The DSL Modems Source
How DSL
Modems works
If you are
reading this article on your
computer at home or office,
it probably arrived via
modem. A DSL
Modem is used to send
digital data over a
telephone line. In 1960
DSL Modems came in
existence to allow terminals
to connect to computers over
the telephone lines.
A DSL
Modem works by the
dedicated copper wiring
running between the phone
company nearest central
office to any normal home,
office or apartment. This
dedicated wire can carry
more than the 3,000 hertz
signal needed for your
telephone. When a DSL modem
is equipped in your house or
business, then a section of
your telephone wire can be
used to transmit high speed
internet connection. The
capacity is around 1Mbps
between the home and the
telephone company and 8 Mbps
between the phone company
and the home under ideal
conditions.
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A DSL
Modem in most homes and
business are connected to an
asymmetric DSL (ADSL) line.
The ADSL Modem divides up
the available frequencies in
a line that most Internet
users look at, or download,
more information then they
send, or upload.
A DSL
Modem is a
distance-sensitive
technology, the limit for a
DSL Modem is around
18,000 feet. Most
DSL
providers place a
lower limit on the distances
for their service. The
further way you are, you may
see speeds below the
promised maximums, while
customers nearer the central
office will have faster
connections and may see
extremely high speeds in the
future.
The DSL
Modem or ADSL technology
provide maximum downstream
speeds of up to 8 Mbps at a
distance of about 6,000 feet
and upstream speeds of up to
640 Kbps. Some vast
improvements are already
available in some areas
through services called
ASDL2 and ASDL2+. the ASDL2
increases downstream to 12
Mbps and upstream to 1 Mbps.
the ASDL2 improves
downstream to as much as 24
Mbps and upstream to 3 Mbps.
Major DSL
Providers
Below you can
read notes on the major DSL
providers including
Bellsouth, AT&T and SBC.
These are simply the
overview by the reviewer to
help you find and select the
DSL provider that is
available in your area.
Read more about the
Major
DSL Providers overview.
DSL vs
Cable Providers
When
comparing Internet service
via DSL vs Cable there are a
few things to consider.
First is availability in
your area. Call the
local Cable providers and
DSL providers and check the
address to see if they offer
service at the location.
Next you will want to
consider the speed options
and cost differences of
these two services.
Read more about
Cable vs
DSL.
SBC DSL
SBC DSL was
generally available in the
SBC phone coverage areas
which included large parts
of the Western States such
as Texas and California.
Read more about
SBC DSL.
AT&T DSL
AT&T bought
SBC in 2007 and renamed the
whole business AT&T.
They still have separate
networks though to the
consumer they go under the
one name. Read more
about the new combined
coverage area and the
AT&T
DSL service options.
Verizon
DSL
Verizon is
another of the major baby
bells who offers DSL
service. Check out the
Verizon DSL options and
coverage areas.
Bellsouth
DSL
Bellsouth is
the fifth DSL provider that
we offer details on their
service. Read about
the
Bellsouth DSL service
coverage areas and also
about their general options.
Westell DSL
Westell DSL
is the 6th most searched DSL
provider. Read more
about some of the main
Westell DSL options
and coverage areas.
DSL Modem
Generally a
DSL Modem is needed to setup
DSL in your home or
residence. A DSL modem
communicates over the phone
line with the phone
companies DSLAM. Read
more about
DSL Modems.
DSL Speed
DSL Ranges in
speed of service generally
from about 256kbps speed up
to about 3Mbps, though some
larger DSL providers are
offering forms of DSL that
are supposed to be up to
11Mbps. Most of the
time DSL is faster in
download speed and slower in
upload speed unless you pay
a higher fee for SDSL type
of service which is the same
speed up and down.
Read more about
DSL speed.
Wireless
DSL
Wireless
routers can take any
Internet service such as DSL
and make it available
throughout a home or office
with a wireless DSL router.
You can also search the
Internet today and find
Cafe's with wireless DSL
Hotspots. Read more
about
Wireless DSL.
DSL
Routers
A Router is
much faster than a hub or
modem and will often have a
firewall capability.
The main difference between
a switch and a router is
that the router has a smart
chip like a computer.
This enables it to handle
processes such as a
firewall. Read more
about
DSL Routers.
DSL Speed
Test
There are
many different available DSL
speed tests to check if you
are getting full speed out
of your Internet service.
You can find software to do
this or free online DSL
speed tests. read more
about options to do a
DSL speed test.
DSL Phone
Because of
VOIP services becoming
commonly available, there
are now many different DSL
providers who are also
offering DSL phone service
as a part of the package
deal. Read more about
DSL Phone services.
Cheap DSL
Shop around
and compare cheap and
expensive DSL services.
Often you will find that
there is little actual
differences in the services
other than the wording they
use to make it sound like
the more expensive services
are worth the higher rates.
Read more about
Cheap DSL
services.
Because your
DSL connection will be with
you for some time it is
worth choosing a plan and a
DSL Provider that
not only gives you what you
need today, but can also
grow with you. Look for a
plan that will give you the
most flexibility and room
for future growth.
Be sure to
bookmark us for:
DSL
Modems
Great
Internet Bandwidth Articles
Useful and interesting
information to know about
Internet bandwidth, data
centers, colocation, and
dedicated servers
can be found in our site's
resource articles. A few of
the articles are listed
below:
What is
Internet Bandwidth?
Wholesale Internet Bandwidth
Low-Cost Internet Bandwidth
What
is a Gigabit?
What
is a Colocation Data Center?
When
is it best to use Colocation
and when is a Dedicated Server
the best choice?
Top
Tier 1 Internet Backbones for
Wholesale Internet Transit
Below are more
resources on bandwidth
articles:
10GigE (10 Gigabit Ethernet -
10,000 Mbps)
GigE
(Gigabit Ethernet - 1,000
Mbps)
Oc 48
Internet Bandwidth
Oc 192 Internet Bandwidth
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