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Re: OT: What do they mean: T1, T3, DS-3, DS-48, OC-3, OC-48, OC-192...



On Tue, 2005-09-20 at 09:23 -0400, Andy Anderson wrote:
> I know that this is off topic, but I've been curious for a while
> as to what, exactly, the acronyms (or designators, or whatever
> they're properly called) in the subject line mean.  I sort of
> have some sense of what a T1 is - a dedicated connection to the
> Internet via some ISP that is anywhere from 128 Kbps to 1.5 Mbps
> in bandwidth - but what does the T (or DS or OC) stand for?  Is
> there a reference somewhere?  Google was no help at all...
> 
> Thanks in advance to anyone who can shed some light on this.

apt-get install dict-vera dict dict-jargon dict-gcide \
      dict-elements dict-foldoc dict-devil dict-bouvier \
      dict-gazetteer dict-gazetteer2k dict-gazetteer2k-counties \
      dict-gazetteer2k-places dict-gazetteer2k-zips dict-hitchcock

$ dict T-1
1 definition found

From V.E.R.A. -- Virtual Entity of Relevant Acronyms (March 2005)
[vera]:

  T1
         [digital] Transmission link 1 [1.544 Mbit/s] (DS1, BIT)

$ dict DS-3
2 definitions found

From V.E.R.A. -- Virtual Entity of Relevant Acronyms (March 2005)
[vera]:

  DS3
         Digital Signal level 3 (T3), "DS-3"
         

From V.E.R.A. -- Virtual Entity of Relevant Acronyms (March 2005)
[vera]:

  DS3
         Digital Signal level 3, "DS-3"

$ dict OC-48
2 definitions found

From The Free On-line Dictionary of Computing (19 Sep 2003) [foldoc]:

  OC-48
  
     {Optical Carrier 48}
  

From V.E.R.A. -- Virtual Entity of Relevant Acronyms (March 2005)
[vera]:

  OC48
         Optical Carrier level 48 [2488,32 Mbps] (SONET, STM-16),
"OC-48"


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Ron Johnson, Jr.
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