THOMSON THG540 User manual

User manual
THG540 - Voice Over IP Cable Modem
SATELLITE TELECOM
CABLE TERRESTRIAL

Important Information
i
CAUTION
Disconnect power before
servicing.
CAUTION
This device is intended for
indoor operation only.
Telephone jacks Line 1 and
Line 2 must not be
connected to outside
wiring.
CAUTION
To ensure reliable operation and to prevent
overheating, provide adequate ventilation for this
modem and keep it away from heat sources. Do not
locate near heat registers or other heat-producing
equipment. Provide for free air flow around the cable
modem and its power supply.
This symbol means that your inoperative electronic appliance must be collected separately
and not mixed with the household waste. The European Union has implemented a specific
collection and recycling system for which producers' are responsible.
This appliance has been designed and manufactured with high quality materials and
components that can be recycled and reused. Electrical and electronic appliances are liable to
contain parts that are necessary in order for the system to work properly but which can
become a health and environmental hazard if they are not handled or disposed of in the
proper way. Consequently, please do not throw out your inoperative appliance with the
household waste.
If you are the owner of the appliance, you must deposit it at the appropriate local collection
point or leave it with the vendor when buying a new appliance.
- If you are a professional user, please follow your supplier's instructions.
- If the appliance is rented to you or left in your care, please contact your service provider.
Help us protect the environment in which we live !
NORTH AMERICAN CABLE INSTALLER:
This reminder is provided to call your attention to Article 820-40 of the National Electrical Code
(Section 54 of the Canadian Electrical Code, Part 1) which provides guidelines for proper
grounding and, in particular, specifies that the cable ground shall be connected to the grounding
system of the building as close to the point of cable entry as practical.
Euro-DOCSIS compliant
This product was designed according to Euro-DOCSIS Specifications but can also receive signals
according to the DOCSIS specifications if the used frequencies are between 93-861 MHz.

Important Information
ii
Operating Information
Operating Temperature: 0˚- 40˚C (32˚- 104˚F)
Storage Temperature: -30˚to 65˚C
If you purchased this product at a retail outlet, please read the following:
Product Information
Keep your sales receipt to obtain warranty parts and service and for proof of purchase. Attach it
here and record the serial and model numbers in case you need them. The numbers are located
on the back of the product.
Model No. ____________________________Serial No ________________________________
Purchase Date: ________________________Dealer/Address/Phone: _________________________

Table of Contents
Illustrations contained in this document are for representation only.
iii
Chapter 1: Connections and Setup........................................................................................... 1
Introduction ............................................................................................................................ 1
Voice over IP Cable Modem Features ................................................................................. 1
What’s on the CD-ROM ...................................................................................................... 1
Accessing the Diagnostics Display through the CD-ROM .................................................... 1
Computer Requirements.................................................................................................... 2
Placing the Rubber Feet on the Cable Modem .................................................................... 2
Cable Modem Overview ........................................................................................................... 3
Front Panel........................................................................................................................ 3
Rear Panel ......................................................................................................................... 5
Wall Mounting ................................................................................................................... 6
Relationship among the Devices........................................................................................ 7
What the Modem Does ...................................................................................................... 7
What the Modem Needs to Do Its Job................................................................................. 7
Contact Your Local Cable Company ................................................................................... 8
Connecting the Cable Modem to a Single Computer............................................................... 10
Attaching the Cable TV Wire to the Cable Modem ............................................................ 10
Important Connection Information .................................................................................. 11
USB Connection to One Computer ................................................................................... 11
USB Connection - Without Using the Installation Wizard ................................................... 13
Using Windows 2000 for USB Connection ........................................................................ 13
Using Windows Me for USB Connection............................................................................ 16
Using Windows XP for USB Connection ............................................................................ 17
Ethernet Connection to One Computer ............................................................................ 21

Table of Contents
iv
Connecting More Than Two Computers to the Cable Modem........................................... 22
Telephone or Fax Connection.......................................................................................... 23
Activating the Cable Modem .................................................................................................. 24
Chapter 2: Additional Information ......................................................................................... 25
Frequently Asked Questions .................................................................................................. 25
General Troubleshooting ....................................................................................................... 26
Service Information................................................................................................................ 28
Glossary ................................................................................................................................29

Chapter 1: Connections and Setup
Illustrations contained in this document are for representation only.
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Chapter 1: Connections and Setup
Introduction
Voice over IP Cable Modem Features
zProvides two-line telephone service
zCapable of receiving data at rates of up to 38 Megabits per second
zAble to send and receive data over the cable line
zAble to connect multiple computers through Ethernet, USB at the same time (if
applicable and your service provider offers multiple computer connections)
zPlug-and-play operation for easy setup and installation
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 might need to use the CD-ROM to install the USB driver if you are connecting via the
USB port.
CD-ROM Contents:
zLinks to RCA and Thomson web sites
zElectronic file of the instruction book in additional languages
zUsage 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.
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.
DOCSIS and PacketCable are trademarks of Cable Television Laboratories, Inc.

Chapter 1: Connections and Setup
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Computer Requirements
For the best possible performance from your cable modem, your personal computer must meet
the following minimum system requirements (note that the minimum requirements may vary by
the cable company):
IBM PC COMPATIBLE MACINTOSH**
CPU Pentium preferred PowerPC or higher
System RAM 16MB (32MB preferred) 24MB (32MB preferred)
Operating System Windows* NT/2000/Me/XP,
Linux
Mac OS** 7.6.1 or higher
Available Disk Space 125MB 50MB
Sound Card Required for audio on CD-ROM N/A
Video VGA or better (SVGA preferred) VGA or better (SVGA built-in preferred)
CD-ROM Drive Required Required
10BaseT or 100BaseT 10BaseT or 100BaseTEthernet
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 (Windows 2000/ME/XP only)
USB Port
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.
*Windows is a trademark of Microsoft Corporation.
**Macintosh and the Mac OS are trademarks of Apple Computer, Inc.
Placing the Rubber Feet on the Cable Modem
A set of rubber pads has been packaged with your modem. These pads (or "feet") can be attached
to keep the modem from sliding around on your desktop.

Chapter 1: Connections and Setup
Illustrations contained in this document are for representation only.
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Cable Modem Overview
Front Panel
The following illustration shows the front panel of the EMTA machine:
The LEDs on the front panel are described in the table below (from left to right):
THG540 Tel 2 Tel 1 Message Cable
Activity Cable Link PC Link Internet Description
X X OFF OFF OFF OFF FLASH Tuning
(Searching downstream signal)
X X OFF OFF OFF FLASH FLASH Ranging - Awaiting Response
(DS carrier acquire, ranging in process but
RNG-RSP has not been detected)
X X OFF OFF OFF FLASH FLASH Any RNG-RSP detected
(Normalizing power level and timing offset)
X X OFF OFF FLASH FLASH FLASH Connecting
(Ranging complete, DHCP in progress)
X X OFF FLASH FLASH FLASH FLASH Configuring
(DHCP complete, configuration file download
in process)
X X FLASH FLASH FLASH FLASH FLASH Registering and Baseline Privacy Initializing
(configuration file download complete, initialize
BPI if BPI is ON, registration in process)
Start-up
Operation
X X Enter Normal Operation Mode Registration complete
X X X X X X
OFF
ON Internet ON-OFF switch off Internet ON-OFF switch on
X X X X X
OFF
FLASH
ON X NO Ethernet/USB carrier present
Ethernet/USB TX/RX traffic
Ethernet/USB carrier present, no traffic
X X X X
OFF
FLASH
ON X X
NO Cable Link
Cable BSS/OSS has set the CM into
de-activated state
CM is registered
X X X OFF
FLASH X X X
Internet ON-OFF switch off/No RF DS/US
network traffic
RF DS/US network traffic
Normal
Operation
X X OFF
FLASH X X X X
No message is delivered by the MSO
Email/Voice Mail is available for the user on
the server
(Implementation of the message waiting LED
will be via Proprietary MIB)
X X X X Wink X X
No service
Operation Three seconds ON followed by a flash OFF NACO =OFF
BPI unauthorized (when BPI is ON)

Chapter 1: Connections and Setup
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THG540 Tel 2 Tel 1 Message Cable
Activity Cable Link PC Link Internet Description
OFF FLASH MTA DHCP
FLASH OFF MTA SNMP/TFTP
MTA
initialization FLASH FLASH RSIP
ON ON Both Lines On-Hook
ON FLASH Tel1 Off-hook, Tel2 On-hook
FLASH ON Tel1 On-hook, Tel2 Off-hook
MTA
Operation
FLASH FLASH
<CM Normal Operation>
Both Lines Off-Hook
ON FLASH FLASH FLASH FLASH FLASH FLASH
SW
Download
Operation FLASH ON From Right to Left A software download and while updating the
FLASH memory

Chapter 1: Connections and Setup
Illustrations contained in this document are for representation only.
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Rear Panel
12VDC: 12V Power connector
Reboot EMTA: Reboot this device
Telephony (LINE1/LINE2): RJ-11 Phone set connector
ETHERNET: Ethernet 10/100BaseT RJ-45 connector
USB: USBConnector
CABLE: F-Connector

Chapter 1: Connections and Setup
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Wall Mounting
The number of the screw: 2 pcs
Direction for wall mounting: LED panel upward.
Dimension for the screw: TBD
There are 4 slots on the underside of the EMTA that can be used for wall mounting.
Note: When wall mounting the unit, ensure that it is within reach of the power outlet.
You will need 2 suitable screws which screw diameter would be 4.4 mm to wall mount the Cable
Modem or the Battery Pack. Two different wall mount directions could be chosen for the Battery
Pack.
Note: When wall mounting the unit, ensure that it is within reach of the power outlet.
To wall mount the unit:
1. Ensure that the wall you use is smooth, flat, dry and sturdy and use the 4 screw holes which
are 101.6 mm apart from each other.
2. Fix the screws into wall, leaving their heads 3 mm (0.12 inch) clear of the wall surface.
3. Remove any connections to the unit and locate it over the screw heads. When in line, gently
push the unit on to the wall and move it downwards to secure.

Chapter 1: Connections and Setup
Illustrations contained in this document are for representation only.
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Relationship among the Devices
This illustration shows a cable company that offers Euro-DOCSIS compliant voice/data services.
What the Modem Does
The voice over IP cable modem is a residential voice-enabled cable modem that provides voice
and high-speed data services over cable via your Telephony and Internet Service Providers (TSPs/
ISPs). 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. In addition, it converts standard telephone signals to a format that can be reliably
transported over the Internet.
What the Modem Needs to Do Its Job
The Right Cable Company: Make sure your local cable company provides data services
that use cable TV industry-standard Euro-DOCSIS or DOCSIS compliant technology (for
DOCSIS, only for frequencies between 93-861 MHz).
The Internet/Telephony Service Provider (ISP/TSP): Your cable company provides you
access to an Internet Service Provider (ISP) and Telephony Service Provider (TSP). The ISP is
your gateway to the Internet and provides you with a pipeline to access Internet content on
the World Wide Web (WWW). The TSP provides you with telephony access to other modems
or other telephony services over the Public Switched Telephone Network (PSTN).
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

Chapter 1: Connections and Setup
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internet service work for you.
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 Cable Modem (CM) Media Access Control (MAC) address
The Media Terminal Adapter (MTA) MAC address
Record your information here:____________________________
Serial Number: ____________________________
Model Number: ____________________________
CM MAC Address: ____________________________
MTA MAC Address: ____________________________

Chapter 1: Connections and Setup
Illustrations contained in this document are for representation only.
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Please verify the following with the cable company
The cable service to your home supports Euro-DOCSIS or DOCSIS compliant two-way modem
access (note on frequencies for DOCSIS usage).
Your internet account has been set up. (The Media Terminal Adapter will provide data
service if the cable account is set up but no telephony service is available.)
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.
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.

Chapter 1: Connections and Setup
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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.
Notes: For optimum performance,
be sure to connect your cable
modem to the first point the cable
enters your home. The splitter
must be rated for at least 1GHz.
Fig. 1: Basic Home Wiring

Chapter 1: Connections and Setup
Illustrations contained in this document are for representation only.
11
Important Connection Information
The cable modem supports Ethernet and USB connections simultaneously.
USB Connection to One Computer
Note: Only use the power supply
provided with this unit. Using
other power supplies may damage
the unit.
Fig. 2: USB Connection
If you received an Installation/Quick Start kit with the purchase of your modem, you should use
the software provided in that kit. If not, the Voice over IP Cable Modem CD included with your
modem contains the drivers, Installation Wizard, and other information you need to install your
Voice over IP Cable Modem. The Installation Wizard serves as your step-by-step guide to
connecting and configuring your Voice over IP Cable Modem.

Chapter 1: Connections and Setup
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1. Before you begin, close all open applications and dialog boxes as they may interfere with your
Voice over IP Cable Modem installation.
2. Insert the CD into the CD-ROM drive of your computer. A menu of options appears.
3. Click “Install RCA Cable Modem.” If the options menu does not automatically appear:
A. Go to the “Start” menu on the Windows menu bar, then click “Run.”
B. Type the letter of your CD-ROM drive followed by :\Thomson.exe.
C. Click “OK” to begin installation.
4. The Installation Wizard checks your computer to make sure you have the minimum
configuration specifications required to install the Voice over IP Cable Modem.
5. The Installation Wizard prompts you to attach a coaxial cable to the connector labeled CABLE
on your Voice over IP Cable Modem, and to the wall connection for your cable service.
If you’re using a splitter, click on “Installing a splitter.” The splitter diagram appears. When
you’re finished, hit the “Back” button.
6. Click “Next” to go to the next screen.
7. The Installation Wizard prompts you to attach the power supply. Use only the power supply that
accompanied this unit. Using other power supplies may damage the unit.
A. Insert the plug from the AC power supply into the POWER AC ADAPTER jack on your Voice
over IP Cable Modem.
B. Plug the other end of the power supply into the AC outlet.
C. Click “Next” when you have finished connecting the power supply.
8. The next step begins an automated installation of the USB drivers. This installation may
require Windows system files that are not currently located on your hard drive. If the
Installation Wizard needs those files, you will be asked to insert your Windows Operating
System CD-ROM. Click “OK” to continue.

Chapter 1: Connections and Setup
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9. Connect one end of the USB cable included with your Voice over IP Cable Modem to the USB
port on your computer. Connect the other end of the USB cable to the USB port on the Voice
over IP Cable Modem.
10. If the modem is detected, the “Windows Found New Hardware” window appears and the
“Installation Complete” screen appears.
USB Connection - Without Using the Installation Wizard
If you do not want to use the CD-ROM, follow instructions 1 through 5 to connect the Voice over
IP 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, and the other end to
the CABLE jack on the Voice over IP Cable Modem.
2. Connect the plug from the AC power supply into the POWER AC ADAPTER jack on the Voice
over IP Cable Modem and plug the power supply into an AC outlet.
3. Insert the supplied Voice over IP Cable Modem CD-ROM. Wait momentarily for the CD window
display.
4. Close all open applications and dialog boxes, including the CD window.
Note: Open applications may interfere with your Voice Over IP 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 Voice over IP Cable Modem.
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.
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.

Chapter 1: Connections and Setup
14
Note: If Windows 2000 does not recognize the Voice over IP 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”.
8. Choose ONLY the “CD-ROM” option and click “Next”.

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9. The search should find the driver for the “Thomson USB CDC Devices”. 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 “Thomson USB CDC Devices.”
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.
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.
F. The search should find either “RCA or Thomson USB Cable Modem” or “RCA or Thomson
DCM 3xx Cable Modem.”
11. Windows should now prompt you to install the “Thomson USB CDC Devices”. Click “Next” to