Option, P, and R keys on your keyboard. Keeping those keys  
pressed down, power on your Macintosh. The computer will start, and you  
will hear the Apple chime; do not release these keys.  
Continue pressing these keys for up to three chimes, then release the keys and  
allow the computer to restart.  
10. When your computer fully reboots, repeat steps 1 through 7 to verify that all  
TCP/ IP settings are correct. If your computer still does not have a Hardware  
Address, contact your authorized Apple dealer or Apple technical support  
center for further assistance.  
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Internet Service: Install USB Drivers  
Introduction  
This section contains instructions for installing the WebSTAR cable modem USB  
drivers if your PC is equipped with a USB interface and a Microsoft Windows 98,  
98SE, ME, 2000, or XP operating system. The USB driver installation procedures are  
different for each operating system. Follow the appropriate instructions in this  
section for your operating system.  
Note: If your PC does not have a USB interface, you may skip this section.  
Microsoft Windows 98, 98SE, or ME  
Follow these steps to install the WebSTAR cable modem USB drivers for Microsoft  
Windows 98, 98SE, ME environments.  
1.  
Insert the USB Cable Modem Driver Installation Disk into the CD-ROM  
drive of your PC.  
2.  
Wait until the POWER and CABLE lights on the cable modem appear solid  
green; then, plug the USB cable into the USB port on your PC.  
Result: The Add New Hardware Wizard window opens.  
3.  
4.  
Click Next.  
In the Add New Hardware Wizard window, select Search for the best driver  
for your device (Recommended), then click Next.  
5.  
6.  
7.  
In the Add New Hardware Wizard window, select CD-ROM drive, and then  
click Next.  
In the Add New Hardware Wizard window, select The updated driver  
(Recommended), and then click Next.  
In the Add New Hardware Wizard window, click Next.  
Results:  
The Copying Files window opens.  
After 10 to 20 seconds have passed, the Add New Hardware Wizard  
window reopens.  
Click Finish.  
8.  
9.  
Result: The System Settings Change window opens. The driver installation is  
complete.  
Click Yes to restart your computer.  
Results:  
The computer restarts.  
The USB drivers are now installed on your PC and your cable modem is  
ready for use.  
Note: If you cannot access the Internet, contact your cable service provider  
for further assistance.  
Continued on next page  
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Internet Service: Install USB Drivers, Continued  
Microsoft Windows 2000  
Follow these steps to install the WebSTAR cable modem USB drivers for Microsoft  
Windows 2000 environments.  
1.  
Insert the USB Cable Modem Driver Installation Disk into the CD-ROM  
drive of your PC.  
2.  
Wait until the POWER and CABLE lights on the cable modem appear solid  
green; then, plug the USB cable into the USB port on your PC.  
Result: The Found New Hardware Wizard window opens.  
3.  
4.  
In the Found New Hardware Wizard window, click Next.  
In the Found New Hardware Wizard window, select Search for a suitable  
driver for my device (recommended), then click Next.  
5.  
6.  
In the Found New Hardware Wizard window, select CD-ROM drives, and  
then click Next.  
In the Found New Hardware Wizard window, click Next.  
Result: The system searches for the driver file for your hardware device.  
7.  
8.  
After the system finds the USB driver, the Digital Signature Not Found  
window opens displaying a confirmation message to continue the installation.  
Click Yes to continue the installation.  
Result: The Found New Hardware Wizard window reopens with a message  
that the installation is complete.  
9.  
Click Finish to close the Found New Hardware Wizard window.  
Result: The USB drivers are installed on your PC and your cable modem is  
ready for use.  
Note: If you cannot access the Internet, contact your cable service provider  
for further assistance.  
Continued on next page  
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Internet Service: Install USB Drivers, Continued  
Microsoft Windows XP  
Follow these steps to install the WebSTAR cable modem USB drivers for Microsoft  
Windows XP environments.  
1.  
Insert the USB Cable Modem Driver Installation Disk into the CD-ROM  
drive of your PC.  
2.  
Wait until the POWER and CABLE lights on the cable modem appear solid  
green; then, plug the USB cable into the USB port on your PC.  
Result: The Found New Hardware Wizard window opens.  
3.  
4.  
In the Found New Hardware Wizard window, select Install from a list or  
specific location (Advanced), then click Next.  
In the Found New Hardware Wizard window, select Search removable  
media (floppy, CD-ROM), and then click Next.  
Result: The Hardware Installation window opens.  
5.  
6.  
In the Hardware Installation window, click Continue Anyway to continue the  
installation.  
Result: The Found New Hardware Wizard window reopens with a message  
that the installation has finished.  
Click Finish to close the Found New Hardware Wizard window.  
Result: The USB drivers are installed on your PC and your cable modem is  
ready for use.  
Note: If you cannot access the Internet, contact your cable service provider  
for further assistance.  
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Internet Service: Frequently Asked Questions  
Introduction  
This section provides answer to frequently asked questions about cable modem  
Internet service. For questions about cable modem telephone service, see Telephone  
Service: Frequently Asked Questions, later in this guide.  
Frequently Asked Questions  
Q. What if I dont subscribe to cable TV?  
A. If cable TV is available in your area, data service may be made available with or  
without subscribing to cable TV service. Contact your local cable service provider  
for complete information on cable services, including high-speed Internet access.  
Q. How do I arrange for installation?  
A. Professional installation from your cable service provider may be provided. A  
professional installation ensures proper cable connection to the modem and to your  
PC, and this installation ensures proper configuration of all hardware and software  
settings. Contact your cable service provider for more information about installation.  
Q. How does the WebSTAR Cable Modem connect to my computer?  
A. The cable modem connects to the USB port or the 10/ 100BaseT Ethernet port on  
your PC. If your PC is not equipped with an Ethernet interface, an Ethernet card is  
available from your local PC or office supply retailer, or from your cable service  
provider.  
Q. Once my cable modem is connected, how do I access the Internet?  
A. Your local cable service provider becomes your Internet Service Provider (ISP),  
offering a wide range of services including e-mail, chat, news, and information  
services. Your cable service provider will provide the software you will need.  
Q. Can I watch TV and surf the Internet at the same time?  
A. Absolutely! If you subscribe to cable television service, you can watch TV and use  
your cable modem at the same time by connecting your TV and your cable modem  
to the cable network using an optional cable signal splitter.  
Q. Can I run more than one device on the modem?  
A. Yes—a single WebSTAR cable modem will support up to 31 Ethernet devices  
utilizing a user-supplied Ethernet hub that you can purchase at your local PC or  
office supply retailer. Another user at your location can simultaneously connect to  
the USB port on the cable modem. Contact your cable service provider for further  
assistance.  
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Internet Service: Troubleshooting  
Common Troubleshooting Suggestions  
The modem does not register an Ethernet connection.  
Even new computers do not always have Ethernet capabilities. Be sure to verify that  
your computer has a 10/ 100BaseT Ethernet card and that the Ethernet driver  
software is properly installed. If you purchase and install an Ethernet card, follow  
the installation instructions very carefully.  
The modem does not register an Ethernet connection after connecting to a hub.  
If you are connecting multiple PCs to the cable modem, you should first connect the  
modem to the up-link port of the hub. The LINK light of the hub illuminates  
continuously.  
The modem does not register a cable connection.  
The modem works with a standard, 75-ohm, RF coaxial cable. If you are using a  
different cable, your cable modem will not function properly. Contact your cable  
service provider to determine whether you are using the correct cable.  
Verify that you have followed the procedure for Renewing the IP address for  
Microsoft Windows 95, 98, 98SE, or ME PCs earlier in this guide.  
Note: If you have Microsoft Windows 2000, NT, or XP, consult your users  
manual for the procedure for renewing the IP address on your PC.  
Your USB interface may be malfunctioning. Refer to the troubleshooting  
information in your USB documentation.  
Continued on next page  
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Internet Service: Troubleshooting, Continued  
Check and Correct  
If your cable modem does not operate as expected, the following tips may help. If  
you need further assistance, contact your cable service provider.  
Verify that the plug to your cable modem AC adapter is properly inserted into an  
electrical outlet.  
Verify that your cable modem AC adapter is not plugged into an electrical outlet  
that is controlled by a wall switch. If a wall switch controls the electrical outlet,  
make sure the switch is in the ON position.  
Verify that the POWER and CABLE lights on the front panel of your cable modem  
are shining.  
Verify that all cables are properly connected, and that you are using the correct  
cables.  
Verify that your cable service is active and that it supports two-way service.  
Verify that your TCP/ IP is properly installed and configured if you are using the  
Ethernet connection.  
Verify that you have followed the procedure for Installing the USB Drivers for  
Microsoft Windows 98, 98SE, ME, 2000, and XP, earlier in this guide, if you are  
using the USB connection.  
Verify that you have called your cable service provider and given them the serial  
number and MAC address of your cable modem.  
If you are using a cable signal splitter so that you can connect the cable modem to  
other devices, remove the splitter and reconnect the cables so that the cable  
modem is connected directly to the cable input. If the cable modem now functions  
properly, the cable signal splitter may be defective and may need to be replaced.  
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Section E  
Telephone Service Installation  
Telephone Service: Overview  
Introduction  
This section provides procedures to assist you in placing, installing, configuring,  
operating, and troubleshooting your DPX2203 or EPX2203 Cable Modem for  
telephone service.  
In this Section  
This section contains the following topics.  
Topic  
See Page  
Telephone Service: Before You Begin  
30  
32  
33  
36  
37  
Telephone Service: Telephone Requirements  
Telephone Service: Install the Cable Modem  
Telephone Service: Frequently Asked Questions  
Telephone Service: Troubleshooting  
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Telephone Service: Before You Begin  
Contacting Your Local Cable Service Provider  
You need to set up a telephone account with your local cable service provider in  
order to use your cable modem for telephone service. When you contact your cable  
service provider, verify the following conditions:  
Does the cable service to your home support two-way, DOCSIS-compatible cable  
modem access? If your cable service provider does not provide two-way service,  
this modem will not be able to communicate with your cable service providers  
Internet access and telephone services.  
Can you transfer your existing telephone numbers from another telephony service  
provider to your current cable telephony service provider? In some areas, you may  
be able to transfer your existing telephone numbers, or your cable telephony  
service provider will assign a new telephone number for each current or  
additional active telephone line. Discuss these options with your cable telephony  
service provider.  
You may also need to give your cable service provider the following information:  
The serial number of the modem  
The Media Access Control (MAC) address of the modem  
These numbers appear on a bar code label located on the cable modem. The serial  
number consists of a series of alphanumeric characters preceded by S/N. The MAC  
address consists of a series of alphanumeric characters preceded by MAC. The  
following illustration shows a sample bar code label.  
MAC Address  
Serial Number  
T10710  
Continued on next page  
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Telephone Service: Before You Begin, Continued  
Selecting a Location for Your Modem  
You should work with your cable telephony service provider to choose the best  
location for your cable modem. Consider these recommendations:  
Choose a location close to your computer if you will also use the cable modem for  
high-speed Internet service.  
Choose a location that is near an existing RF coaxial connection to eliminate the  
need for an additional RF coaxial outlet.  
Choose a location for the cable modem that is adjacent to your telephone  
equipment if you are using only one or two pieces of telephone equipment.  
Note: If you are using the cable modem to provide service to several telephones, a  
professional installer can connect the cable modem to your existing home  
telephone wiring. To minimize changes to the home telephone wiring, you may  
want to locate the cable modem near an existing telephone outlet. See Install the  
Cable Modem to Provide Telephone Service, later in this guide for further  
instructions.  
Choose a location that is relatively protected from accidental disturbance or harm,  
such as a closet, basement, or other protected area.  
Choose a location so that there is plenty of room to guide the cables away from the  
modem without straining or crimping them.  
Airflow around the cable modem should not be restricted.  
Read this users guide thoroughly before installing the cable modem.  
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Telephone Service: Telephone Requirements  
Introduction  
This section provides hardware and software requirements for utilizing your cable  
modem for telephone service.  
Number of Telephone Devices  
The RJ-11 telephone-style connectors on the cable modem can each provide  
telephone service to multiple telephones, fax machines, and analog modems. The  
maximum number of telephone devices connected to each RJ-11 port is limited by  
the total Ringing Load of the telephone devices that are connected. Many telephone  
devices are marked with a Ringer Equivalent Number (REN). Each telephone port  
on the cable modem can support up to a 5 REN load. The sum of the REN load on all  
of the telephone devices attached to each port must not exceed 5 REN.  
Telephone Device Types  
You can use telephone devices that are not labeled with a REN number, but the  
maximum number of attached telephone devices cannot be accurately calculated.  
With telephone devices that are not labeled, each device should be connected and  
the ring signal should be tested before adding additional devices. If too many  
telephone devices are attached and the ring signal can no longer be heard, telephone  
devices should be removed until the ring signal works properly.  
Telephones, fax machines, and other telephone devices should use the center 2 pins  
of the RJ-11 connectors to connect to the cable modem telephone ports. Some  
telephones use other pins on the RJ-11 connectors and require adapters in order to  
work.  
Dialing Requirements  
All of your telephones must support Dual Tone Multi-Frequency (DTMF) touch-tone  
dialing.  
Important: Pulse dialing is not supported.  
Telephone Wiring Requirements  
The cable modem is designed to support interior telephone wiring. The maximum  
distance from the unit to the most distant telephone device must not exceed 1000 feet  
(300 meters). Use 26-gauge twisted-pair, or larger, telephone wiring.  
Important: Connection to an existing or a new permanently installed home  
telephone wiring network must be done by a qualified installer.  
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Telephone Service: Install the Cable Modem  
Introduction  
The cable modem can be used to provide telephone service for one or two telephone  
lines. This section describes how to connect a single telephone, fax machine, analog  
telephone modem, or other telephone device to each telephone port on the cable  
modem.  
Important: Connecting the cable modem permanently to the installed home  
telephone wiring is not covered by this document.  
Installing the Cable Modem to Provide Telephone Service  
Heed the following warnings and caution, and then follow the subsequent  
installation procedures to ensure proper cable modem installation and configuration  
for providing telephone service.  
WARNING:  
Telephone connections to an installed home telephone wiring network must  
be done by a qualified installer. The cable telephone service provider may  
offer professional installation and connection to the home telephone wiring  
network. A fee may be charged for this service.  
Hazardous electrical voltages can exist on the telephone ports on the cable  
modem and can be present on any connected wiring. Telephone wiring and  
connections must be properly insulated to prevent electrical shock.  
Disconnect power from the cable modem before attempting to modify any  
connected telephone wiring.  
To avoid personal injury, follow the steps on page 35 in the exact order  
shown.  
CAUTION: To prevent possible damage to equipment, disconnect any  
other telephone service before connecting your cable modem to the same wires.  
Continued on next page  
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Telephone Service: Install the Cable Modem, Continued  
Installation Diagram  
The following diagram illustrates one of the various connection options that are  
available to you.  
Home Telephone Wiring  
Line 2  
RF  
Cable  
Power  
Supply  
Cable  
Splitter  
Power Supply  
Cable-Ready TV,  
VCR, or Set-Top  
Converter  
Home Telephone Wiring  
Line 1  
CH+  
VOLñ  
VOL+  
MENU  
GUIDE  
INFO  
A/B  
POWER  
CHñ  
RF  
Cables  
BYPASS  
PC  
Ethernet  
Cable  
T10703  
Note: Professional installation may be available. Contact your local cable service  
provider for further assistance.  
Continued on next page  
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Telephone Service: Install the Cable Modem, Continued  
Installing the Cable Modem  
Follow these steps to install the cable modem to provide telephone service.  
1.  
Connect a telephone, fax machine, or analog modem to each of the  
appropriate RJ-11 ports on the cable modem.  
Notes:  
The cable modem provides one line of telephone service on each of the  
RJ-11 connectors.  
Service must be set up and enabled by the cable telephone service  
provider.  
The two center conductors (pins 3 and 4) on the RJ-11 connector provide  
electrical connections to directly attached telephone devices or to a  
permanently installed in-home telephone wiring network.  
The telephone port labeled Line 1 also supports multi-line telephone  
devices. Line 1 is supported on pins 3 and 4, and Line 2 is supported on  
pins 2 and 5.  
The use of telephones that require electrical connections to other RJ-11  
pins requires an adapter.  
2.  
3.  
After all telephone connections are complete, insert the AC power adapter  
cord into the DC power connector on the back of the cable modem, and then  
plug the power adapter into an AC power source.  
Connect the active RF coaxial cable to the CABLE IN connector on the back of  
the cable modem.  
Note: Use an optional cable signal splitter to add a TV, a DHCT or set-top  
converter, or a VCR.  
4.  
5.  
The cable modem begins an automatic search to locate and sign on to the  
network that provides the telephone service.  
Note: This process may take up to 5 minutes. The modem will be ready for  
use when the CABLE light on the front panel stops blinking and illuminates  
continuously.  
Test your telephone service by lifting the receiver of each attached telephone  
to verify that dial tone can be heard and that you can make and receive  
telephone calls.  
Note: The Line 1 or the Line 2 front panel light also illuminates when the  
attached device is “off the hook.”  
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Telephone Service: Frequently Asked Questions  
Introduction  
This section provides answers to frequently asked questions regarding cable modem  
telephone service. For questions about cable modem internet service, see Internet  
Service: Frequently Asked Questions, earlier in this guide.  
Frequently Asked Questions  
Q. What if I don't subscribe to telephone service from my cable operator, can I still use the  
cable modem to make and receive phone calls?  
A. No. Telephone service is enabled for each telephone port on the cable modem by  
the cable telephone service provider. Contact your cable telephone service provider  
to get telephone service through the cable modem.  
Q. How do I arrange for installation?  
A. Professional installation from your cable service provider may be provided. A  
professional installer can connect the telephone service to your existing telephone  
wiring in your home or install new wiring if needed. Professional installation also  
ensures proper cable connection to the modem and to your PC, and ensures proper  
configuration of all hardware and software settings. Contact your cable telephone  
service provider for more information about installation.  
Q. Can I use my existing phone number with the cable modem?  
A. Telephone numbers are portable in some areas. Contact your telephone service  
provider for more information about using an existing telephone number.  
Q. Do I automatically receive high-speed Internet service with the cable modem?  
A. Your cable modem may be used to provide telephone service, high-speed  
Internet service, or both services. Your cable service provider enables Internet  
service. Contact your cable service provider for more information if you are not  
currently subscribing to Internet service.  
Q. How many telephones can I connect?  
A. The RJ-11 telephone-style connectors on the cable modem can each provide  
telephone service to multiple telephones, fax machines, and analog modems. The  
maximum number of telephone devices connected to each RJ-11 port is limited by  
the total Ringing Load of the telephone devices that are connected. Many telephone  
devices are marked with a Ringer Equivalent Number (REN). Each telephone port  
on the cable modem can support up to a 5 REN load. The sum of the REN load on all  
of the telephone devices attached to each port must not exceed 5 REN.  
Q. Can I surf the Internet and make telephone calls at the same time?  
A. Absolutely! Telephone service is provided separately from Internet data services.  
Internet surfing and other data services do not affect the quality of your telephone  
calls. If these services are enabled by your cable service provider, you can make  
telephone calls and surf the net at the same time.  
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Telephone Service: Troubleshooting  
Common Troubleshooting Suggestions  
The modem does not register a cable connection.  
The modem works with a standard, 75-ohm, RF coaxial cable. If you are using a  
different cable, your cable modem will not function properly. Contact your cable  
service provider to determine whether you are using the correct cable.  
There is no dial tone when I lift the telephone handset.  
Your telephone service may not be enabled from your cable telephone service  
provider. Contact your cable telephone service provider for more information.  
Your telephone wiring may be connected to the wrong RJ-11 port on the cable  
modem. The cable modem has two telephone ports. Verify that you are connected  
to the correct telephone port.  
There may be a problem with your home telephone wiring. Use a telephone and  
connect directly to the same RJ-11 port on the back of the unit. If the dial tone is  
working here but does not work at other locations in the home, a professional may  
need to diagnose and repair a problem with your telephone wiring.  
There may be a problem with your telephone set. Use a different telephone set  
and listen to hear dial tone.  
Check and Correct  
If your cable modem does not operate as expected, the following tips may help. If  
you need further assistance, contact your cable service provider.  
Verify that the plug to your cable modem AC adapter is properly inserted into an  
electrical outlet.  
Verify that your cable modem AC adapter is not plugged into an electrical outlet  
that is controlled by a wall switch. If a wall switch controls the electrical outlet,  
make sure the switch is in the ON position.  
Verify that the POWER and CABLE lights on the front panel of your cable modem  
are on.  
Verify that all cables are properly connected, and that you are using the correct  
cables.  
Verify that your cable service is active and that it supports two-way service.  
Verify that you have called your cable service provider and given them the serial  
number and MAC address of your cable modem, if your cable service provider  
requests this information.  
If you are using a cable signal splitter so that you can connect the cable modem to  
other devices, remove the splitter and reconnect the cables so that the cable  
modem is connected directly to the cable input. If the cable modem now functions  
properly, the cable signal splitter may be defective and may need to be replaced.  
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Notices  
Trademarks  
Scientific-Atlanta and the Scientific-Atlanta ARCs logo are registered trademarks of  
Scientific-Atlanta, Inc. WebSTAR, DPX2203, EPX2203, and “Bringing the Interactive  
Experience Home” are trademarks of Scientific-Atlanta, Inc.  
Other trademarks listed herein are the property of their respective owners.  
Disclaimer  
Scientific-Atlanta, Inc. assumes no responsibility for errors or omissions that may  
appear in this guide. Scientific-Atlanta reserves the right to change this guide at any  
time without notice.  
Documentation Copyright Notice  
© 2003 Scientific-Atlanta, Inc. All rights reserved.  
Printed in the United States of America.  
Information in this document is subject to change without notice. No part of this  
document may be reproduced in any form without the express written permission of  
Scientific-Atlanta, Inc.  
Software Use Notice  
The software described in this document is copyrighted and furnished to you under  
a license agreement. You may only use or copy this software in accordance with the  
terms of your license agreement.  
Firmware Use Notice  
The firmware in this equipment is copyrighted. You may only use the firmware in  
the equipment in which it is provided. Any reproduction or distribution of this  
firmware or any portion of it, without express written consent is prohibited.  
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FCC Compliance  
United States FCC Compliance  
Note: 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 Scientific-Atlanta could  
void the users 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.  
FCC Declaration of Conformity  
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.  
WebSTAR Cable Modem  
Models DPX2203 and EPX2203  
Scientific-Atlanta, Inc.  
5030 Sugarloaf Parkway  
Lawrenceville, Georgia 30044 USA  
Telephone: 770-236-1077  
Continued on next page  
4004041 Rev A  
WebSTAR DPX2203 or EPX2203 VoIP Cable Modem Users Guide  
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FCC Compliance, Continued  
Canada EMI Regulation  
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.  
FCC Part 68  
The Federal Communications Commission (FCC) of the United States restricts  
specific uses of modems, and places registration responsibilities on both the  
manufacturer and the individual user.  
1.  
The modem may not be connected to a party line or to a coin-operated  
telephone.  
2.  
3.  
The modem manufacturer must make any repairs to the modem to maintain  
valid FCC registration.  
Notification to the telephone company is no longer required prior to  
connecting registered equipment, but upon request from the telephone  
company, the user shall tell the telephone company which line the equipment  
is connected to as well as the registration number and ringer equivalence  
number of the registered protective circuitry. FCC information is printed on a  
label on the bottom of the modem.  
Continued on next page  
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WebSTAR DPX2203 or EPX2203 VoIP Cable Modem Users Guide  
4004041 Rev A  
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FCC Compliance, Continued  
IC (Industry Canada) Notice  
Notice: The Industry Canada (formerly Canadian Department of Communications)  
label identifies certified equipment. This certification means that the equipment  
meets certain telecommunications network protective, operational, and safety  
requirements. The department does not guarantee the equipment will operate to the  
users satisfaction.  
Before installing this equipment, users should ensure that it is permissible to be  
connected to the facilities of the local telecommunications company. The equipment  
must also be installed using an acceptable method of connection. In some cases, the  
companys inside wiring associated with a single-line individual service may be  
extended by means of a certified connector assembly (telephone extension cord). The  
customer should be aware that compliance with the above conditions may not  
prevent degradation of service in some situations.  
Repairs to certified equipment should be made by an authorized Canadian  
maintenance facility designated by the supplier. Any repairs or alterations made by  
the user may give the telecommunications company cause to request the user to  
disconnect the equipment. Users should ensure for their own protection that the  
electrical ground connections of the power utility, telephone lines and internal  
metallic water pipe system, if present, are connected together. This precaution may  
be particularly important in rural areas.  
CAUTION:  
Users should not attempt to make such connections themselves, but should  
contact the appropriate electric inspection authority, or electrician, as  
appropriate.  
4004041 Rev A  
WebSTAR DPX2203 or EPX2203 VoIP Cable Modem Users Guide  
41  
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For Information  
If You Need Technical Assistance  
If you need technical assistance, contact your cable service provider.  
© 2003 Scientific-Atlanta, Inc. All rights reserved.  
42  
WebSTAR DPX2203 or EPX2203 VoIP Cable Modem Users Guide  
4004041 Rev A  
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Scientific-Atlanta, Inc.  
770.236.5000  
5030 Sugarloaf Parkway, Box 465447  
Lawrenceville, GA 30042  
www.scientificatlanta.com  
This document includes various trademarks of Scientific-Atlanta, Inc. Please see the Notices section of this  
document for a list of the Scientific-Atlanta trademarks used in this document. All other trademarks shown  
are trademarks of their respective owners.  
Product and service availability is subject to change without notice.  
© 2003 by Scientific-Atlanta, Inc. All rights reserved.  
July 2003 Printed in USA  
Part Number 4004041 Rev A  
Download from Www.Somanuals.com. All Manuals Search And Download.  

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