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Digital signal 1,DS1, T1, DS-1, T-carrier signaling.. What are they, how fast are they and how do they work?

Digital signal 1 or DS1, also known as T1, sometimes "DS-1" is and are actually the same thing:  They are a T-carrier signaling scheme devised by Bell Labs.  DS1 is a widely used standard in telecommunications in North America and Japan to transmit voice and data between devices. E1 is used in place of T1 outside of North America, Japan, and South Korea. Technically, DS1 is the logical bit pattern used over a physical T1 line; however, the terms "DS1" and "T1" are often used interchangeably. (Bandwidth T1 NY http://www.TelservNJ.com)

image T1 lines can carry data at a rate of 1.544 megabits per second.

Most of us are familiar with a normal business or residential line from the phone company. A normal phone line like this is delivered on a pair of copper wires that transmit your voice as an analog signal. When you use a normal modem on a line like this, it can transmit data at perhaps 30 kilobits per second (30,000 bits per second).

The phone company moves nearly all voice traffic as digital rather than analog signals. Your analog line gets converted to a digital signal by sampling it 8,000 times per second at 8-bit resolution (64,000 bits per second). Nearly all digital data now flows over fiber optic lines, and the phone company uses different designations to talk about the capacity of a fiber optic line.

If your office has a T1 line, it means that the phone company has brought a fiber optic line into your office (a T1 line might also come in on copper). A T1 line can carry 24 digitized voice channels, or it can carry data at a rate of 1.544 megabits per second. If the T1 line is being used for telephone conversations, it plugs into the office’s phone system. If it is carrying data it plugs into the network’s router.

­image A T1 line can carry about 192,000 bytes per second — roughly 60 times more data than a normal residential modem. It is also extremely reliable — much more reliable than an analog modem. Depending on what they are doing, a T1 line can generally handle quite a few people. For general browsing, hundreds of users are easily able to share a T1 line comfortably. If they are all downloading MP3 files or video files simultaneously it would be a problem, but that still isn’t extremely common.

A T1 line might cost between $1,000 and $1,500 per month depending on who provides it and where it goes. The other end of the T1 line needs to be connected to a web server, and the total cost is a combination of the fee the phone company charges and the fee the ISP charges.  (Bandwidth T1 NY http://www.TelservGroup.com )

A large company needs something more than a T1 line. The following list shows some of the common line designations:

DS0 – 64 k­ilobits per second
ISDN – Two DS0 lines plus signaling (16 kilobytes per second), or 128 kilobits per second
T1 – 1.544 megabits per second (24 DS0 lines)
T3 – 43.232 megabits per second (28 T1s)
OC3 – 155 megabits per second (84 T1s)
OC12 – 622 megabits per second (4 OC3s)
OC48 – 2.5 gigabits per seconds (4 OC12s)
OC192 – 9.6 gigabits per second (4 OC48s)

Coffees of Hawaii - Winter Sale! (468x60)
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Golden State Fruit - Gifts and Fruit Clubs

Large Assortment of New Christmas Items. all quality stuff.

January 8th, 2009 Posted in Uncategorized

MOVING TO HAWAII SALE!!!

Thank you for your interest in our craigslist items!

We am moving from Des Moines to Hawaii So we are selling ALL OUR STUFF, furniture, games, toys, clothes, car and van, With shipping prices to high to Hawaii, we need to sell almost everything we own!

Feel free to e-mail us any questions you might have, Include you number and either I (Brad) or Terri will call you back asap. (don’t wait too long or you might miss out! lol)

 

Check out ALL our craigslist items by clicking HERE


 

Here are some just some of the items that I have purchased for Christmas.  I absolutely LOVE The holiday seasons and you can tell.

Each of the items in the below photos are brand new, never used, never opened items that were purchased this year in preparation for the Holidays, little did I know I was going to be moving! : )

I am selling everything you see listed in the photos all together, I will not break up this sale or sell parts of it, it all goes together.

The retail value on these items below is well over $500, I am (tearfully : ) parting with them all for $250, If after a couple of weeks they have not sold, I may consider accepting offers, or maybe eBay.

I have many other Christmas items that I will be selling, some used but meticulously cared for and some new.  reply if you want me to let you know when I post those items or if you would like to see the items before I post them.

I also have many Halloween items, everything from costumes and fake weapons to a huge inflatable Frankenstein’s head.

The amount of holiday related items I have is too much too mention and too much to photograph, if you are SERIOUSLY interested in seeing them and will keep your appointment, please contact me.

Thank you for looking ~Terri.

SANY0428 SANY0432 SANY0433 SANY0435 SANY0438 SANY0440 SANY0442 SANY0443 SANY0444 SANY0446 SANY0449 SANY0452 SANY0453 SANY0421 SANY0426 SANY0427

 

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christmas stuff

January 6th, 2009 Posted in Uncategorized

MOVING TO HAWAII SALE!!!

Thank you for your interest in our craigslist items!

We are moving from Des Moines to Hawaii So we are selling ALL OUR STUFF, furniture, games, toys, clothes, car and van, With shipping prices to high to Hawaii, we need to sell almost everything we own!

Feel free to e-mail us any questions you might have, Include you number and either I (Brad) or Terri will call you back asap. (don’t wait too long or you might miss out! lol)

Check out ALL our craigslist items by clicking HERE

Here are some just some of the items that I have purchased for Christmas.  I absolutely LOVE The holiday seasons and you can tell.

Each of the items in the below photos are brand new, never used, never opened items that were purchased this year in preparation for the Holidays, little did I know I was going to be moving! : )

I am selling everything you see listed in the photos all together, I will not break up this sale or sell parts of it, it all goes together.

The retail value on these items below is well over $500, I am (tearfully : ) parting with them all for $200, If after a couple of weeks they have not sold, I may consider accepting offers, or maybe eBay.

I have many other Christmas items that I will be selling, some used but meticulously cared for and some new.  reply if you want me to let you know when I post those items or if you would like to see the items before I post them.

I also have many new Halloween items, everything from costumes and fake weapons to a huge inflatable Frankenstein’s head.

The amount of holiday related items I have is too much too mention and too much to photograph, if you are SERIOUSLY interested in seeing them and will keep your appointment, please contact me.

Thank you for looking ~Terri.

CLICK PHOTOS TO ENLARGE

SANY0296

 

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colored glasses

January 1st, 2009 Posted in Uncategorized

MOVING TO HAWAII SALE!!!

Thank you for your interest in our craigslist items!

We am moving from Des Moines to Hawaii So we are selling ALL OUR STUFF, furniture, games, toys, clothes, car and van, With shipping prices to high to Hawaii, we need to sell almost everything we own!

Feel free to e-mail us any questions you might have, Include you number and either I (Brad) or Terri will call you back asap. (don’t wait too long or you might miss out! lol)

 

ANIMAT~12Check out ALL my craigslist items by clicking HEREANIMAT~12


Beautiful colored entertaining glasses.  Each glass is brilliant, deep colors, strong material, nonflexible heavy plastic will last you a lifetime.  These are quality glasses, not cheap in any way.

Blue, Orange, Red and Green.

(click image for larger)

party glasses3

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haloween stuff

August 27th, 2008 Posted in Uncategorized

MOVING TO HAWAII SALE!!!

Thank you for your interest in our craigslist items!

We are moving from Des Moines to Hawaii So we are selling ALL OUR STUFF, furniture, games, toys, clothes, car and van, With shipping prices to high to Hawaii, we need to sell almost everything we own!

Feel free to e-mail us any questions you might have, Include your number and either I (Brad) or Terri will call you back ASAP. (don’t wait too long or you might miss out! lol)

      

Check out ALL our craigslist items by clicking HERE

Check out ALL our eBay items by clicking HERE

  


 

LARGE collection of Halloween items, props, fog machine.  What you see in these photos is just a small portion of the entire amount we have to sell.  

 

Many of these items are brand new, still sealed even. 

 

We volunteered at a haunted house a few times and have collected many cool and creepy things.  we want to sell the entire lot, every Halloween thing we own all together to one lucky person.

If you are serious and you want to come and take a look, please call us and make an appointment.  we will not sell items separately.  everything goes together.

 

SANY0471 SANY0472 SANY0473 SANY0456 SANY0457 SANY0459 SANY0461 SANY0462 SANY0463 SANY0464 SANY0466 SANY0467 SANY0468

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Rubber Sheep Games free full screen flash games online, compete for prizes, play for cash, chat and compete with friends.


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coaxial connectors

July 27th, 2008 Posted in Uncategorized

MOVING TO HAWAII SALE!!!

Thank you for your interest in our craigslist items!

We are moving from Des Moines to Hawaii So we are selling ALL OUR STUFF, furniture, games, toys, clothes, car and van, With shipping prices to high to Hawaii, we need to sell almost everything we own!

Feel free to e-mail us any questions you might have, Include your number and either I (Brad) or Terri will call you back ASAP. (don’t wait too long or you might miss out! lol)

      

Check out ALL our craigslist items by clicking HERE

Check out ALL our eBay items by clicking HERE


This is an assortment of very high quality coax, coaxil coaxial cable connectors

also included are various testing filters.  when hooked up to a cable line in Minnesota, these filters brought in some pay channels including Showtime.  they should be used only for testing.

 

you get the whole box, everything you see here for $15

 

click photos for super sized view

 coaxil (2) coaxil coaxil (1)

rubbersheep.com_animated_banner
http://www.rubbersheep.com
Rubber Sheep Games free full screen flash games online, compete for prizes, play for cash, chat and compete with friends.


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