October 2006
DPC2203 and EPC2203 VOIP Cable Modem User's Guide

In This Document

IMPORTANT SAFETY INFORMATION...2 FCC Compliance....7 What's In the Carton?....10 Front Panel Description...12 Back Panel Description...14 Where Is the Best Location for My Cable Modem?...16 What Are the System Requirements for Internet Service?..17 How Do I Set Up My High-Speed Internet Access Account?..18 How Do I Connect My Devices to Use the Internet?..19 How Do I Configure TCP/IP Protocol?...21 How Do I Install USB Drivers?...24 What Are the Requirements for Ethernet Network Devices?..26 How Do I Select and Place Ethernet Network Devices?..27 How Do I Connect Ethernet Network Devices?...28 What Are the Requirements for USB Network Devices?.30 How Do I Select and Place USB Network Devices?..31 How Do I Connect USB Network Devices?...32 How Do I Troubleshoot My Internet Service Installation?..34 How Do I Use My Modem for Telephone Service?..36 Where Do I Place My Modem for Telephone Service?..37 What Are the Requirements for Telephone Service?..38 How Do I Install the Modem for Telephone Service?..39 Telephone Service Frequently Asked Questions..42 Having Difficulty?....44 Tips for Improved Performance....46 How Do I Maintain the Battery (Optional Model Only)..47 How Do I Mount the Modem on a Wall? (Optional)..50 Front Panel LED Status Indicator Functions..53 Notices....55
IMPORTANT SAFETY INFORMATION

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.

20060608SICM-EN

Heed All Warnings
Adhere to all warnings on the product and in the operating instructions.
Read, Retain, and Follow These Instructions
Carefully read all safety and operating instructions before operating this product. Follow all operating instructions that accompany this product. Retain the instructions for future use. Give particular attention to all safety precautions.

Comply with Warnings

Avoid electric shock. Comply with all warnings and cautions in the operating instructions, as well as those that are affixed to this product.

4012160 Rev B

Power Warnings

Providing a Power Source

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.
Grounding This Product (U.S.A. and Canada Only)
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 is equipped with either a three-prong (grounding pin) safety plug or a twoprong (polarized) safety plug, do not defeat the safety purpose of the polarized or grounding-type plug. Follow these safety guidelines to properly ground this product: For a 3-prong plug (consists of two blades and a third grounding prong), insert the plug into a grounded mains, 3-prong outlet. Note: This plug fits only one way. The grounding prong is provided for your safety. If you are unable to insert this plug fully into the outlet, contact your electrician to replace your obsolete outlet. For a 2-prong plug (consists of one wide blade and one narrow blade), insert the plug into a polarized mains, 2-prong outlet in which one socket is wider than the other. Note: If you are unable to insert this plug fully into the outlet, try reversing the plug. The wide blade is provided for your safety. If the plug still fails to fit, contact an electrician to replace your obsolete outlet.

Overloading

WARNING: Avoid electric shock and fire hazard! Do not overload mains AC outlets and extension cords. For products that require battery power or other power sources to operate them, refer to the operating instructions for those products. Do not overload electrical outlets, extension cords, or integral convenience receptacles as this can result in a risk of fire or electric shock. For products that require battery power or other sources to operate, refer to the operating instructions for that product.
Preventing Power Cord Damage
Protect the power cord from being walked on or pinched, particularly at plugs, convenience receptacles, and the point where they exit from the apparatus. Arrange all power cords so that pets cannot walk on or disturb the cords. Do not place objects on or lean objects against the cords, which can damage the cords.
Handling Replaceable Battery Pack
This product contains replaceable battery pack. 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.

Usage Warnings

Providing Ventilation
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 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. Do not use this apparatus near water.
Selecting a Proper Location
WARNING: Avoid personal injury and damage to this product! An unstable surface may cause this product to fall. Place this product on a stable surface. The surface must support the size and weight of this product. Any mounting accessory used must be recommended by the manufacturer. The product should be mounted to a wall or ceiling only as recommended by the manufacturer. Important! The power cord is the mains power supply disconnect device. Place this product in a location that is close enough to an electrical outlet and where the power cord is easily accessible to be disconnected from the wall outlet or from the rear panel of the product.

Cleaning This Product

WARNING: Avoid electric shock! Unplug this product before cleaning. Clean only with a dry cloth. Before cleaning this product, unplug it from the electrical outlet. Clean this product 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.
Protecting This Product from Foreign Objects and Water or Moisture Damage
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. Do not expose this product to rain or moisture. Do not place objects filled with liquid, such as vases, on this product. 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 product to liquids or moisture. Do not place this product on a wet surface. Do not spill liquids on or near this product. Do not use this product near water (such as a bathtub, washbowl, sink, or laundry tub), in a wet basement, or near a swimming pool.

Accessories Warnings

WARNING: Avoid any potential for electric shock or fire. Only use attachments/accessories specified by the manufacturer. Do not use accessories or attachments with this product unless recommended by your service provider or manufacturer.

Service Warnings

Servicing This Product
WARNING: Avoid electric shock! Opening or removing the cover may expose you to dangerous voltages. This product contains no user-serviceable parts. Refer all servicing to qualified service personnel. Do not open the cover of this product. If you open the cover, your warranty will be void. Refer all servicing to qualified personnel only. Contact your service provider for instructions.
Obtaining Service for Product Damage
For damage that requires service, unplug this product from the AC outlet. Refer all servicing to your service provider or qualified service personnel. Servicing is required when: The apparatus has been damaged in any way 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 The apparatus does not operate normally The apparatus has been dropped

Checking Product Safety

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.

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. This may prevent damage to the apparatus due to lightning and power-line surges. Plugging this apparatus into a surge protector may reduce the risk of damage.

20060712MDBR

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 Scientific-Atlanta, 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.
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. DPC2203 or EPC2203 Cable Modem with Embedded MTA DPC2203/EPC2203 Manufactured by: Scientific-Atlanta, Inc. 5030 Sugarloaf Parkway Lawrenceville, Georgia 30044 USA Telephone: 770-236-1077

Uses an attractive compact design that allows for vertical, horizontal, or wallmount placement Allows automatic software upgrades by your service provider Includes one or two optional internal Lithium-Ion cartridge-style batteries for convenient and long-lasting backup power

What's In the Carton?

When you receive your cable modem, you should check the equipment and accessories to verify that each item is in the carton and that each item is undamaged. The carton contains the following items:
One DPC2203 or EPC2203 VoIP Cable Modem

Optional battery model

One AC power adapter with power cord
One Ethernet cable (CAT5/RJ-45)

One USB cable

One CD-ROM containing the user's guide and the USB drivers
One or two Lithium Ion cartridge batteries (not provided with all models) If any of these items are missing or damaged, please contact your service provider for assistance.
Notes: You need a cable signal splitter and additional standard RF coaxial cables 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 wireless home gateway. Cables and other equipment needed for telephone service must be purchased separately. Contact your service provider to inquire about the equipment and cables you need for telephone service.

Front Panel Description

The front panel of your cable modem provides status LEDs that indicate how well and at what state your cable modem is operating. See Front Panel LED Status Indicator Functions (on page 53) for more information on front-panel LED status indicator functions.

Standard model

Battery backup model
POWER 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. DS (Downstream) Indicates the status of the connection for receiving data. Illuminates during normal operation US (Upstream) Indicates the status of the connection for sending data. Illuminates during normal operation ONLINE 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

LINK 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 TEL 1 Illuminates solid green when telephony service is enabled. Blinks when line 1 is in use TEL 2 Illuminates solid green when telephony service is enabled. Blinks when line 2 is in use BATTERY (optional models only) 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 or when the battery charge is depleted or the battery is defective
Notes: After the cable modem is successfully registered on the network, the POWER (LED 1), DS (LED 2), US (LED 3), and ONLINE (LED 4) LEDs illuminate continuously to indicate that the cable mode is active and fully operational LEDs may behave differently when the cable modem is running on battery power (without AC power-optional model only). Most LEDs are disabled if the unit is operating on battery power. In this mode, the POWER LED blinks to indicate that the unit is operating under battery power but AC power has failed

Back Panel Description

The following illustration shows the description and function of the back panel components on the DPC2203 and EPC2203.
Important! Do not connect your PC to both the Ethernet and USB ports at the same time. Your modem will not function properly if both the Ethernet and USB ports are connected to your PC at the same time. 1 POWER Connects the cable modem to the AC power supply that is provided with your cable modem
CAUTION: Avoid damage to your equipment. Only use the AC power adapter that is provided with your cable modem.
TEL 1/TEL 2 RJ-11 telephone ports connect to home telephone wiring to conventional telephones or fax machines ETHERNET RJ-45 Ethernet port connects to the 10/100baseT Ethernet port on your PC or your home network USB 12 Mbps USB 1.1 port connects to the USB port on your PC
REBOOT EMTA Pressing this switch reboots the EMTA. Pressing this switch for more than three seconds resets the device to factory default values and reboots the EMTA
CAUTION: The Reboot EMTA button is for maintenance purposes only. Do not use unless instructed to do so by your service provider. Doing so may cause you to lose any cable modem settings you have selected.
CABLE F-Connector connects to an active signal from your service provider
Where Is the Best Location for My Cable Modem?
The ideal location for your cable modem is where it has access to outlets and other devices. Think about the layout of your home or office, and consult with your service provider to select the best location for your cable modem. Read this user's guide thoroughly before you decide where to place your cable modem. Consider these recommendations: Position your PC and cable modem so that they are located near an AC power outlet. Position your PC and cable modem so that they are located near an existing cable input connection to eliminate the need for an additional cable outlet. There should be plenty of room to guide the cables away from the modem and the PC without straining or crimping them. Airflow around the cable modem should not be restricted. Choose a location that protects the cable modem from accidental disturbance or harm.

What Are the System Requirements for Internet Service?
To ensure that your cable modem operates efficiently for high-speed Internet service, verify that all of the Internet devices on your system meet or exceed the following minimum hardware and software requirements. Note: You will also need an active cable input line and an Internet connection.
Minimum System Requirements for a PC
A PC with a Pentium MMX 133 processor or greater 32 MB of RAM Web browsing software CD-ROM drive
Minimum System Requirements for Macintosh

MAC OS 7.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
System Requirements for a USB Connection
A PC with Microsoft Windows 98SE, ME, 2000, or XP operating system A master USB port installed in your PC or your Apple Macintosh computer
How Do I Set Up My High-Speed Internet Access Account?
Before you can use your cable modem, you need to have a high-speed Internet access account. If you do not have a high-speed Internet access account, you need to set up an account with your local service provider. Choose one of the two options in this section.
I Do Not Have a High-Speed Internet Access Account
If you do not have a high-speed Internet access account, your service provider will set up your account and become your Internet Service Provider (ISP). Internet access enables you to send and receive e-mail, access the World Wide Web, and receive other Internet services. You will need to give your 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 CM MAC. The following illustration shows a sample bar code label.
Write down these numbers in the space provided here. Serial Number _______________________ MAC Address ________________________
I Already Have an Existing High-Speed Internet Access Account
If you have an existing high-speed Internet access account, you must give your service provider the serial number and the MAC address of the cable modem. Refer to the serial number and MAC address information listed previously in this section. Note: You may not be able to continue to use your existing e-mail account with your cable modem. Contact your service provider for more information.
How Do I Connect My Devices to Use the Internet?

You can use your cable modem to access the Internet, and you can share that Internet connection with other Internet devices in your home or office. Sharing one connection among many devices is called networking.
Connecting and Installing Internet Devices
You must connect and install your cable modem to access the Internet. Professional installation may be available. Contact your local service provider for further assistance. To connect devices The following diagram illustrates one of the various networking options that are available to you.
Connecting the Modem for High-Speed Data Service
WARNING: To avoid personal injury or damage to your equipment, follow these steps in the exact order shown.
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. Do not connect your PC to both the Ethernet and USB ports at the same time. You can connect two separate PCs to the cable modem at the same time by connecting one PC to the Ethernet port and one PC to the USB port. Connect the active RF coaxial cable to the CABLE connector. Use an optional cable signal splitter to add a TV, a DHCT or set-top converter, or a VCR. Insert the AC power cord into the POWER connector on the back of the cable modem, and then plug the cord into an AC power source. Plug in and power on your networked devices including your PC. The cable modem will then begin an automatic search to locate and sign on to the broadband data network. This process may take up to 5 minutes. The modem will be ready for use when the ONLINE LED status indicator on the front panel stops blinking and illuminates continuously. The next step in setting up your cable modem is to configure your Internet devices for Internet access. Choose one of the following options: If you want to use Ethernet connections, you must configure the TCP/IP protocol. To configure the TCP/IP protocol, go to How Do I Configure TCP/IP Protocol? (on page 21). If you want to use USB connections, you must install the USB drivers. To install the USB Drivers for USB, go to How Do I Install USB Drivers? (on page 24).
How Do I Configure TCP/IP Protocol?
To configure TCP/IP protocol, you need to have an Ethernet Network Interface Card (NIC) with TCP/IP communications protocol installed on your system. TCP/IP is a communications protocol used to access the Internet. This section contains instructions for configuring TCP/IP on your Internet devices to operate with the cable modem in Microsoft Windows or Macintosh environments.

What Are the Requirements for USB Network Devices?
How Many USB Devices Can I Connect?
You can connect one PC or other USB device to the USB port on the EMTA.
What Are the Wiring Requirements?
Scientific Atlanta recommends that you use the USB 1.1 cable provided with your modem.
Do I Need to Install USB Drivers on My Computer?
To use USB network devices, you must have the correct USB drivers installed on your PC. Refer to How Do I Install USB Drivers? (on page 24), for information on installing USB drivers.
How Do I Select and Place USB Network Devices?
You can use a large variety of USB network devices with your cable modem. These include desktop computers, laptop computers, devices with USB ports, and USB adapters. Contact your service provider or consult the documentation for your USB network devices for more information on selecting USB network devices.
Where Is the Best Location for My USB Network Devices?
You should work with your service provider to choose the best location for your USB network devices. Consider these recommendations: Location of two-way coaxial cable outlets Distance of the USB network devices from the cable modem Location of computers and other equipment from AC power outlets Ease of running USB cable to the USB network devices Now that you have selected a location for your USB network devices, the next step is to place and connect your USB network devices. Go to How Do I Connect USB Network Devices? (on page 32).
How Do I Connect USB Network Devices?

Connecting USB Devices

You must connect your USB devices for use with your cable modem. Professional installation may be available. Contact your local service provider for further assistance. The following diagram illustrates one of the various USB network connection options that are available to you.
WARNING: Hazardous electrical voltages can be present on any connected wiring. USB wiring and connections must be properly insulated to prevent electrical shock. Disconnect power from the cable modem before attempting to connect to any device. To avoid personal injury, follow these steps in the exact order shown. CAUTION: To prevent possible damage to the equipment, disconnect any other service before connecting your cable modem to other devices.
Read the warnings and caution on this page. Then, follow the subsequent installation procedures to ensure proper cable modem operation when connecting USB network devices.
Note: Verify that you have installed the USB drivers on your PC before continuing with these instructions. See How Do I Install USB Drivers? (on page 24), for more information on installing the USB drivers. 3 Select locations for USB network devices. For more information, see How Do I Select and Place USB Network Devices? (on page 31). Connect the USB port on the cable modem to your computer. Connect one or more USB network device to the cable modem. Note: If you want to connect more than one USB network device to the cable modem or to your computer, you will need to purchase and install a USB hub. 4 Connect the active RF coaxial cable to the CABLE connector on the back of the cable modem. Use an optional cable signal splitter to add a TV, a DHCT or settop converter, or a VCR. After all connections are complete, insert the AC power cord into the POWER connector on the back of the cable modem, and then plug the cord into an AC power source. The cable modem begins an automatic search to locate and sign on to the network. This process may take up to 5 minutes. The cable modem is ready for use when the ONLINE LED status indicator on the front panel stops blinking and illuminates continuously. Verify that all USB devices are working properly. Note: You will not be able to check the front panel LED status indicator on the cable modem until after at least one USB network device is connected and operating on the network.

How Do I Use My Modem for Telephone Service?
Contacting Your Local Service Provider
You need to set up a telephone account with your local service provider to use your cable modem for telephone service. When you contact your service provider, verify the following conditions: Does the service to your home support two-way, DOCSIS-compatible cable modem access? If your service provider does not provide two-way service, this modem will not be able to communicate with your service provider's Internet access and telephone services. Can you transfer your existing telephone numbers from another telephony service provider to your current 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 telephony service provider. You will need to give your 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 CM MAC. The following illustration shows a sample bar code label.
Where Do I Place My Modem for Telephone Service?
Where Is the Best Location for My Modem?
When choosing a location for your modem, consider the following 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 How Do I Install the Modem for Telephone Service? (on page 39), 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 user's guide thoroughly before installing the cable modem.

What Are the Requirements for Telephone Service?
This section provides hardware and software requirements for using 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 more 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 your telephones should be set to use DTMF dialing. Pulse dialing is typically not enabled by your local provider.
Telephone Wiring Requirements
The cable modem supports 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.
How Do I Install the Modem for Telephone Service?
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 Modem to Provide Telephone Service
Heed the following warnings, and then follow the subsequent installation procedures in this section to ensure proper cable modem installation and configuration for providing telephone service.

Tips for Improved Performance

Check and Correct

If your cable modem does not perform as expected, the following tips may help. If you need further assistance, contact your service provider. Verify that the plug to your cable modem AC power is properly inserted into an electrical outlet. Verify that your cable modem AC power cord 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 ONLINE LED status indicators on the front panel of your cable modem are illuminated. Verify that your cable service is active and that it supports two-way service. Verify that all cables are properly connected, and that you are using the correct cables. Verify that your TCP/IP is properly installed and configured if you are using the Ethernet connection. Verify that you have followed the procedures in How Do I Install USB Drivers? (on page 24), if you are using the USB connection. Verify that you have called your 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. For best performance over an Ethernet connection, your PC should be equipped with a 10/100BaseT network interface card.
How Do I Maintain the Battery (Optional Model Only)
Your modem includes up to two rechargeable Lithium-Ion batteries to provide stand-by operation in the event of an AC power failure. You can replace one or both of the batteries without the use of any tools.
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 the battery outside the system. Do not crush, puncture, dispose of in a fire, short external contacts, or expose to water or other liquids. Dispose of the battery in accordance with local regulations and instructions from your service provider.

Charging the Batteries

The batteries begin to charge automatically as soon as you attach the modem to the AC electrical outlet. When you first plug in the modem, the POWER LED status indicator illuminates. Important! It may take as long as 24 hours for each battery to charge fully.
Using the Modem Without a Battery
If you want, you can use the modem without a battery. If you need to remove the batteries, follow the procedures found in Removing and Replacing the Batteries. Important! If you choose to operate your modem without a battery, you risk losing your telephone service during a power outage.

Replacing the Batteries

Under normal circumstances, the battery should last for several years. The BATTERY LED status indicator turns off to indicate that the battery should be replaced soon. Contact your service provider to obtain replacement batteries and for disposal instructions. Note: Follow the steps found in Location of Batteries (Single Battery Model) (on page 48) or Location of Batteries (Double Battery Model) (on page 49) to remove and replace one or both of the batteries.
Location of Batteries (Single Battery Model)
The following illustration shows the location of the batteries on the DPC2203/EPC2203 or DPC2100 with one battery.
Removing and Replacing the Battery You can remove and replace the battery without disconnecting the AC power source. 3 Carefully turn the modem over. Gently release the latch to open the battery cover and gain access to the battery compartment. Grasp the plastic strip on the front of the battery and gently slide the battery forward to remove it from the battery compartment. Important! It can take as long as 24 hours for the battery to charge fully. Insert a new battery into the battery compartment. Close the battery compartment door. The battery lock will automatically reengage. Note: Dispose of the battery in accordance with local regulations and instructions from your service provider.
Location of Batteries (Double Battery Model)
The following illustration shows the location of the batteries on the DPC2203/EPC2203 with two batteries.

Subscriber Networks

WebSTAR EPC2203 Cable Modem with Embedded MTA
The WebSTAR EPC2203 Cable Modem (EPC2203) is a high-speed cable modem with an embedded media terminal adapter (EMTA). The EPC2203 features two RJ-11 telephone ports for Voice over Internet Protocol (VOIP) service along with a 10/100BaseT Ethernet port and a USB 1.1 port for highspeed data connectivity. The EPC2203 is designed to meet Euro-PacketCable 1.0 and Euro-DOCSIS 2.0 specifications and is backward compatible with Euro-DOCSIS 1.1 and Euro-DOCSIS 1.0 networks. The EPC2203 uses advanced line interface technology to provide multi-country toll-quality telephone service using existing in-home wiring. The EPC2203 supports full 5 REN phone loading on each phone line (10 REN total). The EPC2203 provides two standard voice codecs: G711 and G728. Additional CODECs are available through software upgrades including high fidelity CODEC options for Toll Quality Plus service. Standard VoIP call signaling is compliant with Euro-PacketCables (MGCP/NCS) specifications. Software upgrades are also available to support Session Initiation Protocol (SIP) call signaling. WebWizard To facilitate setup and troubleshooting, the EPC2203 includes WebWizarda browser-based user interface. In addition, the seven LEDs on the front panel provide an informative and easy-to-understand display that indicates cable modem status and real-time data transmission activity. Battery Backup (Optional) The EPC2203 can be ordered with an optional housing that has provisions for an internal cartridge-style Li-Ion battery to provide backup power in the event of an AC power failure. The battery compartment is neatly concealed on the bottom of the unit. This user-friendly design allows easy battery cartridge replacement without the use of any tools.

Description

Features
Designed to meet Euro-PacketCable 1.0 and Euro-DOCSIS 2.0 specifications Cable modem with an Embedded MTA that provides two lines of voice services Toll quality, high compression, and high fidelity (exceeding Toll Quality) CODEC options Internet Protocol Security (IPSec) and AES-128 encryption options Attractive compact design Versatile orientation: stands vertically or lies flat on the desktop, or mounts easily on the wall WebWizard browser-based user interface for simple setup Bridged 10/100BaseT auto-sensing / auto-MDIX Ethernet port, and USB 1.1 data port Optional battery backup housing allows standby powering on loss of AC power 2200 mAh Li-Ion battery cartridge provides up to 8 hours of battery backup operation 1
The listed battery backup time (8 hours) is the nominal initial time that the battery pack can provide standby power after loss of AC power and after fully charging the battery. Due to variations in individual units, the actual initial standby time can vary +/- 10%. Other factors can also influence battery standby power times such as CPE data activity, variations in EURO-DOCSIS traffic, telephone port activity, battery aging, and temperature.

Ordering Information

Contact your Sales Representative for product availability in your area. Standard powering configurations (no battery backup capability)
2-Line VoIP Cable Modem with EMTA for International markets. Includes: Euro-PacketCable 1.0 / Euro-DOCSIS 2.0 Standard housing (no battery backup capability) 230 VAC / 50 Hz, 12 VDC / 1A In-line linear power supply with attached cord and CEE7/16 Euro plug power connector Ethernet and USB cables CD-ROM containing users guide and USB drivers 2-Line VoIP Cable Modem with EMTA for International markets. Includes: Euro-PacketCable 1.0 / Euro-DOCSIS 2.0 Standard housing (no battery backup capability) 100-240 VAC / 50-60 Hz, 12 VDC / 1A Class 2 In-line switching mode power supply 2 conductor, European, Euro plug CEE7/16 to C7 Ethernet and USB cables CD-ROM containing users guide and USB drivers 4013276

Part Number

4011095

Replacement Components

AC Power Supplies Linear, Class 2, 15 VDC 230 VAC / 50 Hz, 15 VDC / 1A In-line linear power supply with attached cord and CEE7/16 Euro plug power connector 230 VAC / 50 Hz, 15 VDC / 1A In-line linear power supply with attached cord and BS-1363 style 3-pin UK power connector Switching Mode, Class 2, 15 VDC 100-240 VAC / 50-60 Hz, 15 VDC / 1A Universal power supply Linear, Class 2, 12 VDC 230 VAC / 50 Hz, 12 VDC / 1A In-line linear power supply with attached cord and CEE7/16 Euro plug power connector 230 VAC / 50 Hz, 12 VDC / 1A In-line linear power supply with attached cord and BS-1363 style 3-pin power connector 220 VAC / 60 Hz, 12 VDC / 1A In-line linear power supply with attached cord and power connector for Korea 220 VAC / 50 Hz, 12 VDC / 1A In-line linear power supply with attached cord and power connector for Argentina 230VAC / 50HZ, 12 VDC / 1A Plug-in linear power supply for Australia 230 VAC / 50 Hz, 12 VDC / 1A Plug-in linear power supply with CEE7/16 Euro plug power connector Universal Switching Mode, Class 2, 12 VDC 100-240 VAC / 50-60 Hz, 12 VDC / 1A In-line universal switching mode power supply, Class II, C7 AC connector, 2 conductor (power cord not included, order power cord separately) Part Number

Power Cords Class 2 Power cord, 2 conductor, North America, NEMA 1-15 to C7, non-polarized Power cord, 2 conductor, Japan, NEMA 1-15 to C7, non-polarized Power cord, 2 conductor, European, Euro plug CEE7/16 to C7 Power cord, 2 conductor, United Kingdom, BS1363 to C7 Power cord, 2 conductor, Brazil Euro plug CEE7/16 to C7, INMETRO Power cord, 2 conductor, Korea Power cord, 2 conductor, Argentina Battery Cartridge 2200 mAh Li-Ion Battery Cartridge Cables Ethernet cable USB cable Users Guide and USB Drivers CD-ROM with users guide and USB drivers 4012938 Part Number 4008300 Part Number Part Number 4001911 Part Number
Scientific Atlanta is a registered trademark of Scientific-Atlanta, Inc. EPC2203 and WebSTAR are trademarks of Scientific-Atlanta, Inc. Cisco, Cisco Systems, and the Cisco Systems logo are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the U.S. and certain other countries. All other trademarks shown are trademarks of their respective owners. Specifications and product availability are subject to change without notice. 2006 Scientific-Atlanta, Inc. All rights reserved. Scientific-Atlanta, Inc. 1-800-722-2009 or 770-236-6900 www.scientificatlanta.com Part Number 7008322 Rev B April 2006