world of high speed data is full of misinformation, used to
fool YOU, the potential customer. As users of the
Internet, many of you may remember the promises offered by
service providers years ago when you first connected to the
Internet: unlimited access, stable rates and stable service.
Excitement followed and everyone signed up with these
providers in a rush to become part of the online world. As
such, you may also remember that most of these promises
were just ploys used to sign you into lengthy service
contracts that gave you mediocre to poor service at
best. Now that the world is entering the next level of high
speed data transfer, it is important that you are able to
discern fact from fiction. This page is designed to give you
the most accurate representation of the high speed data world.
are two main camps of service providers:
Cable modems and DSL.
modems are just a way of sending data over your
traditional cable lines. You do not need a
special line from your cable company to get this
service. The data is sent over the cable
system on a separate frequency from your television
channels. Your modem decrypts this data and
converts it into the useful data that you requested.
is an acronym for digital subscriber line. This
is the telephone industry's answer to the cable
modems. This functions much the same way except
instead of using your cable television line it uses
your traditional phone line. They separate the
signal from the phone company's main office into two
frequencies one for your phone and one for your data.
your existing cable line to transfer data to and from
your existing telephone line to transfer data to and
from your home.
you to use your telephone while online.
you to use your telephone while online.
has an always on connection.
has an always on connection.
The speed of hybrid fiber coax (HFC) cable and DSL Internet
access services are comparable.
DSL Internet access offerings typically are not as fast
as those offered via HFC. Depending on the DSL provider,
service levels can range from 128Kbps to 7Mbps downstream from
the Internet to the user while upstream service levels from
the user to the Internet can range from 128Kbps to 1Mbps. Over
HFC, service levels can range from 400Kbps to 10Mbps
downstream and 128Kbps to 10Mbps upstream. Service levels
depend on service agreements offered by each cable system
operator per market, and depend on whether the access is for
residential or commercial use. But typically, HFC has more
bandwidth available than DSL.
homes and offices cannot get the higher speed DSL
service because they are located too far from the telephone
company's central office. DSL circuits are prevented from
maintaining high-bandwidth connections past relatively short
distances, such as 18,000 feet. In contrast, HFC technology
provides all customers equal access to high-speed services.
DSL connections are "dedicated," whereas HFC
cable connections are "shared." As more users
are added to the cable-based Internet service, the speed of a
user's Internet connection decreases.
All connections to the Internet, from nearly any provider,
are shared at some point. In fact, the Internet itself is a
network of networks, shared by millions of users worldwide.
The only dedicated portion of a DSL circuit exists between the
user's home or business and the telephone company's central
office. Beyond that point, DSL subscribers are on the
telephone company's central office. Beyond that point,
DSL subscribers are on the telephone company's metropolitan
network, shared with other DSL, data and telephone
subscribers. The user's connection then is routed to an
Internet Service Provider (ISP), where it is shared with all
other ISP subscribers before being transmitted to the
Internet. Therefore, both DSL and HFC technologies provide a
shared access to the Internet - but in very different
versus dedicated" really asks "What is the overall
performance of the Internet connection?"
1. ATVC's HFC
network has been largely rebuilt over the past few years and
is designed with growth in mind. The network is highly
scalable, enabling expansion of available bandwidth to meet
increasing customer demands without major network
upgrades. ATVC can add an additional channel for capacity,
or create a new neighborhood "node,"
allowing bandwidth to double for a given group of users.
High-performance cache servers reduce the need to retrieve
frequently requested content (popular website pages) from
the Internet, further enhancing the user's online
customers connect to the Internet via a very high-speed Tier
1 backbone connection that is linked via fiber optic
directly to the internet. This is much different from
what our service areas are used to with their service
providers connecting through multiple backbone providers to
reach the internet.
Because customers within an HFC neighborhood node are using a
"shared" network, one user can more easily tap into
the data stream of another local customer.
Cable networks are as secure as phone networks. Neither
network is any less secure than the other. Currently,
many cable systems use proprietary technologies. These
technologies are inherently difficult to reverse engineer.
Although cable modems share a common cable infrastructure that
may serve many customers, each cable modem is addressed individually.
In order for someone on the same cable segment to eavesdrop on
another customer's data conversation, they would have to
access the much more complex radio frequency (RF) signal by
completely reverse engineering the proprietary cable system - a
highly unlikely scenario.
the DOCSIS standard, ATVC's HFC specifications will guarantee
user data privacy across the cable network by encrypting
customers' data traffic flow. With Baseline Privacy Interface
(BPI), ATVC controls distribution of encryption keys to its
customers' cable modems from its master telecommunications
centers and hub sites. Policing and filtering functions are
used to reduce risks from attacks targeted at a customer's PC.
These policing capabilities secure a customer's data via a
state-of-the-art data encryption standard (DES) algorithm.
When a cable connection is delivering digitized video, voice
and high speed data simultaneously to the home or office, the
cable modem user will suffer from "congested"
bandwidth, unlike a DSL user.
Because of the inherent ability of hybrid fiber-coax networks,
cable companies can assign dedicated frequencies for
delivering each video, voice and data service without
conflict. Thanks to the 862MHz capacity of ATVC's network and
plant, additional bandwidth is reserved for the next
generation of services yet to be developed. Cable networks can
do this because they can deliver much more bandwidth to their
customers than telephone lines can. Telephone lines are
limited to approximately 1MHz of bandwidth, which must be
shared between voice and data services. Since cable services
all use distinctly different channels, you can watch TV, talk
on the phone, and surf the Internet simultaneously without
impacting any individual service.
DSL is a new digital connection technology.
DSL technology comes in a variety of flavors, some of which
are delivered over the old copper, twisted-pair wiring used
for Plain Old Telephone Service (POTS). DSL was created to
squeeze more speed and capacity out of this existing wiring
system, which was designed for low-speed, low-capacity
voice communications. Much of this wiring may have been
installed decades ago. In contrast, HFC cable
architecture is relatively new. An HFC network can deliver
high-speed, high-capacity video, voice and data services to
homes and businesses without relying on the local
Our goal is that this will help you in deciding on a high
speed service provider. There are no wrong decisions,
only informed and uninformed ones. Our staff has provided you
with as much information as possible to make an informed
decision. No lip service, no dishonesty, no
exaggerations. We invite you to verify this information for
yourself. For one very simple reason. When you
discover that we were telling you the truth (while others are
only trying to sell you their service by any means necessary),
you will decide to choose us as your service provider.
If you still have any questions whatsoever, please
e-mail us at firstname.lastname@example.org
and one of our engineers will respond to your query as soon as
possible. What other service provider offers that?
look forward to hearing from YOU, our next valued customer.