THOMSON TWG850 User manual

TWG850/DWG855
digital ⎢BROADBAND
RESIDENTIAL VOICE GATEWAY

Important Information
ii
CAUTION
Disconnect power before
servicing.
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 Residential Voice Gateway and its
power supply.
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-PacketCable, Euro-DOCSIS, and DOCSIS compliant (TWG850)
This product was designed according to Euro-PacketCable Specification, Euro-DOCSIS
Specifications and Data over Cable Service Interface Specifications.
CableHome, PacketCable, and DOCSIS compliant (DWG855)
This product was designed according to CableHome Specifications, PacketCable Voice over IP
Cable Telephony Specifications and Data over Cable Service Interface Specifications.
It will operate on any DOCSIS-compliant Hybrid Fiber Coax (HFC) cable system and offers DOCSIS
and PacketCable Baseline Privacy to promote secure internet transactions and PC-secure
telephone service.
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:

Illustrations contained in this document are for representation only.
iii
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: _________________________

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Chapter 1: Connections and Setup
Introduction ............................................................................................................................ 1
Residential Voice Gateway Features ................................................................................... 1
What’s on the CD-ROM ..................................................................................................... 1
Computer Requirements.................................................................................................... 3
Wall Mounting ...................................................................................................................4
Residential Voice Gateway TWG850 Overview........................................................................... 6
Front Panel........................................................................................................................ 6
Rear Panel ......................................................................................................................... 7
Residential Voice Gateway DWG855 Overview .......................................................................... 8
Front Panel........................................................................................................................ 8
Rear Panel ....................................................................................................................... 10
Installing the Battery ....................................................................................................... 10
Relationship among the Devices ............................................................................................ 12
What the Modem Does .................................................................................................... 12
What the Modem Needs to Do Its Job............................................................................... 12
Contact Your Local Cable Company ................................................................................. 13
Connecting the Residential Voice Gateway to a Single Computer............................................ 15
Attaching the Cable TV Wire to the Residential Voice Gateway ......................................... 15
Important Connection Information .................................................................................. 16
USB Connection to One Computer ................................................................................... 16
USB Connection............................................................................................................... 18
Using Windows 2000 for USB Connection ........................................................................ 18
Using Windows Me for USB Connection............................................................................ 22
Using Windows XP for USB Connection ............................................................................ 23

Illustrations contained in this document are for representation only.
v
Ethernet Connection to One Computer ............................................................................ 25
Connecting More Than Two Computers to the Residential Voice Gateway ........................ 27
Telephone or Fax Connection .......................................................................................... 29
Activating the Residential Voice Gateway ............................................................................... 31
Chapter 2: Web Configuration
Accessing the Internet ........................................................................................................... 33
Outline of Web Manager .................................................................................................. 34
Status .................................................................................................................................... 35
Software.......................................................................................................................... 35
Connection......................................................................................................................35
Security........................................................................................................................... 36
Diagnostics .....................................................................................................................36
Wireless................................................................................................................................. 37
Basic ............................................................................................................................... 37
Security........................................................................................................................... 39
Access Control ................................................................................................................ 42
Advanced ........................................................................................................................43
Bridging .......................................................................................................................... 44
Chapter 3: Additional Information
Frequently Asked Questions .................................................................................................. 45
General Troubleshooting ....................................................................................................... 47
FCC Declaration of Conformity and Industry Canada Information ........................................... 49
Service Information................................................................................................................ 50
Glossary ................................................................................................................................ 51

Chapter 1: Connections and Setup
Illustrations contained in this document are for representation only.
1
Introduction
Residential Voice Gateway Features
zSupport Multiple Provisioning Mode
zStandard RJ-45 connector for 10/100BaseT Ethernet with auto-negotiation and MDIS
functions
zUSB Connector for USB interface
zTwo RJ-11 Foreign Exchange Station (FXS) ports for IP telephony
zSupport simultaneous voice and data communications
zTwo simultaneous voice conversations in the different FXS ports with different CODEC:
PCM A-law, PCM-law, G.723.1, G.729, G.729a, G.729e, G.728, G.726, BV16 and BV32
zEcho Cancellation
zVoice Active Detection (VAD)
zDTMF detection and generation
zComfort Noise Generation (CNG)
zSupport V.90 fax and modem services
zTransparent bridging for IP traffic
zRSA and 56 bit DES data encryption security
zSNMP network management support
zRemote operating firmware downloading
zSupport Web pages and private DHCP server for status monitoring
zClear LED display
zPlug and Play
What’s on the CD-ROM
Insert the Residential Voice Gateway 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.

Chapter 1: Connections and Setup
2
CD-ROM Contents:
zElectronic copy of this user’s guide in additional languages (PDF format)
zAdobe Acrobat Reader — application you can load to read PDF format, if you don’t have
it loaded already
zUSB drivers — required if connecting by USB
zLinks to Thomson and RCA web sites
DOCSIS and PacketCable are trademarks of Cable Television Laboratories, Inc.

Chapter 1: Connections and Setup
Illustrations contained in this document are for representation only.
3
Computer Requirements
For the best possible performance from your Residential Voice Gateway, your personal computer
must meet the following minimum system requirements (note that the minimum requirements
may vary by cable companies):
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 Residential Voice
Gateway.
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.

Chapter 1: Connections and Setup
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Software •A TCP/IP network protocol for each machine
•Microsoft Internet Explorer 4.0 or later or Netscape Navigator 4.0 or
later. (5.0 and 4.7 or later, respectively, are strongly
recommended.)
*Windows is a trademark of Microsoft Corporation.
**Macintosh and the Mac OS are trademarks of Apple Computer, Inc.
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.
To do this:
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.

Chapter 1: Connections and Setup
Illustrations contained in this document are for representation only.
5
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
6
Residential Voice Gateway TWG850 Overview
Front Panel
The following illustration shows the front panel of the TWG850 machine:
The LEDs on the front panel are described in the table below (from left to right):
Tel 2 Tel 1 WirelessMessage Cable
Activity
Cable
Link
PC
Link Internet Description
ON ON ON ON
ON 0.25
sec
ON 0.25 second ON ON ON
Power on 0.25 sec
ON FLASH X FLASH FLASH X X X From power ON to system initialization complete
ON ON ON
Boot-up
Operation
ON 1 sec X 1 second X X X Following system initialization complete to (before) DS
scanning
X X X OFF OFF OFF OFF FLASH Tuning
(Searching downstream signal)
X 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 X OFF OFF OFF FLASH FLASH Any RNG-RSP detected
(Normalizing power level and timing offset)
X X X OFF OFF FLASH FLASH FLASH Connecting
(Ranging complete, DHCP in progress)
X X X OFF FLASH FLASH FLASH FLASH Configuring (DHCP complete, configuration file download
in process)
X 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 X FLASH
ON
NO Cable Link
CM is registered
X 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 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 X OFF
FLASH X X X Internet ON-OFF switch off/No RF DS/US network traffic RF DS/US network traffic
X X X
OFF
FLASH X X X X
No message is delivered by the MSO
Email is available fro the user on the server
(Implementation of the message waiting LED will be via
Proprietary MIB)
Normal
Operation
X X
OFF
ON
FLASH
X X X X X
Wireless initiate fail or disable
Wireless initiate success or enable
TX/RX Wireless Traffic
X X X X X Wink X XNo service
Operation X X X 3 seconds ON followed by a flash OFF
NACO =OFF
BPI unauthorized (when BPI is ON)

Chapter 1: Connections and Setup
Illustrations contained in this document are for representation only.
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Tel 2 Tel 1 WirelessMessage 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
X X X FLASH FLASH FLASH FLASH FLASHSW
Download
Operation X X X From Right to Left
A software download and while updating the FLASH
memory
Rear Panel
15VDC: 15V DC-IN Power connector
TEL1 & TEL2 Telephony RJ-11 connector
ETHERNET: Ethernet 10/100BaseT RJ-45 connector
USB: USB Connector
REBOOT EMTA: Reboot this Residential Voice Gateway
CABLE: F-Connector

Chapter 1: Connections and Setup
8
Residential Voice Gateway DWG855 Overview
Front Panel
The following illustration shows the front panel of the DWG855 machine:
The LEDs on the front panel are described in the table below (from left to right):
Internet Ethernet
Power DS US Online 1 2 3 4 Tel 1 Tel 2 Battery Wireless USB Description
ON ON ON ON
ON 0.25 second ON ON ON ON ON ON X ON ON Power on 0.25 sec
ON FLASH FLASH FLASH X X X X X X X X X
From power ON to
system initialization
complete
ON ON ON
Boot-up
Operation
ON
1 second
X X X X X X X X X
Following system
initialization complete
to (before) DS scanning
ON FLASH OFF OFF X X X X X X X X X During DS scanning and
acquiring SYNC
ON ON FLASH OFF X X X X X X X X X
From SYNC completed,
receiving UCD to
ranging completed
ON ON ON FLASH X X X X X X X X X
During DHCP,
configuration file
download, registration,
and Baseline Privacy
initialization
ON ON ON ON X X X X X X X X X Operational (NACO=ON)
DOCSIS
Start-up
Operation
ON FLASH FLASH OFF X X X X X X X X X Operational(NACO=OFF)
ON ON ON ON X X X X FLASH OFF OFF X X MTA DHCP
ON ON ON ON X X X X OFF FLASH OFF X X MTA SNMP/TFTP
MTA
initialization ON ON ON ON X X X X FLASH FLASH OFF X X RSIP
ON X X X
OFF
ON
FLASH
ON
OFF
ON
FLASH
ON
OFF
ON
FLASH
ON
OFF
ON
FLASH
ON
X X X X X
No Ethernet Link
Ethernet Link
TX/RX Ethernet Traffic
Ethernet CollisionCPE
Operation
ON X X X X X X X X X X X
OFF
ON
FLASH
ON
No USB Link
USB Link
TX/RX USB Traffic
USB driver is not ready

Chapter 1: Connections and Setup
Illustrations contained in this document are for representation only.
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Internet Ethernet
Power DS US Online 1 2 3 4 Tel1 Tel2 Battery Wireless USB Description
CPE
Operation ON X X X X X X X X X X
OFF
ON
FLASH
ON
X
No Wireless Link
Wireless Link
TX/RX Wireless Traffic
Wireless is not installed
or disable
ON ON ON Both Lines On-Hook
ON FLASH ON Tel1 Off-hook, Tel2
On-hook
ON ON FLASH Tel1 On-hook, Tel2
Off-hook
AC Good
Battery Good
ON FLASH FLASH
ON
Both Lines Off-Hook
ON ON ON Both Lines On-Hook
ON FLASH ON Tel1 Off-hook, Tel2
On-hook
ON ON FLASH Tel1 On-hook, Tel2
Off-hook
AC Good
Battery Low
ON FLASH FLASH
FLASH
Both Lines Off-Hook
ON ON ON Both Lines On-Hook
ON FLASH ON Tel1 Off-hook, Tel2
On-hook
ON ON FLASH Tel1 On-hook, Tel2
Off-hook
AC Good
Battery Bad
ON
<CM Normal Operation>
FLASH FLASH
OFF
<CM Normal
Operation>
Both Lines Off-Hook
ON Both Lines On-Hook
FLASH Tel1 Off-hook, Tel2
On-hook
ON Tel1 On-hook, Tel2
Off-hook
AC Fail
Battery Good
FLASH
OFF
Both Lines Off-Hook
ON Both Lines On-Hook
FLASH Tel1 Off-hook, Tel2
On-hook
ON Tel1 On-hook, Tel2
Off-hook
AC Fail
Battery Low
FLASH OFF
FLASH
FLASH
OFF
Both Lines Off-Hook
Both Lines On-Hook
Tel1 Off-hook, Tel2
On-hook
Tel1 On-hook, Tel2
Off-hook
AC Fail
Battery Bad < All LEDs may be unlit due to lack of battery power>
OFF
OFF
< All LEDs may
be unlit due to
lack of battery
power>
Both Lines Off-Hook
SW
Download
Operation
ON FLASH FLASH ON X X X X X X X X X
A software download
and while updating the
FLASH memory

Chapter 1: Connections and Setup
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Rear Panel
TEL1 & TEL2 Telephony RJ-11 connector
ETHERNET 1-4: Ethernet 10/100BaseT RJ-45 connector
USB: USB Connector
REBOOT EMTA: Reboot this Residential Voice Gateway
CABLE: F-Connector
Rating 100-240V: Power connector
Installing the Battery
This section provides you information of installing batteries into the modem. Follow the steps
below:
1. Unplug the power cord of the power adapter from the modem if you have plugged it.
2. Remove the cover of the rear panel. There are two spare drives for you to install the
battery.

Chapter 1: Connections and Setup
Illustrations contained in this document are for representation only.
11
3. Insert the battery into the rear battery drive with the direction that the following picture
shows.
4. Put back the cover of the rear panel.
5. Now, the cable modem is on with the power of the battery. It is not necessary for you to
use power adapter again.

Chapter 1: Connections and Setup
12
Relationship among the Devices
This illustration shows a cable company that offers DOCSIS- and PacketCable-compliant
voice/data services.
What the Modem Does
The Residential Voice Gateway provides high-speed Internet access as well as cost-effective,
toll-quality telephone voice and fax/modem services over residential, commercial, and
education subscribers on public and private networks via an existing CATV infrastructure. It can
inter-operate with the PacketCable compliant headend equipment and provide the IP-based
voice communications. The IP traffic can transfer between the Residential Voice Gateway and
DOCSIS compliant headend equipment. The data security secures upstream and downstream
communications.
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 and Euro-PacketCable
or PacketCable-compliant technology.

Chapter 1: Connections and Setup
Illustrations contained in this document are for representation only.
13
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
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 gateway. You should have the following information ready (which you will find on the
sticker on the gateway):
•The serial number
•The model number
•The Cable Modem (CM) Media Access Control (MAC) address
•The Terminal Adapter (EMTA) MAC address

Chapter 1: Connections and Setup
14
Please verify the following with the cable company
The cable service to your home supports Euro-DOCSIS or DOCSIS compliant two-way
modem access.
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 whenever you need.
To disconnect your computer from the Internet, use the ON/OFF button to put the modem in
standby mode.
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.