Internet On/Off
Message
Internet
Cable
Cable PC Link
Link
Activity
CABLE MODEM
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Table of Contents
Introduction ......................................................................................................................................... 2
Cable Modem Features .................................................................................................................................................. 2
What’s on the CD-ROM .................................................................................................................................................. 2
Accessing the Diagnostics Display through the CD-ROM ............................................................................................. 2
Computer Requirements ................................................................................................................................................ 3
Cable Modem Overview ..................................................................................................................... 4
What the Modem Does .................................................................................................................................................. 4
What the Modem Needs to Do Its Job .......................................................................................................................... 5
Before You Begin ................................................................................................................................. 5
Contact Your Local Cable Company .............................................................................................................................. 5
Connecting the Cable Modem ............................................................................................................ 7
Connecting the Cable Modem to a Single Computer .................................................................................................. 7
USB Connection .............................................................................................................................................................. 9
Using Windows 98 SE for USB Connection ................................................................................................................. 10
Using Windows 2000 for USB Connection .................................................................................................................. 14
Using Windows Me for USB Connection ..................................................................................................................... 18
Using Windows XP for USB Connection ...................................................................................................................... 20
Ethernet Connection to One Computer ...................................................................................................................... 22
Connecting More Than Two Computers to the Cable Modem .................................................................................. 23
Activating the Cable Modem............................................................................................................ 24
Initialization Mode ....................................................................................................................................................... 24
Using the Cable Modem .............................................................................................................................................. 26
Indicators – Operational Mode .................................................................................................................................... 25
Buttons .......................................................................................................................................................................... 25
Reset Switch .................................................................................................................................................................. 26
Other Status Indicators ................................................................................................................................................. 26
Frequently Asked Questions ............................................................................................................ 27
General Troubleshooting .................................................................................................................. 29
USB Troubleshooting......................................................................................................................... 31
FCC Declaration of Conformity and Industry Canada Information ............................................... 42
Quick Reference ................................................................................................................................. 43
Service Information ........................................................................................................................... 44
Glossary.............................................................................................................................................. 45
1
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Introduction
Cable Modem Features
•
DOCSIS models are capable of receiving data at rates of up to 30Mbps‡ (30 Megabits per
second).
•
Euro-DOCSIS models are capable of receiving data at rates of up to 38Mbps‡ (38 Megabits
per second).
•
•
Able to send and receive data over the cable line
Able to connect 2 computers through Ethernet and USB at the same time (if allowed by the
cable operator)
•
•
•
•
•
Plug-and-play operation for easy setup and installation
ON/OFF button to connect and disconnect access to the Internet
Message waiting notification capability (if allowed by the cable operator)
Diagnostics via LED or HTTP server (if allowed by the cable operator)
Able to receive automatic software updates, if initiated by your cable company
‡ The following may affect the speed of your cable modem: your computer equipment and
configuration (processor speed, amount of RAM, available disk space); the number of
programs you are running at the same time; the capacity of your ISP; network traffic levels;
the number of Ethernet or USB devices in use on your computer. Your cable company may
or may not fully support the speed capabilities of this modem.
What’s on the CD-ROM
Insert the cable modem CD-ROM into your CD-ROM drive to view troubleshooting tips, the
internal diagnostics, and other valuable information.
Note: You will need to use the CD-ROM to install the USB driver if you are connecting via the
USB port.
CD-ROM Contents:
•
•
•
Electronic file of the instruction book in additional languages
USB drivers
Usage and troubleshooting tips
Accessing the Diagnostics Display through the CD-ROM
A button on the CD-ROM menu called “Look at Diagnostics” (found under the “About My Cable
Modem” menu) launches your browser and displays status and diagnostic information stored
within the modem in HTML format (if allowed by the cable operator).
2
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Introduction
Please note that before this page can be displayed, your PC must receive an IP address
assignment from the Cable company’s server, over the cable network. You may want to
“bookmark” the IP address in your browser after the diagnostics page is displayed.
Computer Requirements
Personal computer with the following minimum system requirements (note that the minimum
requirements may vary by cable company):
IBM PC COMPATIBLE
Pentium preferred
MACINTOSH**
CPU
PowerPC or higher
System RAM
Operating System
16MB (32MB preferred)
24MB (32MB preferred)
Mac OS** 7.6.1 or higher
Windows* 98SE/2000/Me/XP,
Linux
Available Disk Space 125MB
50MB
Sound Card
Video
Preferred
N/A†
VGA or better (SVGA preferred)
Required for USB
VGA or better (SVGA built-in preferred)
Required
CD-ROM Drive
Ethernet
10BaseT or 100BaseT
10BaseT or 100BaseT
An Ethernet card makes it possible for your computer to pass data to
and from the internet. You must have an Ethernet card and software
drivers installed in your computer. You will also need a standard
Ethernet cable to connect the Ethernet card to your cable modem.
USB Port
USB (Windows 98SE/2000/Me/XP only) N/A†
The Universal Serial Bus is a high speed bus that enables your
computer to communicate simultaneously with a variety of
peripherals. However, if you have other peripherals that send and
receive a lot of information, such as speakers, printers or scanners,
we recommend using an Ethernet card to support this modem.
†Mac Users: Mac OS or any other OS other than Windows 98SE, Me, 2000, or XP are not currently
supported for USB installation. Please use the Ethernet connection.
*Windows is a trademark of the Microsoft Corporation.
**Macintosh and the Mac OS are trademarks of Apple Computer, Inc.
3
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Introduction
Placing the Rubber Feet on the Cable Modem
A set of rubber pads have been packaged with your modem. These pads (or "feet") can be
attached to keep the modem from sliding around on your desktop.
Internet On/Off
Message
Internet
Cable
Cable PC Link
Link
Activity
Attach the pads to the four posts on the bottom of the modem.
Cable Modem Overview
Internet On/Off
Message Cable
Activity
Cable PC Link Internet
Link
Cable Modem
Cable Company
Computer
Internet
This illustration shows a cable company that offers DOCSIS-compliant or
Euro-DOCSIS compliant Internet services
What the Modem Does
The Thomson digital cable modem serves as a two-way high-speed bridge between your personal
computer and a cable Internet Service Provider (ISP). It converts information that originates from
the Internet or your computer into electronic messages that can be transported over the same
wires your cable company uses to transport video signals.
4
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Cable Modem Overview
What the Modem Needs to Do Its Job
•
The Right Cable Company: Make sure your local cable company provides data services
that use cable industry-standard DOCSIS or Euro-DOCSIS technology compatible with your
cable modem.
•
The Internet Service Provider (ISP): Your cable company provides you access to an
Internet Service Provider (ISP). The ISP is your gateway to the Internet. It provides you with
a pipeline to access Internet content on the World Wide Web (WWW).
Check with your cable company to make sure you have everything you need to begin; they’ll
know if you need to install special software or re-configure your computer to make your
cable internet service work for you.
Before You Begin
Contact Your Local Cable Company
You will need to contact your cable company to establish an internet account before you can use
your modem. You should have the following information (which you will find on the sticker on
the modem) ready:
•
•
•
The serial number
The model number of the modem
The Media Access Control (MAC) address
Record your information here:
Serial Number:
Model Number:
MAC Address:
5
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Before You Begin
Please verify the following with the cable company:
•
The cable service to your home supports DOCSIS-compliant or EuroDOCSIS-compliant two-
way modem access.
•
•
Your Internet account has been set up.
You have a cable outlet near your PC and it is ready for cable modem service.
Note: It is important to supply power to the modem at all times. Keeping your modem
plugged in will keep it connected to the Internet. This means that it will always be ready
when you are. To disconnect just your computer from the Internet, use the ON/OFF button.
Important Information
Your cable company should always be consulted before installing a new cable outlet. Do not
attempt any rewiring without contacting your cable company first.
Note: Graphics used within this publication are for representation only.
6
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Connecting the Cable Modem
Connecting the Cable Modem to a Single Computer
This section of the manual explains how to connect your cable modem to the USB or Ethernet
port on your computer and install the necessary software. Please refer to figure 1 to help you
connect your cable modem for the best possible connection.
Attaching the Cable TV wire to the Cable Modem
1. Locate the Cable TV wire. You may find it one of three ways:
A. Connected directly to a TV, a Cable TV converter box, or VCR. The line will be
connected to the jack which should be labeled either IN, CABLE IN, CATV, CATV IN,
etc.
B. Connected to a wall-mounted cable outlet.
C. Coming out from under a baseboard heater or other location. See Figure 1 for the
wiring example.
TV converter
TV
TV converter
TV
Cable drop
Modem
PC
Notes: For optimum
TV converter
performance, be sure to connect
your cable modem to the first
point the cable enters your home.
TV
The splitter must be rated for at
least 1GHz.
New cable wire
= Splitters
Fig. 1: Basic Home Wiring
7
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Connecting the Cable Modem
Important Connection Information
The cable modem supports both Ethernet and USB connections simultaneously (if allowed by
your cable provider).
Note: Only use the power supply provided
with this unit. Using other power supplies may
damage the unit.
3V800mA ETHERNET
USB
RESET
CABLE
Coaxial Cable
AC Power Supply
Fig. 2: USB Connection
8
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Connecting the Cable Modem
Below are important points to remember before you connect the cable modem:
•
You should have a Windows® 98 SE (Second Edition), Windows Me (Millennium Edition),
Windows 2000, or Windows XP operating system to use the Universal Serial Bus (USB)
connection.
•
For Ethernet connections, go to page 22.
USB Connection
The cable modem CD included with your modem contains the drivers and other information you
need to install your cable modem. Follow instructions 1 through 5 to connect the cable modem to
the USB port on your computer. Instructions must be followed in the order they appear.
1. Connect one end of the coaxial cable to the cable connection in the wall. Attach the other end
of the coaxial cable to the connector on the cable modem labeled “CABLE” (Fig. 2) on page 8.
2. Insert the plug from the AC power supply into the power AC jack on cable modem and the
two-prong plug into the AC outlet.
3. Insert the supplied cable modem CD-ROM. Wait momentarily for the cable modem CD
window display.
4. Close all open applications and dialog boxes, including the cable modem CD window.
Note: Open applications may interfere with your cable modem installation.
5. Connect one end of the USB cable to the USB port located on the back of your computer.
Connect the other end of the USB cable to the USB port on the cable modem’s back panel.
Note: Use only the power supply that accompanied this unit. Using other power supplies may
damage the unit.
Next, you need to install the USB driver for your operating system:
•
•
•
•
If you have Windows 98 SE, go to step 6 on page 10.
If you have Windows 2000, go to step 6 on page 14.
If you have Windows Me, go to step 6 on page 18.
If you have Windows XP, go to step 6 on page 20.
9
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Connecting the Cable Modem
Using Windows 98 SE for USB Connection
Follow steps 6 through 14 if you have a Windows 98 SE operating system:
6. When the “Add New Hardware Wizard” appears, click “Next” to initiate the search for drivers
for your USB device. (Fig. 3)
Note: If the “Add New Hardware Wizard” did not automatically appear, Windows 98 SE does
not recognize the cable modem’s presence because your BIOS (Basic Input/Output System)
settings may not permit USB and/or Plug-and-Play devices. Please contact your computer’s
customer service department.
7. Choose “Search for the best driver (recommended)” option, and click “Next.”
(Fig. 4).
8. Choose ONLY the “CD-ROM drive” option and click “Next” (Fig. 5).
9. Choose “The updated driver (recommended)” option, and click “Next” (Fig. 6).
Fig. 3
Fig. 4
Fig. 5
Fig. 6
10
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Connecting the Cable Modem
10. The search should find the driver for the “RCA or Thomson USB Cable Modem” (Fig. 7). To
confirm that this is the case, click “Next” to continue and proceed to step 12. Otherwise, see
step 11.
Important: Do NOT continue if the search finds “USB Composite Device” driver. Proceed to
step 11.
11. Follow these instructions only if the driver found was NOT the “RCA or Thomson USB Cable
Modem.”
A. Click “Back” to return to the previous window.
B. Ensure that you have selected the “CD-ROM” option.
C. In addition to the CD-ROM selection, choose “Specify a location” (Fig. 8 ).
D. In the location box, type in your CD-ROM drive. For example, if your CD-ROM is
located on the E: drive, type “E:\.”
E. Click “Next” to continue.
The search should find the driver for the “RCA or Thomson USB Cable Modem.”
F. Confirm that this is the driver selected, and click “Next” to continue.
Fig. 7
Fig. 8
(continued on next page)
11
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Connecting the Cable Modem
12. Windows should now prompt you to install the “RCA or Thomson USB Cable Modem” driver.
Click “Next” to install the driver.
At this point, your PC needs to copy Windows 98 SE specific files. If these files are not
located on your hard drive, you may need to insert your Windows 98 SE installation media
(i.e., Windows disks or Windows CD-ROM), but first remove the cable modem CD-ROM.
13. After the Windows specific files are copied, you may be asked for another USB driver file
named “NETRCACM.SYS”, located on the cable modem CD-ROM. Remove the Windows 98
SE CD-ROM (if necessary), and reinsert the cable modem
CD-ROM that accompanied your cable modem.
14. Windows now informs you that the installation is complete. Click on “Finish” to finalize the
process (Fig. 9). When the “System Settings Change” window appears, click “Yes” to restart
your computer.
Fig. 9
12
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Connecting the Cable Modem
15. The cable modem installation is now complete. To validate a proper installation, perform the
following instructions:
A. Click on the “Start” icon in the lower left-hand corner of your screen.
B. Select “Settings,” followed by “Control Panel.” The “Control Panel” window appears.
C. Double-click on the “System” icon, and select the “Device Manager” tab.
D. Scroll down the list until you come to “Network Adapters.” Double-click on “Network
Adapters.”
If the “RCA or Thomson USB Cable Modem” does not exist, the cable modem was NOT
installed correctly, go to Solution 2 on page 35.
13
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Connecting the Cable Modem
Using Windows 2000 for USB Connection
Follow steps 6 through 14 if you have a Windows 2000 operating system:
6. When the “Found New Hardware Wizard” appears, click “Next” to initiate the search for
drivers for your USB device (Fig. 10).
Note: If Windows 2000 does not recognize the cable modem’s presence, your BIOS settings
may not permit USB and/or Plug-and-Play devices. Please contact your computer’s customer
service department.
7. Choose the “Search for a suitable driver for my device (recommended)” option, and click
“Next” (Fig. 11).
8. Choose ONLY the “CD-ROM” option and click “Next” (Fig. 12).
Fig. 11
Fig. 10
Fig. 12
14
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Connecting the Cable Modem
9. The search should find the driver for the “RCA or Thomson DCM xxx Cable Modem”
(Fig. 13). To confirm that this is the case, click “Next” to continue and proceed to step 11.
Otherwise, see step 10.
Important: Do NOT continue if the search finds “USB Composite Device” driver. Proceed to
step 10.
10. Follow these instructions ONLY if the driver found was NOT the “RCA or Thomson DCM xxx
Cable Modem.”
A. Click “Back” to return to the previous window.
B. Ensure that you have selected the “CD-ROM” option.
C. In addition to the CD-ROM option, choose “Specify a location.” Click on “Next” to
continue (Fig. 14).
D. In the location box, type in your CD-ROM drive. For example, if your
CD-ROM is located on the E: drive, type “E:\.” Click on “Ok” to continue.
E. Click “Next” to continue.
The search should find either “RCA or Thomson USB Cable Modem” or “RCA or
Thomson DCM xxx Cable Modem.”
Fig. 14
Fig. 13
(continued on next page)
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Connecting the Cable Modem
11. Windows should now prompt you to install either the “RCA or Thomson USB Cable Modem”
or “RCA or Thomson DCM xxx Cable Modem.” Click “Next” to install the driver.
At this point your PC needs to copy Windows 2000 specific files. If these files are not located
on your hard drive, you may need to insert your Windows 2000 installation media (i.e.,
Windows 2000 CD-ROM), but first remove the cable modem CD-ROM.
12. After the Windows specific files are copied, you may be asked for another USB driver file
named “NETRCACM.SYS,” located on the cable modem CD-ROM. Remove the Windows
2000 CD-ROM (if necessary), and reinsert the cable modem
CD-ROM that accompanied your cable modem.
13. Click on “Finish” to complete the process (Fig. 15).
Fig. 15
16
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Connecting the Cable Modem
14. The cable modem installation is now complete. To validate a proper installation, perform
the following instructions:
A. Click on the “Start” icon in the lower left-hand corner of your screen.
B. Select “Settings,” followed by “Control Panel.” The “Control Panel” window appears.
C. Double-click on the “System” icon, select the “Hardware” tab, and choose “Device
Manager.”
D. Scroll down the list until you come to “Network Adapters.” Double-click on “Network
Adapters.”
The “RCA or Thomson USB Cable Modem” should exist. If the “RCA or Thomson USB Cable
Modem” does not exist, the cable modem was NOT installed correctly. Go to Solution 2 on
page 35.
17
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Connecting the Cable Modem
Using Windows Me for USB Connection
Follow steps 6 through 9 if you have a Windows Me operating system:
6. Windows Me will briefly display the “Found New Hardware Wizard,” and automatically
proceed to the “Add New Hardware Wizard” (Fig. 16).
Choose the “Automatic search for a better driver (Recommended)” option, and click “Next.”
Note: If Windows Me does not recognize the cable modem’s presence, i.e., the “Add New
Hardware Wizard” did not automatically appear, your BIOS settings may not permit USB and/
or Plug-and-Play devices. Please contact your computer’s customer service department.
7. The automatic search should find and install the driver for the “RCA or Thomson USB Cable
Modem” (Fig. 17). Click on “Finish” to complete the process.
8. When the “System Settings Change” window appears, click “Yes” to restart your computer
(Fig. 18).
Fig. 16
Fig. 18
Fig. 17
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Connecting the Cable Modem
9. The Thomson cable modem installation is now complete. To validate a proper installation,
perform the following instructions:
•
•
•
•
Click on the “Start” icon in the lower left-hand corner of your screen.
Select “Settings,” followed by “Control Panel.” The “Control Panel” window will appear.
Double-click on the “System” icon, and select the “Device Manager.”
Scroll down the list until you come to “Network Adapters.” Double-click on “Network
Adapters.”
•
The “RCA or Thomson USB Cable Modem” should exist. If “RCA or Thomson USB Cable
Modem” does not exist, the cable modem was NOT installed correctly. Go to Solution 2 on
page 35.
19
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Connecting the Cable Modem
Using Windows XP for USB Connection
Follow steps 6 through 9 if you have a Windows XP operating system:
6. Windows XP will briefly display the “Welcome to the Found New Hardware Wizard,” (Fig. 19)
and ask you to insert the installation CD-ROM that came with the unit.
Choose the “Install the software automatically (Recommended)” option, and click “Next.”
Note: If Windows XP does not recognize the cable modem’s presence, i.e., the “Welcome to
the New Hardware Wizard” did not automatically appear, your BIOS settings may not permit
USB and/or Plug-and-Play devices. Please contact your computer’s customer service
department.
7. Your computer will install the drivers for the “RCA or Thomson USB Cable Modem” (Fig. 20).
Click on “Next” to complete the process.
Fig. 20
Fig. 19
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Connecting the Cable Modem
8. When the “Completing the Found New Hardware Wizard” window appears, click “Finish” to
complete the process (Fig. 21).
9. The Thomson cable modem installation is now complete. To validate a proper installation,
perform the following instructions:
•
•
•
•
Click on the “Start” icon in the lower left-hand corner of your screen.
Select “Settings,” followed by “Control Panel.” The “Control Panel” window will appear.
Double-click on the “System” icon, and select the “Device Manager.”
Scroll down the list until you come to “Network Adapters.” Double-click on “Network
Adapters.”
•
The “RCA or Thomson USB Cable Modem” should exist. If “RCA or Thomson USB Cable
Modem” does not exist, the cable modem was NOT installed correctly. Go to Solution 2 on
page 35.
Fig. 21
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Connecting the Cable Modem
Ethernet Connection to One Computer
Make the connections to the modem in the following sequence (Fig. 22):
1. Connect one end of the coaxial cable to the cable connection in the wall, and the other end to
the connector on the modem labeled “CABLE.”
2. Insert the plug from the AC power supply into the power AC jack on the cable modem and the
two-prong plug into the AC outlet.
Note: Use only the power supply that accompanied this unit. Using other adapters may damage
the unit.
3. Connect one end of the Ethernet cable (straight-wired, see below) to the Ethernet port on the
back of your computer, and the other end to the ETHERNET port on the cable modem’s back
panel.
Make sure that the Ethernet cable is straight-wired (not “null” or crossover-wired). However,
you will need a crossover-type cable if you are connecting the modem to a hub, or a hub
within a port switch that provides the same function.
3
USB
RESET
3800mA ETHERNET
CABLE
1
CABLE
Jack
AC Power
Supply
2
Coaxial Cable
Fig. 22: Ethernet Connection
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Connecting the Cable Modem
Connecting More Than Two Computers to the Cable Modem
If you need to connect more than two computers or if you need to connect two computers but
USB is not available, you’ll need the following additional equipment (if supported by your cable
operator):
•
Crossover-wired, or “null,” category 5 Ethernet cable for the cable modem to be connected
to the hub
•
•
10BaseT or 100BaseT Hub or Switch
Straight through, or standard, category 5 Ethernet cable (one for each computer to be
connected)
If you have a hub with an uplink port*, a straight through cable can be used in combination
with that port in lieu of the crossover cable.
3VDC 800mA ETHERNET
USB
RESET
CABLE
“Null” cable (not supplied)
Ethernet Hub
Standard Ethernet cables (one supplied)
Fig. 23: Ethernet Hub Connection
*An uplink port has a small switch on it to change the polarity of the connection. It can accept
either a crossover or a straight cable, depending on the setting.
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Activating the Cable Modem
Initialization Mode
After you install the cable modem and turn it on for the first time (and each time the modem is
reconnected to the power), it goes through five steps before it can be used. Each of these steps is
represented by a different pattern of flashing lights on the front of the modem.
Note: All indicators flash once prior to the initialization sequence.
Internet On/Off
Internet On/Off
Message Cable
Activity
Cable PC Link Internet
Link
Message Cable
Activity
Cable PC Link Internet
Link
Internet On/Off
Internet On/Off
x
x
x
Message
Internet
Cable
Cable PC Link
Link
Message
Internet
Cable
Cable PC Link
Link
Activity
Activity
2. Ranging – The modem is now tuned to a
downstream cable modem channel and
can now receive data. Now it searches for
an upstream channel so that it can send
data.
1. Tuning – The cable modem is functional
and searching for a downstream cable
modem service channel on your cable
system.
Internet On/Off
Internet On/Off
Message Cable
Activity
Cable PC Link Internet
Link
Message Cable
Activity
Cable PC Link Internet
Link
Internet On/Off
Internet On/Off
x
x
x
x
x x
x
Message
Internet
Cable
Cable PC Link
Link
Message
Internet
Cable
Cable PC Link
Link
Activity
Activity
3. Connecting – The cable modem is now
commun-icating start-up data both down-
stream and upstream.
4. Configuring – The cable modem received
its IP address and is downloading its
configuration file from the Internet
Service Provider (ISP).
The cable company is establishing IP
connectivity with your modem.
5. Registering – The cable modem
configuration is complete. It is
Internet On/Off
Message Cable
Activity
Cable PC Link Internet
Link
registering its “as-configured” settings
with your Cable Operator. Once
complete, the POWER (INTERNET)*, PC
LINK, and CABLE (CABLE ACTIVITY)*
indicators stop flashing and remain on.
Internet On/Off
x
x
x x
x
Message
Internet
Cable
Cable PC Link
Link
Activity
* Actual button or LED names may vary per model.
Legend
Off
On
Flashing
X
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Additional Information
Buttons
INTERNET ON/OFF* – Turns the Internet connection ON and OFF for additional security. In
OFF mode, the CABLE ACTIVITY LED is also disabled.
Important: Do not press this button when transmitting data over the Internet. The
information will be lost and your Internet connection disabled.
Indicators – Operational Mode
Internet On/Off
Message
Internet
Cable
Cable PC Link
Link
Activity
INTERNET* – Indicates whether the Internet Connection is active.
PC LINK – Indicates whether the connection between the computer and
the modem is active (ready to transmit/receive) or actually transmitting/
receiving. The light is off when no carrier is present (or the modem is in
standby mode), on when the carrier is present but there’s no transmit/
receive activity, and flashing when there is transmit/receive activity.
CABLE LINK* – Indicates the status of your cable connection. The light
is off when no cable connection is detected and fully lit when the modem
is registered with the network and data can be sent.
CABLE ACTIVITY* – Indicates the existence of data traffic in the cable
lines. The light is off when no data traffic is present and flashing when
data activity exists.
MESSAGE* – This light flashes when you have mail or message (if
available through service provider).
Note: If all of the lights are flashing sequentially, it means the cable modem is automatically
updating its system software. Please wait for the lights to stop flashing. You cannot use your
modem during this time. Do not remove the power supply or reset the cable modem during
this process.
* Actual button or LED names may vary per model.
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Using the Cable Modem
Reset switch
Reset Switch
The reset switch can be found behind a “toothpick
hole” on the back panel. It performs two
functions:
3VDC 800mA ETHERNET
USB
RESET
CABLE
•
•
Basic Reset – Press and release the switch to make it perform the same function as
disconnecting the power from the modem. It will start up again in Initialization Mode, see
page 24.
Factory Default Reset – Unplug the modem from the AC power. Press and hold the reset
switch while plugging the modem into AC power. Continue holding the switch. Release the
switch when all lights come on (about 6 seconds). This will return the modem to a factory
“out of box” condition. This should only be done if the cable modem has been taken out
of service in one location and is being reconnected to a different service, or if
instructed to do so by your cable company.
Other Status Indicators
Three other status light patterns you may see are:
Internet On/Off
Internet On/Off
Message Cable
Activity
Cable PC Link Internet
Link
Message Cable
Activity
Cable PC Link Internet
Link
Internet On/Off
Internet On/Off
x
x
x
x x
x
Message
Internet
Message
Internet
Cable
Cable PC Link
Link
Cable
Cable PC Link
Link
Activity
Activity
De-Activated – Cable Service Operator has
deactivated the cable modem. The cable
light flashes slowly.
Software downloading or update in progress.
Lights flash sequentially from top to bottom.
Internet On/Off
Message Cable
Activity
Cable PC Link Internet
Link
Internet On/Off
Message
Internet
Cable
Cable PC Link
Link
Activity
Standby – The modem is in the Standby mode. There is no connection to the Internet. The
CABLE LINK light is on and the PC LINK light is on if a computer is connected.
* Actual button or LED names may vary per model.
Legend
Off
On
Flashing
X
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Frequently Asked Questions
Frequently Asked Questions
Q. What if I don’t subscribe to cable TV?
A. If cable TV is available in your area, data service may be made available with or without
cable TV service. Contact your local cable company for complete information on cable
services, including high-speed internet access.
Q. How do I get the system installed?
A. Professional installation from your cable provider is strongly recommended. They will ensure
proper cable connection to the modem and your computer. However, your retailer may have
offered a self installation kit, including the necessary software to communicate with your
cable ISP.
Q. Once my cable modem is connected, how do I get access to the Internet?
A. Your local cable company provides your internet service*, offering a wide range of services
including email, chat, and news and information services, and a connection to the World
Wide Web.
Q. Can I watch TV and surf the Internet at the same time?
A. Absolutely! And your phone line won’t be tied up while you’re online.
Q. Can I run more than one computer on the modem?
A. Yes – a single cable modem can support up to 32 computers using Ethernet connectivity.**
Q. What do you mean by “Broadband”?
A. Simply put, it means you’ll be getting information through a “bigger pipe,” with more
bandwidth, than a standard phone line can offer. A wider, “broader” band means more
information, more quickly.
* Monthly subscription fee applies.
** Additional equipment required. Contact your cable company and ISP for any restrictions or
additional fees.
(continued on next page)
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Frequently Asked Questions
Q. What is DOCSIS and what does it mean?
A. “Data Over Cable Service Interface Specifications” is the industry standard that most cable
companies are adopting as they upgrade their systems. Should you ever decide to move, the
Euro-DOCSIS cable modem will work with all upgraded cable systems that are
EuroDOCSIS-compliant or DOCSIS*-compliant.
Q. What is Euro-DOCSIS and what does it mean?
A. Euro-DOCSIS is the modified DOCSIS standard to accommodate European cable systems
which often use 8 MHz channel spacing cable networks.
*If the DOCSIS downstream frequencies match the EuroDOCSIS frequency range.
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FCC Information
FCC Declaration of Conformity and Industry Canada
Information
This device complies with Part 15 of the FCC Rules. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept
any interference received, including interference that may cause undesired operation.
Trade Name: RCA
Equipment Classification:
Model: DCM425
Computing Device Accessory
Responsible Party:
Thomson Inc.
10330 N. Meridian Street
Indianapolis, IN 46290
Telephone: 580 634-0151
This equipment 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 harmful interference in a residential installation. This equipment generates,
uses, and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, 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 and 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 this equipment into an outlet on a circuit different from that to which the receiver is
connected.
• Consult the dealer or an experienced radio/TV technician for help.
FCC regulations state that unauthorized changes or modifications to this equipment may void
the user’s authority to operate it.
This Class B digital apparatus meets all requiements of the Canadian Interference Causing
Equipment Regulations.
This Class B digital apparatus complies with Canadian ICES-003.
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du Canada.
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Quick Reference
Minimum System Requirements
IBM PC COMPATIBLE
MACINTOSH
PowerPC or higher
CPU
Pentium preferred
System RAM
Operating System
16MB (32MB preferred)
Windows 98SE/2000/Me/XP, Linux
24MB (32MB preferred)
Mac OS 7.6.1 or higher
50MB
Available Disk Space 125MB
Sound Card
Video
Preferred
N/A†
VGA or better (SVGA preferred)
Required for USB
VGA or better (SVGA built-in preferred)
Required
CD-ROM Drive
Ethernet
10BaseT or 100BaseT
10BaseT or 100BaseT
USB Port
USB (Windows 98SE/2000/Me/XP only) N/A†
The Universal Serial Bus is a high speed bus that enables your computer to
communicate simultaneously with a variety of peripherals. If you have other
peripherals that send and receive a lot of information, such as speakers, printers or
scanners, we recommend using an Ethernet card to support this modem.
Connecting the Cable Modem
1. Connect one end of the coaxial cable to the cable connection in the wall, and the other end
to the connector on the modem labeled CABLE.
2. a.
b.
Insert the plug from the AC power supply into the power AC jack on the cable modem.
Insert the power cord into the AC adapter, and then plug into an AC outlet.
3. For USB Connection: Connect one end of the USB cable to the USB port on the back of
your computer, and the other end to the USB port on the cable modem’s back panel. (See
page 9 for instructions on loading the USB driver.)
OR
For Ethernet Connection: Connect one end of the Ethernet cable (straight-wired, see
above) to the Ethernet port on the back of your computer, and the other end to the
ETHERNET jack on the modem’s back panel.
†Mac Users: Mac OS or any other OS other than Windows 98SE, Me, 2000, or XP are not
currently supported for USB installation. Please use the Ethernet connection.
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Quick Reference
Button/Light/LED Indicators
Internet On/Off
Message Cable
Activity
Cable
Link
PC Link
Internet
INTERNET ON/OFF* – Turns the Internet connection ON and OFF for additional security. In
OFF mode, the CABLE ACTIVITY LED is also disabled. Do not press this button when transmitting
data over the internet. The information will be lost and your connection disabled.
INTERNET* – Indicates whether the Internet Connection is active.
PC LINK – Indicates whether the connection between the computer and the modem is active
(ready to transmit/receive) or actually transmitting/receiving. The light is off when no carrier is
present (or the modem is in standby mode), on when the carrier is present but there’s no
transmit/receive activity, and flashing when there is transmit/receive activity.
CABLE-LINK* – Indicates the status of your cable connection. The light is off when no cable
connection is detected and fully lit when the modem is registered with the network and data can
be sent.
CABLE ACTIVITY* – Indicates the existence of data traffic in the cable lines. The light is off
when no data traffic is present and flashing when data activity exists.
MESSAGE* – This light flashes when you have mail or message (if available through service
provider).
Service Information
If you purchased or leased your cable modem directly from your cable company, then warranty
service for the cable modem may be provided through your cable provider or its authorized
representative. For information on 1) Order Service, 2) Obtaining Customer Support, or 3)
Additional Service Information, please contact your cable company. If you purchased your cable
modem from a retailer, see the enclosed warranty card.
* Actual button or LED names may vary per model.
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Glossary
10BaseT – Unshielded, twisted pair cable with an RJ-45 connector, used with Ethernet LAN (Local Area
Network). “10” indicates speed (10 Mbps), “Base” refers to baseband technology, and “T” means twisted
pair cable.
DHCP (Dynamic Host Control Protocol) – A protocol which allows a server to dynamically assign IP
addresses to workstations on the fly.
DOCSIS (Data Over Cable Service Interface Specifications) – A project with the objective of
developing a set of necessary specifications and operations support interface specifications for cable
modems and associated equipment.
Ethernet card – A plug-in circuit board installed in an expansion slot of a personal computer. The
Ethernet card (sometimes called a Network Interface Card or NIC) takes parallel data from the computer,
converts it to serial data, puts it into a packet format, and sends it over the 10BaseT or 100BaseT LAN
cable.
EuroDOCSIS – The modified DOCSIS standard to accommodate European cable systems which
often use 8 MHz channel spacing cable networks.
F Connector – A type of coaxial connector, labeled CABLE IN on the rear of the cable modem, that
connects the modem to the cable system.
HTTP (HyperText Transfer Protocol) – Invisible to the user, HTTP is used by servers and clients to
communicate and display information on a client browser.
Hub – A device used to connect multiple computers to the cable modem.
IP Address – A unique, 32-bit address assigned to every device in a network. An IP (Internet Protocol)
address has two parts: a network address and a host address. This modem receives a new IP address
from your cable operator via DHCP each time it goes through Initialization Mode.
MAC Address – The permanent “identity” for a device programmed into the Media Access Control layer
in the network architecture during the modem’s manufacture.
Network Driver – A file that is loaded on the computer to allow the computer to recognize the Ethernet
card or USB port.
TCP/IP (Transmission Control Protocol/Internet Protocol) – A networking protocol that provides
communication across interconnected networks, between computers with diverse hardware
architectures and various operating systems.
Universal Serial Bus (USB) – USB is a “plug-and-play” interface between a computer and add-on
devices, such as a cable modem.
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Thomson Inc.
10330 North Meridian Street
Indianapolis, IN USA 46290
© 2004 Thomson Inc.
Trademark(s) Registered
Printed in Taiwan
THOMSON
TOCOM 16500150
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