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Joined: Oct 2000
Posts: 4,145 Likes: 4
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New T1 line(s) went in today!! Yaayyy !! Does it seem like things are a little faster? ![[Linked Image]](https://www.electrical-contractor.net/ubb/biggrin.gif) Bill
Bill
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Joined: May 2002
Posts: 1,716
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Absolutely, at least on my dial-up.
Roger
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Joined: Aug 2001
Posts: 599
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Bill,
Yes things are much faster. Very noticable. I am on a cable modem.
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Joined: Oct 2001
Posts: 597
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I'll third that!!!
I'm on dsl and ECN's pages snap again.
Al Hildenbrand
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Joined: Sep 2002
Posts: 1,498 Likes: 1
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Yes, although it still takes a second or so for the page to display. More likely due to the time it takes routing data across the Atlantic and for explorer to figure out what it means. ![[Linked Image]](https://www.electrical-contractor.net/ubb/smile.gif) [This message has been edited by C-H (edited 10-07-2003).]
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Joined: Aug 2001
Posts: 7,520
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Definitely speeding along from this side of the Pond. I'm on 56k dial-up, getting most ECN pages completely back within 3 to 4 secs.
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Joined: Sep 2002
Posts: 1,498 Likes: 1
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As an aside: T1, T2 and so on are some type of American designation. What do they mean?
In Sweden, there is no special terminology for capacity. Lines are simply rated in Mbit/s. E.g a DSL line to your home will get you .25-10Mb/s, whereas university lines are 1-2.5 GB/s. (The national network is 10 GB/s)
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Joined: Feb 2003
Posts: 4
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These are rough numbers.
Commercial long distance lines:
US:
DS0 ~ 56/64kbit/s
T1/DS1 ~ 1.54mbit/s
T2 = not used anymore/rarely ever
T3/DS3 ~ 45mbit/s
OC1 ~ 51.5mbit/s
OC3 ~ 155mbit/s
OC12 ~ 620mbit/s
OC48 ~ 2.5gbit/s
OC192 ~ 10gbit/s
EU+World:
E1 ~ 2.0mbit/s
E3 ~ 32mbit/s
Same OC lines.
Home use:
DSL can be symmetrical or asymmetrical
sym is usually small business class, running from 192kbit-2.0kbit/s, asymmetrical is normally residential with anywhere from 256kbit-3mbit downloads, and 128kbit-1.5mbit uploads.
There are other types like HDSL (phone companies use this to run T1 lines), IDSL (144kbit symmetrical for long distances), and VDSL (very high speed, not common in the US, but around in some places worldwide).
Cable can run between 10mbit download to 2mbit upload, and will depend on provider, network, and service plan.
LAN:
Token ring (being phased out) = 4 or 16mbit/s per ring
Ethernet 10mbit/s, runs on cat3 wiring
Ethernet 100mbit/s, runs on cat5 wiring
Ethernet 1000mbit/s, runs on cat5e + wiring (highly reccomended cat6).
All ethernet has ~100meter length limit over copper, and does come in fiber forms (multimode, singlemode) that can range up to 20+kilometers !.
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Joined: Aug 2002
Posts: 1,081
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Ditto--much improvement. I was just noticing last week that things seemed to be slowing down.
Xanathar:
Welcome aboard, and thanks for the great info!
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Joined: Aug 2002
Posts: 1,691
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Looks good here at home using the CATV connection ... and also at work via a LAN ![[Linked Image]](https://www.electrical-contractor.net/ubb/redface.gif)
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Posts: 812
Joined: April 2004
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