These three configurations are the main products we see now. Analog modems are used for dial-up connections. This is possible with the use of digital television encoding DVB. In fact, if your cable system has upgraded to digital cable, the new set-top DSL connections can range between Kbps and 6 megabits per second Mbps.
Interactive Set-Top Box The interactive set-top box is really a cable modem in disguise. This ties up the phone line, so you must disconnect in order to use the telephone for other purposes.
The primary function of the set-top box is to provide more TV channels on the same limited number of frequencies. Also, DSL and cable companies may cut off service or charge additional fees once users reach their service limit. Another interface for external Cable Modems is USB, which has the advantage of installing much faster something that matters, because the cable operators are normally sending technicians out to install each and every Cable Modem.
But some expert developers have now got involved, many from backgrounds of experience in radio, cellular or military communications where noise is a fact of life. On the cable, the data looks just like a TV channel.
With cable service, the reduction in speed can be dramatic. Inside the Cable Modem Cable modems can be either internal or external to the computer. Cable modems in fact can trace their history to the early days of Ethernet, when broadband Ethernets were being developed.
For Internet connections, cable uses bandwidth that is unused in cable television transmissions. In some systems, coaxial cable is the only medium used for distributing signals. That might be the cheapest implementation possible, but it has a number of drawbacks.
Thus you can use the telephone and surf the Internet at the same time. ISDN is also a dial-up service. The coaxial cable used to carry cable television can carry hundreds of megahertz of signals -- all the channels you could want to watch and more.
This may pose a problem in some CATV networks, requiring a more expensive upgrade of the network installations. You can either install an internal modem inside your computer or get an external modem for greater convenience and ease of installation.
Benefits DSL and cable modems are the most efficient and cost-effective tools for connecting to the Internet. Once connected, the modem will transfer data back and forth between your computer and your service provider.
Then the fiber is terminated and the signals move onto coaxial cable for distribution to individual houses. Cable connections can be as fast as 30 Mbps.
This sounds really fast, but that is ignoring some of the design features of Ethernet.
DSL and cable connections, on the other hand, are typically always on. These dial-up modems can download at speeds up to 56 kilobits per second Kbps.
Extra Space You might think that a television channel would take up quite a bit of electrical "space," or bandwidth, on a cable. In other systems, fiber-optic cable goes from the cable company to different neighborhoods or areas.
Features Most computers come with an analog modem. Over time more systems will arrive. A plus is that you can connect more computers to the Ethernet. The downside is that you need to add a cheap Ethernet card to your computer before you can connect the Cable Modem.
External Cable Modem The external Cable Modem is the small external box that connect to your computer normally through an ordinary Ethernet connection. Cable service is also available at reasonable prices, and can often be bundled with cable TV service. Streams When a cable company offers Internet access over the cable, Internet information can use the same cables because the cable modem system puts downstream data - data sent from the Internet to an individual computer -- into a 6-MHz channel.
DSL is always digital, but there are both digital and analog cable Internet modems. Cable modems are attached to a coaxial cable. Between these two types of equipment, all the computer networking, security and management of Internet access over cable television is put into place.
With DSL, however, the difference will probably be much smaller. It needs a network terminator and a terminal adapter to function.Concord Communications – Introduction to DSL Technology Õ 5 Ö DSL equipment DSL equipment resides on the customer premise, on the local loop, and in the central office.
Following are descriptions of key devices used in a DSL configuration, illustrated in Figure 2. DSL Modems. An Introduction to the Types of Cable and DSL Modems in Mechanism Report PAGES 2.
WORDS View Full Essay. More essays like this: mechanism report, types of cable, types of dsl modems. Not sure what I'd do without @Kibin - Alfredo Alvarez, student @ Miami University. mechanism report, types of cable, types of dsl modems. Satellite & Cable TV AN INTRODUCTION TO CABLE MODEM SYSTEMS Part - I Cable modems are being increasingly deployed on Indian CATV networks.
This article provides a. There are two types of internal modems: dial-up and WiFi® (wireless). Dial-up operates over a telephone line and requires a network access phone number and logon 5/5(2). The types of available modems include analog, digital subscriber line (DSL), cable and Integrated Services Digital Network (ISDN).
Analog modems are used for dial-up connections. DSL and cable are high-speed broadband connections. Introduction to Routers: Website by Michael Horowitz: Different types of Internet connections (DSL, cable, optical (such as FIOS), dial-up and Satellite for example) require different types of modems.
If need be, the wireless feature can be disabled in a router. I talk about routers and modems being separate and independent devices.Download