z CableLabs DOCSIS 1.0/1.1/2.0, CableHome 1.1 and PacketCable 1.0/1.1 (upgradeable to
PC1.5) Standard Compliant
z Integrated battery backup for telephony
z Support Multiple Provisioning Modes.
z Support PacketCable NCS 1.0 MGCP1.0 (Media Gateway Control Protocol)
z Support PacketCable Multimedia specifications
z 4 Standard RJ-45 connector for 10/100BaseT Ethernet with auto-negotiation and MDIS
functions
z USB Connector for USB interface
z IEEE802.11g Wireless Access Point
z Two RJ-11 Foreign Exchange Station (FXS) ports for IP telephony (with CO over-voltage
protection, unit to be undamaged when plugged in local LEC RJ-11)
z Support simultaneous voice and data communications
z Two simultaneous voice conversations in the different FXS ports with different CODEC: PCM
A-law, PCM μ-law, G.729, G.729a, G.729e, and G.728
z Echo Cancellation
z Voice Active Detection (V AD)
z DTMF detection and generation
z Comfort Noise Generation (CNG)
z Support V.90 fax and modem services
z Transparent bridging for IP traffic
z RSA and 56 bit DES data encryption security
z Support VPN end point
z Multicast pass-through with MIBs to enable/disable multicast pass through feature
z SNMP network management support
z Remote operating firmware downloading
z Support Web pages and private DHCP server for status monitoring
Illustrations contained in this document are for representation only. 1
Chapter 1: Connections and Setup
z Telnet debug of voice call flows
z Clear LED display
z Plug and Play
z Support for UpnP QoS and UPnP MIBS
What’s on the CD-ROM
Insert the RCA Digital 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:
z Links to RCA web sites
z Electronic file of the instruction book in additional languages
z 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 Digital
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.
2
Chapter 1: Connections and Setup
Computer Requirements
For the best possible performance from your Digital Cable Modem, your personal computer must
meet the following minimum system requirements (note that the minimum requirements may
vary by cable companies):
CPU Pentium preferred PowerPC or higher
System RAM 16MB (32MB preferred) 24MB (32MB preferred)
Operating System Windows* NT/2000/Me/XP,
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
IBM PC COMPATIBLE MACINTOSH**
Mac OS** 7.6.1 or higher
Linux
10BaseT or 100BaseT 10BaseT or 100BaseT Ethernet
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 EMTA 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.
*Windows is a trademark of Microsoft Corporation.
**Macintosh and the Mac OS are trademarks of Apple Computer, Inc.
Setting the Modem in the Stand
Once you have the rubber pads attached to the bottom of the stand, place the EMTA Gateway
upright in the stand, making sure to line up the notch of the stand with the groove on the bottom
of the modem.
Illustrations contained in this document are for representation only. 3
Chapter 1: Connections and Setup
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.
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.
4
Chapter 1: Connections and Setup
EMTA Gateway 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):
Power
ON ON ON ON
ON 0.25 second
Boot-up
Operation
DOCSIS
Start-up
Operation
MTA
initialization
Operation
Power
CPE ON X X X X X X X X X X OFFX No Wireless Link
ON FLASH FLASH FLASH X X X X X X X X X
ON
ON FLASH OFF OFF X X X X X X X X X
ON ON FLASH OFF X X X X X X X X X
ON ON ON FLASH X X X X X X X X X
ON ON ON ON X X X X X X X X X Operational (NACO=ON)
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 OFFOFFX X MTA DHCP
ON ON ON ON X X X X OFF FLASH OFFX X MTA SNMP/TFTP
ON ON ON ON X X X X FLASH FLASH OFFX X RSIP
ON X X X
ON X X X X X X X X X X X
Internet Ethernet
DS US Online 1 2 3 4
ON ONONONONONX ON ON Power on 0.25 sec
ON ON ON
1 second
Internet Ethernet
DS US Online 1 2 3 4
X X X X X X X X X
OFF
OFF
OFF
OFF
ON
ON
ON
ON
FLASH
FLASH
FLASH
FLASH
ON
ON
ON
ON
Tel 1 Tel 2 Battery Wireless USB Description
From power ON to
system initialization
complete
Following system
initialization complete
to (before) DS scanning
During DS scanning and
acquiring SYNC
From SYNC completed,
receiving UCD to
ranging completed
During DHCP,
configuration file
download, registration,
and Baseline Privacy
initialization
No Ethernet Link
X X X X X
Tel1Tel2 Battery Wireless USB Description
Ethernet Link
TX/RX Ethernet Traffic
Ethernet CollisionCPE
OFF
No USB Link
ON
USB Link
FLASH
TX/RX USB Traffic
ON
USB driver is not ready
Illustrations contained in this document are for representation only. 5
Chapter 1: Connections and Setup
Operation ON
FLASH
ON ONONBoth Lines On-Hook
AC Good
Battery Good
AC Good
Battery Low
AC Good
Battery Bad
AC Fail
Battery Good
AC Fail
Battery Low
AC Fail
Battery Bad
ON FLASH ON
ON
ON ON FLASH
ON FLASH FLASH
ON ONONBoth Lines On-Hook
ON FLASH ON
OFF
FLASH
FLASH
<CM Normal Operation>
ON ON FLASH
ON FLASH FLASH
ON ONONBoth Lines On-Hook
ON FLASH ON
ON ON FLASH
ON
FLASH OFF
< All LEDs may be unlit due to lack of battery power>
This section provides information on installing batteries into the modem. Follow the steps
below:
1. Ensure the power cord is unplugged.
2. Remove the battery cover on the rear panel. There are two battery
compartments. You may install a single battery into either compartment.
3. Insert the battery into one of the rear battery compartments, as shown below.
Illustrations contained in this document are for representation only. 7
Chapter 1: Connections and Setup
4. Re-attach the battery cover.
5. Plug the power cord into an AC-recepticle that is always ON
(non-switchable). It’s best to secure the plug to the wall plate using an
extended wall plate screw. The battery will fully charge within 4 hours.
8
Chapter 1: Connections and Setup
Relationship among the Devices
This illustration shows a cable company that offers DOCSIS- and PacketCable-compliant
voice/data services.
What the Modem Does
THOMSON DWG855 is an integrated telephony and wireless gateway that is CableLabs DOCSIS
1.0/1.1/2.0, CableHome1.1 and PacketCable 1.0/1.1 compliant product that provides
high-speed Internet access as well as primary line telephony, and fax/modem services via an
existing CATV infrastructure. The DWG855 is equipped with 2-RJ-11 POTS interfaces, 4-port
Ethernet switch, USB, and IEEE802.11b/g Wireless interfaces. The DWG855 can inter-operate
with the PacketCable compliant headend equipment and provide the IP-based voice
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 DOCSIS-compliant and PacketCable-compliant
technology.
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
Illustrations contained in this document are for representation only. 9
Chapter 1: Connections and Setup
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 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 Digital 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: ____________________________
10
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