File Download Calculator
How long will will my file transfer take?
Use our download calculator to estimate file download or transfer speeds. We offer this
tool to assist in determining which connection speed meets your needs. Actual transfer speeds will be
slower than these times due to latency. If the results of your
file transfer are in the hours, you want to consider looking at T1
service providers available in your city.
Measuring the maximum data throughput rate of a
communications link is a typical method of performing a measurement of the download / upload rate to
transfer a 'large' file and measure the time taken to do so. The throughput is then calculated by
dividing the file size by the time to get the throughput in megabits, kilobits, gigabits, terabits or
bits per second. Another factor which effects file transfer speeds is latency.
In fact, there are many overheads in transmission that mean the calculated 'effective'
throughput does not reflect the true situation. Normally throughput and latency are opposed goals. To
improve latency you typically want to increase how much the computer checks to see if you are trying
to interact. This checking overhead slows you down. However there is one very common exception to this
rule. Network protocols and programs tend to synchronize both ends regularly. If these
synchronizations are slow, then throughput can suffer.
Other Factors
Throughput in IT terms, this is the speed at
which a computer or network processes data end to end. It therefore is a good measure of absolute
performance, and we frequently will see internet connections rated in terms of how many bits they pass
per second (bit/s). However it is a very bad measurement of perceived performance, which is mostly
based on how quickly it responds to you. Responsiveness has far less to do with throughput than
latency.
Latency is a measure of amount of time between the start
of an action and its completion, whereas throughput is the total number of such actions in a given
amount of time.
T1 Access to the Web Written by
- Wyman Little, Staff Writer
T1 access is a digital transmission service that can be used for carrying voice and/or
data. A T1 connection is sometimes referred to as a "dedicated service" as the service is
delivered to and from the customer premise from the CO (Central Office) without combining it with
other traffic. A T1 connection is established by providing a "loop" or wire from the users
premises to the CO where the service provider has equipment. Part of the cost of a T1 is the
"loop charge" or the monthly rental fee for the wire that is rented from the local phone
company. Once the connection reaches the CO it can access the carriers network and reach any
destination.
T-1 provides high speed, point-to-point digital transmission line (up to 1.544 Mbps).
This can be used as a single high-speed data channel or it can be split into 24 channels and allocated
to either voice or data applications. It is widely deployed and readily available in most regions and
although the service is not diminished by distance from the CO, the price is sensitive to distance.
This is due to the rental of the loop from the LEC (Local Exchange Carrier). T1 is currently the most
common way that large companies connect their LAN to the rest of the world.
Are you ready for T1 service? You may be ready if you have critical services that need
a reliable connection to the internet. If you run ASP services, host e-mail servers or web servers,
have over 20 people accessing the internet or use video on demand you should consider T1 access. While
more expensive that DSL, T1 access is made to support the above applications. Also remember that when
you begin shopping for T1 service you should partner with someone who will act as your agent and
represent your best interests. Consider using a broker or agent to help you with your search and cut
through some of the industry lingo to help you get exactly what you need.
Contact us today for a custom price quote - 866-777-9166 or enter your location
information for Instant price quotes. T1 pricing
T1 Pricing Without the Wait Written by - Jeff
Johnson, Senior Editor
If you want T1 pricing in 2 seconds instead of 2 days,
you need GeoQuote. Since telecom
brokers have been online they have offered a valuable service. A broker will take your information and
shop for pricing with carriers he or she is intimately familiar with. The problem is not the
information you get back, the problem is when you get it back. Brokers can be as fast as 24 hours or
as slow as 1 week. How do you speed up the process? Get a real-time quote and save yourself the wait!
While many brokers claim to get back to you quickly and some even claim to have real
time quoting we have only come across one service that truly has real-time price quoting for dedicated
services. Their mantra of "1.5Mbps in 1.5 seconds" is exactly what they deliver. The speed
at which they offer the information is much like going to Expedia or Travelocity. When you want
information now, get it from a broker that can deliver it to you now.
Online quoting for dedicated service will likely evolve into broker services much like
the travel industry or the insurance industry. The complexity of the product and the geographic
sensitivity of the pricing, however, has slowed this process. Why use a Telecom
Broker?
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T1 DS-1 Provider State Select
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T1 available for the following states: Alabama Arizona
Arkansas California Colorado
Connecticut Delaware District
of Columbia Florida Georgia Hawaii
Idaho Illinois Indiana
Iowa Kansas Kentucky
Louisiana Maine Maryland
Massachusetts Michigan Minnesota
Mississippi Missouri Montana
Nebraska Nevada New
Hampshire New Jersey New
Mexico New York North Carolina
North Dakota Ohio Oklahoma
Oregon Pennsylvania Puerto
Rico Rhode Island South
Carolina South Dakota Tennessee
Texas Utah Vermont
Virginia Washington West
Virginia Wisconsin Wyoming
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Explanation of Terms
Bandwidth (8 bits = 1 byte)
T1, DS-1 or 1.5-DSL
1.536 Mbps (192,000 bytes per second) For definition see Webopedia's Dictionary
T-1 or for T1 Terms & Definitions
Wireless 2.4M
2.400 Mbps (300,000 bytes per second)
For more information on Wireless WI-Fi, Wireless Local
Loop (WLL), Radio In The Loop (RITL), Fixed-Radio Access (FRA) or
Orthogonal Frequency Division Multiplexing (OFDM) see Wireless
Application Protocol Forum, WI-Fi,
UWB, Soma
Networks, Navini Networks, IP
Wireless, Flarion Technologies,
etc.
Broadband over Power Line (BPL)
Digital Power line (DPL)
Broadband Power Line Communications (PLC)
3.0 Mbps (375,000 bytes per second)
For more information see
Current Communications, Cinergy
Power Line Communications Association
or HomePlug Powerline Alliance
T2 or DS-2
6.144 Mbps (768,000 bytes per second) For definition see Webopedia's Dictionary
T-2
Satellite - Commercial
24.00256 Mbps (3,000,320 bytes per second)
Trans-European TEN-34
34.08 Mbps (4,250,000 bytes per second)
Ultraband Cable
40.0 Mbps (5,000,000 bytes per second)
For more information see Advent
Networks
T3 or DS-3
44.736 Mbps (5,592,000 bytes per second)
For definition see Webopedia's Dictionary
T-3
WiMax Broadband Wireless
75.00 Mbps (9,375,000 bytes per second) For definition see Intel's WiMax
T4 or DS-4
274.176 Mbps (34,272,000 bytes per second) For definition see
Webopedia's Dictionary T-4
OPTICAL CARRIER
For definition's see Cisco Systems Glossary
of Optical Networking Terms
OC-1
(1 DS-3, 28 DS-1, 672 DS-0)
51.84 Mbps (6,480,000 bytes per second)
OC-3
(3 DS-3, 84 DS-1, 2016 DS-0)
155.52 Mbps (19,440,000 bytes per second)
OC-9
(9 DS-3, 252 DS-1, 6048 DS-0)
466.56 Mbps (58,320,000 bytes per second)
OC-12
(2 DS-3, 336 DS-1, 8064 DS-0)
622.08 Mbps (77,760,000 bytes per second)
OC-18
(18 DS-3, 504 DS-1, 12096 DS-0)
933.12 Mbps (116,640,000 bytes per second)
Gigabit Optical Networks
OC-28(4 DS-3, 672 DS-1, 16.128 DS-0)
1.244 Gbps or 1244.16 Mbps (155,520,000 bytes per second)
OC-36
(36 DS-3, 1008 DS-1, 24,192 DS-0)
1.866 Gbps or 1866.24 Mbps (233,280,000 bytes per second)
Fiber Optics, Fiberless Optics/Laser
For more information on Fiberless Optics/Lasers see
Ciena, Cisco,
Corning, IBM,
JDS Uniphase, Juniper
Networks, Lucent, Nortel,
Quest, Sycamore
Networks, Sun, TeraBeam
etc.
OC-48
(344 DS-1, 32,256 DS-0)
2.488 Gbps or 2488.32 Mbps (311,000,000 bytes per second)
OC-192
(192 DS-3, 5376 DS-1,129,024 DS-0)
9.953 Gbps or 9953.28 Mbps (1,244,000,000 bytes per second)
OC-768
40 Gbps or 40000 Mbps (5,000,000,000 bytes per second)
OC-3072
160 Gbps or 160000 Mbps (20,000,000,000 bytes per second)
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