Range using single-mode SFPs across multi-mode fiber

[orothschild at gmail.com (Oliver Rothschild)]

Some idiot jumpered runs that existed between 3 different buildings. That person did not know about the 550m limit that we also follow.

Sent from my iPhone

On Dec 14, 2011, at 22:38, Keegan Holley <keegan.holley at sungard.com> wrote:

> 
> 
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> 2011/12/14 oliver rothschild <orothschild at gmail.com>
> Thanks to all who responded to my clumsy first question (both on
> matters of etiquette and technology). The group I work with (we are a
> small project acting as a last mile provider) was in the midst of
> deploying this solution when I posed the question. We put the single
> mode Juniper SFPs (LX) on to a run of approximately 1670 meters. 
> 
> How did you end up with a MM run this long?  SX optics are only rated at 500 meters at best.  Even with mode conditioning jumpers more the 1km is a risk.  I'm glad it held up during testing though.  Just out of curiosity did you purchase dark from a provider?  Is it inside of a building?