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Topic: Cable modem

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In the News (Sun 26 May 19)

  DSL vs Cable modem
Cable modems, which allow users to connect using the cable television network, seem to be first out of the gate with broader availability and lower costs with some concern about the security issues.
Cable modems are designed to take advantage of the "broadband" cable infrastructure enabling peak connection speeds over 100 times faster than traditional dial-up connections.
Because some cable networks are suited for broadcast television services, cable modems may use either a standard telephone line or a QPSK/16 QAM modem over a two-way cable system to transmit data upstream from a user location to the network.
www.cs.ndsu.nodak.edu /~mrehman/mp/assignment2/cableanddsl.html   (11969 words)

 Cable modem - Wikipedia, the free encyclopedia
Cable modems are primarily used to deliver broadband Internet access, taking advantage of unused bandwidth on a cable television network.
The PSTN return path cable modem service was considered 'one way cable' and had many of the same drawbacks as satellite internet service, and as a result it quickly gave way to two way cable.
Cable modems that used the RF cable network for the return path were considered 'two way cable', and were better able to compete with DSL which was bidirectional.
en.wikipedia.org /wiki/Cable_modem   (759 words)

 Cable Modem   (Site not responding. Last check: 2007-11-06)
Cable modems are notable in that the bandwidth to the home, referred to as the "downstream" rate, is considerably greater than the bandwidth from the home, referred to as the "upstream" rate.
An individual cable modem user today may experience access speeds from 500Kbps to 30Mbps with the average user receiving about 500Kbps to 2Mbps (depending on how many other users are on the network and how much bandwidth they are using up).
Regardless, companies are realizing the potential profitability of cable modem—The National Cable Television Association estimates that cable operators will spend over $33 billion over the next two years to upgrade their existing infrastructures for broadband services [3].
www.ksg.harvard.edu /stp-307/group6/cable.htm   (954 words)

 [No title]
By default, the cable modem is configured to auto-negotiate its speed and duplex setting to be the same as your ethernet card.
In most cases, cable modems are furnished as part of the cable access service and are not purchased directly and installed by the subscriber.
With cable modem service a user never has to wait to get connected to their server again, because they are always connected.
lycos.com /info/modem--cable-modem.html   (670 words)

 Cable Modem: Teledatacom Glossary
A cable modem is a device that enables you to hook up your PC to a local cable TV line and receive data at about 1.5 Mbps.
A cable modem has two connections: one to the cable wall outlet and the other to a PC or to a set-top box for a TV set.
Although a cable modem does modulation between analog and digital signals, it is a much more complex device than a telephone modem.
www.artesyncp.com /resources/glossary/cable-modem.html   (361 words)

 MIT IS&T: Cable Modem vs. DSL: A Comparison
The choice between cable modem or DSL will depend on what is available in your locale, and on what specific services or rates are best for you.
The cable modem is a device which attaches to the cable TV network connection and to your computer.
Cable networks are hierarchical in nature and require two paths for data transmission: one for downloading and one for uploading.
web.mit.edu /ist/topics/network/comparechart.html   (777 words)

 [No title]
The Model 5011 External ethernet cable modem was certified in a previous round (June?).
The problem is, none of these tests measure the actual speed of your cable modem: what they measure is the bandwidth between your cable modem and the test site itself, subject to a maximum cut-off at the speed of the modem.
In essence, the cable modem is a "virtual" NIC connected to a very big "virtual" LAN.
lycos.com /info/modem--cable-modems.html   (449 words)

 Cable modem termination system - Wikipedia, the free encyclopedia
A cable modem termination system or CMTS is equipment typically found in a cable company's headend and is used to provide high speed data services, such as cable internet or Voice over IP, to cable subscribers.
Traffic destined for the cable modem from the Internet, known as downstream traffic, is carried in IP packets encapsulated in MPEG packets.
Upstream data (data from cable modems to the headend or Internet) is carried in Ethernet frames modulated with QPSK or 16-QAM.
en.wikipedia.org /wiki/Cable_modem_termination_system   (543 words)

 What is cable modem? - A Word Definition From the Webopedia Computer Dictionary   (Site not responding. Last check: 2007-11-06)
Because the coaxial cable used by cable TV provides much greater bandwidth than telephone lines, a cable modem can be used to achieve extremely fast access to the World Wide Web.
This, combined with the fact that millions of homes are already wired for cable TV, has made the cable modem something of a holy grail for Internet and cable TV companies.
Despite these problems, cable modems that offer speeds up to 2 Mbps are already available in many areas.
www.webopedia.com /TERM/c/cable_modem.html   (541 words)

 Get a Cable Modem....Go to Jail
I explain again that I am not a Comcast cable TV customer, but only a Comcast@home customer, so there would likely not be a record of my name, unless she has records of Comcast@home customers as well as Comcast cable TV customers.
They now have a procedure to note @Home subscribers without cable TV service in their cable service billing system, and have added some checks and balances to ensure that their cable fraud investigators will be able to identify this type of situation in the future.
He did some testing at the cable modem (found a very weak signal), then at the connection where the cable enters my house (again, a weak signal), and then at the "pedestal" out on the street (again a weak signal)--he said it was likely weak because there were two video traps on my line.
www.geocities.com /flutocracy/cablemodem.htm   (6551 words)

 IEC: Cable Modems
Cable modems are devices that allow high-speed access to the Internet via a cable television network.
While similar in some respects to a traditional analog modem, a cable modem is significantly more powerful, capable of delivering data approximately 500 times faster.
This tutorial explores the high-speed access capability of cable modem technology in detail, with emphasis on mode of operation, network architecture, alternative technologies, and security issues.
www.iec.org /online/tutorials/cable_mod   (103 words)

 Cable Modem Providers HOWTO
They're currently waiving the modem rental fee "until they are available for purchase" but the information there is mixed from 15.04/month as of early 1999 (from the web page) to "not for some time" from their phone staff.
Also, my Nortel cable modem does not seem to care which machine or MAC address is connected to it; I have set up multiple machines on it and they all worked fine.
Cable modem: You have to be aware that your cable modem is a peripheral of your computer and not a standalone network unit.
www.cs.wisc.edu /niagara/data/lindoc/Cable-Modem.xml   (14632 words)

 Navas Cable Modem/DSL Tuning Guide
TCP is a packet-based protocol where data is transmitted in variable-sized blocks, typically with a maximum size of 500-1500 characters (usually 1500 characters for Cable Modem or DSL).
As an illustrative example, consider a DOCSIS cable segment with 4 upstream channels per downstream channel, and 1000 subscribers (a recommended maximum).
Security on a full-time Cable Modem or DSL connection to the public Internet is much more important than on a temporary dial-up modem connection.
cable-dsl.home.att.net   (7090 words)

 cable modem - a definition from Whatis.com
All of the cable modems attached to a cable TV company coaxial cable line communicate with a Cable Modem Termination System (CMTS) at the local cable TV company office.
Leading companies using cable TV to bring the Internet to homes and businesses are @Home and Time-Warner.
In addition to the faster data rate, an advantage of cable over telephone Internet access is that it is a continuous connection.
whatis.techtarget.com /definition/0,289893,sid9_gci211726,00.html   (437 words)

 DOCSIS (via CobWeb/3.1 planetlab1.tamu.edu)   (Site not responding. Last check: 2007-11-06)
The CableLabs® Certified™ Cable Modem project, also known as DOCSIS®; (Data Over Cable Service Interface Specification), defines interface requirements for cable modems involved in high-speed data distribution over cable television system networks (see PowerPoint slide show).
The certified cable modem project also provides cable modem equipment suppliers with a fast, market-oriented method for attaining cable industry acknowledgment of DOCSIS compliance and has resulted in high-speed modems being certified for retail sale.
Cable operators can provide a variety of high-value services through an “always-on” internet connection, including broadband Internet connectivity, telephony, real-time interactive gaming, and video conferencing.
www.cablemodem.com.cob-web.org:8888   (286 words)

 MachLink® - Cable Modem Internet Service
Cable Modem Service offers super-fast, dedicated Internet access through the same coaxial cable that provides MPW Cable TV service.
Cable is up to 100 times faster than a traditional dial-up modem during peak performance.
MachLink Cable Modem Internet access is available to all businesses and residences that can receive MPW Cable TV service.
www.mpw.org /machlink_cable.htm   (204 words)

Cablemodems.com has a large inventory of used cable modems.
All units are refurbished with a new power supply and a new CATV ethernet cable.
They have been tested and certified as good cable modems and now we are able to offer these units at rock bottom prices.
www.cablemodems.com   (131 words)

 Open Directory - Computers: Data Communications: Cable Modem   (Site not responding. Last check: 2007-11-06)
Cable Modem Centre - UK specific cable modem news with guides to help with your cable modem.
Cable Modem Check - Check to see if you can get cable modem access in your area.
Cable Modem Troubleshooting Tips - A definitive guide of advice and tips on overcoming problems when using cable modems.
dmoz.org /Computers/Data_Communications/Cable_Modem   (310 words)

 Amazon.com: Motorola Surfboard SB5100 Cable Modem: Electronics   (Site not responding. Last check: 2007-11-06)
Motorola SURFboard SB5100 cable modem is among the first to earn the Microsoft Designed for Windows logo for Windows Windows 2000, Windows Me, and Windows XP operating systems.
I got this cable modem for my folks a short while ago rather than have them continue to pay a monthly rental fee to Comcast.
Performance-wise, I can't say I noticed much of a difference from their old modem but cable bandwith can be variable depending on the number of users in the neighborhood.
www.amazon.com /Motorola-Surfboard-SB5100-Cable-Modem/dp/B00008Y1BX   (1407 words)

 Cable Modems   (Site not responding. Last check: 2007-11-06)
The conversion from digital information to a modulated RF signal (and vice versa) requires a cable modem and is performed both at the customer premises and at the cable operator's headend equipment.
Its aim is to ensure interoperability between equipment by standardizing system-level interfaces and therefore easing installation of cable modem equipment.
Cable networks therefore end up specifically tailored within each fiber node to meet local customer demand.
www.xilinx.com /esp/wired/optical/net_equip/cable_modem.htm   (258 words)

 End of Life - HomeConnect Consumer Cable Modem
If you have received a 3Com cable modem through your Cable provider, please contact them directly if you wish to return the product.
Please note that although we are discontinuing our Consumer line of Cable and DSL modems, we continue to focus on our business-oriented broadband solutions.
For a listing of the most frequently asked questions about the discontinuance of HomeConnect cable modem products and accessories, please visit the HomeConnect Consumer Cable Modem EOL QandA page.
www.3com.com /products/en_US/discontinued/cableeol.html   (162 words)

 Cisco - Cable FAQs
For a more complete discussion of this configuration please see Configuring NAT on Cable Modem.
Why is the Cisco uBR905 Cable Access Router a "cable access router" and not a "cable modem?"
For more detailed information about the remote-query command see Configuring cable modem remote-query Command.
www.cisco.com /warp/public/109/cable_faq.html   (2428 words)

 Cable Modem Troubleshooting Tips
This site covers some of the technical issues which can arise when troubleshooting a cable modem connection (including broadband via digital TV set top box) on the NTLworld and Telewest Blueyonder services in the UK and Ireland.
Otherwise, information not on one of those backgrounds should be valid for most cable operators world-wide, although appropriate allowances might need to be made to adjust for local circumstances.
Cable modem signal levels: how to read, and how they affect performance and packet-loss
homepage.ntlworld.com /robin.d.h.walker/cmtips/index.html   (713 words)

 Cable Modem Basics
Phillip has one of the most informative and useful cable modem sites on the Net.
Other links on the website are useful for general cable modem information.
Complete "how to" install linux and route your cable modem to all users on your network using ipchains.
www.cablemodeminfo.com /linbasics.x.html-ssi   (617 words)

 Toshiba Network Products : Products : PCX2600
This assures you that the Toshiba PCX2600 DOCSIS Cable Modem will work seamlessly with any DOCSIS network no matter where you are.
The cable modem is easy to install using either a USB or a standard Ethernet 10/100 connection to your PC or to a network hub / router in a small business.
With support for up to 16 PCs, the Toshiba PCX2600 DOCSIS Cable Modem is ideal for SOHO environments where secured, shared Internet access is a requirement.
www.toshiba.com /taisnpd/products/pcx2600.html   (275 words)

MSOs and CableLabs require interoperability among DOCSIS modems.
CableLabs is a research consortium; we do not market or sell cable modems.
To find out if cable modem service is available in your area, please fill out and submit the CableLabs Go2Broadband Service Locator form.
www.cablemodem.com   (286 words)

 Cable Modems: Information About High Speed Internet and Broadband Access
Cable Modems: Information About High Speed Internet and Broadband Access
Free Modem and speeds up to 6 Mbps.
Our cable modem information network will tell you all you need to know, as well as answer many of your questions about cable modems and how they stack up against other high-speed modems.
www.cable-modem.net   (205 words)

 Cable Modem
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www.downloadjunction.com /product/software/5501/index.html   (452 words)

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