Range using single-mode SFPs across multi-mode fiber

Keegan Holley keegan.holley at sungard.com
Wed Dec 14 21:38:47 CST 2011


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?


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