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T1 - Is it Right for You?
Written by - Dolf Olviederlag, Staff Writer, T1 Links.com
What is T1? There are two types of
transmission circuits in use today, analog and digital. An analog connection is typically
the one you have to your carrier's central office, a single twisted pair of copper wires
carrying a single telephone conversation. For each simultaneous call you wish to make, you
need an additional pair of wires. For each pair of wires you have, you are charged another
monthly line fee.
If you could physically see an
analog transmission, it would appear as a jumble of irregular waves moving down the wire.
A digital circuit, however, is simply the transmission of regularly shaped pulses – a
bit stream consisting of ones and zeros. A one is represented by a pulse; a zero is
represented by no pulse.
To use a digital transmission system for voice conversations, the voice
signal must first be changed from an analog signal to the digital pulses. This is
accomplished by some very interesting electronic equipment, such as a card in your
telecommunications switch or by telecommunications equipment known as a channel bank.
If you want to just reduce your monthly bill without reverting to a T1
connection, you may consider looking for a cheaper switched long distance carrier.
To cut through the mystique, T1 is
simply a designation for one particular digital transmission service offered by most
telecommunications carriers. To be specific, T1 is a digital transmission link that can
carry 1.544 Mega bits (1,544,000 pulses) of information per second. These bits can
represent either voice, data, video, IMAGES or all of them combined. For voice
transmission, the T1 circuit is channelized so it can carry 24 separate voice
conversations simultaneously. Think of the T1 span as a pipe with 24 separate slots, with
each voice call occupying one slot. For data, video, and imaging, the channels can be
combined or segmented to create larger or smaller pipes within the T1 pipe. Thus, one
could have 15 voice conversations, a video program, and a host of remote operator stations
all communicating across a T1 span at the same time.
Is a T1 Connection Better than DSL?
Written by - Debra Johannesburg, Staff Writer, T1 Links.com
Physically, T1 is two twisted pairs
of copper wires, one which carries the signal into your premise and one which transmits
the signal out. Where one needs to have 24 distinct circuits to carry 24 analog
conversations, T1 reduces this number to two twisted pairs when the conversations are
converted to digital T1 format. This can lead to significant cost savings in your
telephone bill.
These dedicated T1 spans can carry
up to 24 voice conversations at once. Unless you have a T1 digital phone system, T1
conversion equipment, such as a channel bank, is still required. You will also pay a
monthly T1 circuit fee for the T1 connection. This monthly circuit fee can usually be offset
by reducing the number of lines to the local carrier, which were formerly used for long
distance traffic. Voilą, your monthly phone bill is magically reduced.
The economics and managerial
problems associated with that acquisition improve greatly if you could answer all the
calls at your existing location. Upon further study, telecommunications traffic theory
indicates that you will not have to add as many operators at your existing location as
there were previously at the newly acquired location. By reducing your labor cost, the
economics of the acquisition look even better. The problem you now face is how to answer
the calls at your existing business location. A dedicated point-to-point T1 provides the
perfect solution. This dedicated point-to-point T1 can carry up to 24 channels of traffic
(or 48 with compression) at a fixed monthly fee. You pay no per minute costs and have no
restrictions on the traffic the T1 transports.
T3 Line Vendor Review
Written by - Stu Jones, Staff Writer,
T1 Links.com
If a T1 service isn't enough to meet
your needs, you can choose from the Tier 1 service providers' comprehensive T3 line
(DS-3) service options. This high-speed line is offered in variables of up to 45
Mbps (from 3 Mbps to 45 Mbps or just 45 Mbps, depending on your needs) of continuous
bandwidth so you can optimize the response time of your Web site, transfer large video
files, or offer regional Internet access. Plus, there are many different service options
to fit any budget or bandwidth needs. Back-up options are also available.
A Dedicated Private T3 (DS-3)
Circuit is the ideal solution for large companies, universities, and organizations that
have a need for large amounts of bandwidth, such as an ISP (Internet Service Provider). A
T3 circuit can normally be utilized by thousands of users simultaneously. A private
dedicated full T3 circuit provides 45Mbps of bandwidth. A T3 circuit is made up of 28 T1s
or 672 64Kbps channels. As with the T1, we can offer fractional portions of a T3 circuit.
T-1 is a member of the T-carrier
system. T-carrier is a communications system used for carrying voice and data
transmissions in a digital format. T-1 meets the needs of businesses having multiple users
on a system requiring fast speed and broad bandwidth. For a fixed monthly rate, businesses
with 20 or more users can communicate via both voice and data. A Full T1 can accommodate
as many as 24 users working at 64 Kbps. T3 (DS3) – The 44.736 Mbps speed of a T3 is
actually the result of the aggregate-multiplexed signal of 28 T1s. A T3 line is physically
run from your company through the telephone company “valve” that determines the
amount of information that is able to travel through the pipeline. |
