Where I work, we have 5 "dry pair" circuits to customers (out of 1300). We provide the signaling on the lines with sets of Campus brand pair gain units at the sites and 14 card chassis style pair gain unit at our POP. They are much less expensive ($18 per month vs. $100 for business class DSL) but I can say the savings of $80 dollars or so a month is NOT WORTH IT for an organization that needs 24 X 7 availability of the circuit. The telco only garuntees that the wire won't have any opens or shorts, they make no promise of the medium having low noise ratio on the line. These legacy circuits have been very much a problem when it rains, gets hot or anytime the weather changes, but our customers are spoiled by the inexpensive price and won't upgrade to another, more reliable delivery. The telco seems very aware of the low/no profit margin on these circuits and are generally not very motivated to spend much time on them when there is a problem. I strongly discourage service providers from deploying this type of technology, however, we are getting ready to test a newer type of "magic box" (called Storm Port by vendor-I think) which is supposedly able to deliver 6Meg across dry pair at much greater distances. We are very skeptical of the vendors claims, but one of our customers which the vendor pitched wants to try it. I will report back to the group on how it works out.
"""Chuck Whose Road is Ever Shorter""" wrote in message news:[EMAIL PROTECTED] > ""Priscilla Oppenheimer"" wrote in message > news:[EMAIL PROTECTED] > > Uh, what is dry copper? Is it analogous to "dark fiber?" > > > as a matter of fact, yes. > > copper from your friendly telco with no dial tone. a local loop with no > signaling equipoment attached. alarm companies use it extensively, place > their own signal on it, and thwart the burglars > > I have heard tell of folks using dry pair to create private point to point > DSL. I don't personally know anyone who has done so. > > HTH > > > > > Thanks > > > > Priscilla > > > > "Chuck Whose Road is Ever Shorte wrote: > > > > > > ""Dain Deutschman"" wrote in message > > > news:[EMAIL PROTECTED] > > > > Hi All, > > > > > > > > Does anyone know if Cisco makes a product similar to the > > > Pairgain Campus > > > HRS > > > > or Celsian G250 LAN Extenders? I want to create a dsl > > > connection over dry > > > > copper between two sites. Cisco reseller helpline was mildly > > > helpfull. > > > What > > > > are some of you using for this type of situation? > > > > > > > > > I have heard it said that all you need to do is connect a > > > couple of 827's > > > and you are done. I don't know the specifics.. :-> > > > > > > http://www.pbs.org/cringely/pulpit/pulpit20010823.html > > > > > > http://www.isp-planet.com/technology/homebrew_dsl.html > > > > > > one place I saw said to check out what alarm companies order - > > > they use dry > > > copper. > > > > > > or you can use the Long Reach ethernet product from Cisco at > > > each end. I'm > > > sure there are competitors. > > > > > > > > > > > > > > Thanks, > > > > > > > > -- > > > > Dain Deutschman > > > > ccnp, css-1, cnss infosec, mcp, cna > > > > Data Communications Manager > > > > New Star Sales and Service, Inc. > > > > **Please support GroupStudy by purchasing from the GroupStudy > > > Store: > > > > http://shop.groupstudy.com > > > > FAQ, list archives, and subscription info: > > > http://www.groupstudy.com/list/cisco.html > > **Please support GroupStudy by purchasing from the GroupStudy Store: > > http://shop.groupstudy.com > > FAQ, list archives, and subscription info: > http://www.groupstudy.com/list/cisco.html > **Please support GroupStudy by purchasing from the GroupStudy Store: > http://shop.groupstudy.com > FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=74724&t=74117 -------------------------------------------------- **Please support GroupStudy by purchasing from the GroupStudy Store: http://shop.groupstudy.com FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html
