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ADSL: Broadband Internet Connectivity

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On This Page:

Introduction
The Value of DSL
How DSL Works
Service Reqs.
Availability
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ADSL is the perfect broadband solution for home and small businesses. Learn about the technology and compare it with other service options to see if DSL is right for you.

What Is DSL?

It's an "always-on" connection to the Internet. DSL stands for Digital Subscriber Line. It provides high speed and secure Internet connectivity over existing copper telephone wires.

Is It Really So Much Faster Than My Dial-Up Modem?

It can be up to 50 times faster! With DSL, surfing the web and sending e-mail occurs at speeds approaching instant. Downloading files with graphics and video can take just seconds.

Is DSL Reliable?

Yes! DSL is a dedicated line. In addition, Hubris Communications monitors all business class services (including ADSL) at three minute intervals 24 hours a day.

Will It Tie Up My Phone Line?

DSL is always on, yet your regular telephone service is uninterrupted. Because of this, you can still use your telephone for talking or sending faxes while surfing the Internet. You don't have to dial-up each time you want to check your e-mail or visit a website. Just launch the Internet program you need and jump in.

The Value of DSL

DSL is a great connectivity solution with many advantages over more expensive services. Find out how the reliability and affordability of DSL service from Hubris Communications add up to a great value for your home or small business.

Why Is DSL Such a Good Value?

Low Price, High Performance. Before DSL, dedicated high-speed service (such as a T-1 line) could cost over $1000 a month! Customers who didn't need the extremely high reliability of a T-1 solution were left to rely on dial-up connections, dramatically reducing efficiency, effectiveness, and their ability to make money while waiting for downloads of graphic-intensive web pages or e-mails with large attachments. DSL is the answer to this problem, providing affordable, high-speed Internet access at a low monthly cost.

How Does DSL Compare to Cable Internet Service?

DSL is a fast, secure, one-to-one connection. Cable has some inherent drawbacks. First, the cable network is shared, which means as the number of cable users increases, the speed on each individual's line decreases. Second, a shared network is less secure than a dedicated service like DSL, as neighboring cable customer can more easily intercept data or hack into another user's computer. Third, the upstream speed on a cable modem is generally no higher than 128 Kbps. DSL is available with upload speeds of up to 1.5Mbs.

How Does DSL Compare to T-1 Lines?

DSL is not for all businesses. Although DSL is generally reliable it is not as reliable as a traditional T-1. Businesses that need very high reliability and a quick mean time to repair when something goes wrong may need to remain with a T-1. However, for normal business usage DSL is generally a very economical choice.

How DSL Works

DSL technology has a complicated history. However, understanding the technology is important to understanding service availability and performance ratings.

Original Telephone Technology

Traditional phone service (sometimes called "Plain Old Telephone Service" or "POTS") connects your home or small business to a telephone company office over copper wires that are wound around each other and called twisted pair. Traditional phone service was created to let you exchange voice information with other phone users.

The type of signal used for this kind of transmission is called an analog signal. A telephone takes an acoustic signal (which is a natural analog signal) and converts it into an electrical equivalent in terms of volume (signal amplitude) and pitch (frequency of wave change). Since the telephone company's signaling is already set up for this analog wave transmission, it's easier for it to use that as the way to get information back and forth between your telephone and the telephone company. That's why your computer has to have a modem - so that it can demodulate the analog signal (lots of noise) into its digital equivalent (which is what your computer understands).

Limitations of Analog Data Transmission

An analog transmission only uses a small portion of the available "bandwidth" copper wires are capable of transmitting. The maximum amount of data that you can receive using ordinary modems and analog signals is about 56 Kbps (kilobits per second).

The ability of your computer to receive information via phone line is constrained by the fact that the telephone company's equipment filters information that arrives as digital data into analog form only. Your modem must change it the signal back into digital. In other words, the analog transmission between your home or business and the phone company is a bandwidth bottleneck.

The DSL Difference

Digital Subscriber Line (DSL) is a technology that assumes digital data does not require conversion into analog form and back. Digital data is transmitted to your computer directly as digital data and this allows the phone company to use a much wider bandwidth for transmitting it to you. Meanwhile, if you choose, the signal can be separated so that some of the bandwidth is used to transmit an analog signal so that you can use your telephone and computer on the same line and at the same time.

Factors Which Affect Data Rates and Availability

DSL modems follow the data rate multiples established by North American and European standards. In general, the maximum range for DSL without repeaters is 5.5 km (16,000 ft). As distance decreases toward the telephone company office, the data rate increases. Another factor is the gauge of the copper wire. The heavier 24 gauge wire carries the same data rate farther than 26 gauge wire. If you live beyond the 5.5 km range, you may still be able to have DSL if your phone company has extended the local loop with optical fiber cable.

What Does the "A" in ADSL Mean?

The "A" stands for "asymmetric." This means that the download speed and the upload speed on the DSL connection are not the same. This is a standard configuration. Most Internet activities (such as browsing web pages, reading email, etc.) demand a fast download speed. The upload speed is not critical, since you generally won't be sending vast amounts of data.

Service Requirements

DSL is a fantastic technology, but there limits to its applicability. Find out what requirements must be in place for the service to work for you.

Does Everyone Qualify for DSL?

DSL is a technology that is limited by the distance of your residence or business from the telephone company's Central Office and certain devices on the telephone lines. In some cases, a location may be too far from the Central Office, or certain devices on the phone lines may prevent DSL service.

Why Is DSL Distance Sensitive?

DSL is an electric signal that travels over a copper phone line. The physical properties of the copper limit the distance the signal can travel without becoming distorted or faded.

What Is the Distance Limit for DSL Service?

Distance is measured by the length of the cable that twists and turns underground. The distance in cable feet is always longer than the distance measured as the crow flies. The limitations are different for the different flavors of DSL. The closer you are to the telephone company's Central Office, the more DSL options you have.

Does DSL Require Special Equipment?

Yes. DSL requires Customer Premises Equipment (CPE) - a DSL router or bridge. Hubris Communications sells the CPE you need to get connected to DSL.

Does a Computer Need to Be Upgraded to Use DSL?

Most new computers come with a Network Interface Card (NIC, or Ethernet card) pre-installed. If your computer doesn't have a NIC, you can purchase one at any computer electronics store. Once the NIC is installed, it provides a jack on the back of the computer allowing the End User to connect your new DSL router to the computer.

Is DSL Service Available In Your Area?

Check our DSL Service Area page to see if the service is readily available in your area. We offer service to dozens of communities across Kansas.

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