I understand that they use different frequency ranges, but why can't the DSL freqencies be converted and sent over fiber somewhere between the CPE and the DSLAM ?
On Thu, Dec 10, 2009 at 11:41 PM, Dmitry Kiselev <dmi...@dmitry.net> wrote: > Hello! > > On Thu, Dec 10, 2009 at 08:48:27PM -0800, Yuri Bank wrote: > > > Why can't DSL signals pass through fiber optics, yet we have HFC networks > > that obviously have no issues going from copper to fiber. > > The modulation techniques DOCSIS and DSL use are similar, so what > prevents > > this from working with DSL? Is it that the RF is to weak and the > conversion > > process messes up the signal? > > It is becouse very different frequency ranges: > DSL 0.02-1.1 MHz for both up and downstreams > DOCSIS 16-30 MHz for upstream > 50-800 MHz for downstream > > -- > Dmitry Kiselev > _______________________________________________ cisco-nsp mailing list cisco-nsp@puck.nether.net https://puck.nether.net/mailman/listinfo/cisco-nsp archive at http://puck.nether.net/pipermail/cisco-nsp/
