DSL Differences...

Tbirdkid

Diamond Member
Apr 16, 2002
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What is the difference between sdsl and adsl? I am gonna get dsl when I move in my new house but want to know the difference. Thanks
 

boi

Golden Member
Apr 12, 2002
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Taken from Broadbandreports.com


"Q: What's the difference between ADSL and SDSL (#1139)
A: ADSL is a DSL line that is mostly for low use. It has download speeds many times faster than its upload speeds. This is usually for simple tasks such as downloading and viewing webpages.

SDSL has upload speeds almost the same as its download speeds. This makes it optimal for gaming and servers of any type. Because the upload speed is high it is more expensive than ADSL.

For most uses ADSL is the best choice."
 

IcemanJer

Diamond Member
Mar 9, 2001
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just to add:

ADSL = asymmetric blah blah blah: download and upload speed not symmetric (not equal).
SDSL = symmetric blah blah blah: download and upload speed symmetric (equal).
 

buleyb

Golden Member
Aug 12, 2002
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Yep, real simple. Most average users download more than they upload, so why give them all that unused bandwidth? = ADSL

Businesses though, tend to send a lot of data too, so they really need it, lets give it to them, and charge them a lot = SDSL

Expect to get aDSL unless you want to pay a bundle more then $40-50 a month for it (if its no cost difference, take it and run)
 

rbhawcroft

Senior member
May 16, 2002
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its explained on howstuuffworks.com

basically the telephone line can carry certain frequencies, they are broken into about fifty blocks, aboout five get used for voice, and the rest are for DSL. in ADSL 3/4 are for downloading and 1/4 for uploading hence 125kbps/500kbps, and for sdsl they are split equally, so 300kbps/300kbps or whatever the exact rates are. Thats what the filter is for, it just has a frequency cut off so only the voice noise gets through.
 

Noodles71

Junior Member
Aug 14, 2002
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You also need to be aware of what type of encoding the xDSL line uses ie; G.dmt, g.Lite etc...... as most will not operate with each other.

cheers
Greg