I once tried an LX-SMF-MMF-LX type setup using mode conditioning patch leads between the SMF-MMF and MMF-LX portions of the span. I would be hesitant to recommend it, simply touching the patch lead on the MMF-LX portion would result in horrendous error counts. Suffice to say, we bit the bullet and got some SMF blown through (tubes ftw).
I have also used LX-LX on short SMF runs of a couple of metres, for 1G and 10G, with no issues. On 27 January 2012 16:47, Pierre-Yves Maunier <na...@maunier.org> wrote: > 2012/1/27 Steven Tardy <s...@its.msstate.edu> > > > On 01/26/12 16:33, Pierre-Yves Maunier wrote: > > > >> > >> > >> It can happends that SX works on singlemode but it can fail anytime. > >> > >> just because you can doesn't mean you should. > > > > we have experience multiple cases where LX-MMF-LX works great for 3-5+ > > years... > > then one day no longer gets link. swapping to a different fiber pair > > restores link. > > can't remember SX-MMF-SX failing after years of service. > > > > > That's why I wrote 'but it can fail anytime' meaning, I strongly recommand > to NOT do it. > > > -- > Pierre-Yves Maunier >
