[147575] in North American Network Operators' Group
Re: Range using single-mode SFPs across multi-mode fiber
daemon@ATHENA.MIT.EDU (Keegan Holley)
Wed Dec 14 22:40:23 2011
In-Reply-To: <CAED=9Er2TjB5Bkac74CcB6gOpEyjC3j2hWDHPdG5TNu2mzZ_Wg@mail.gmail.com>
From: Keegan Holley <keegan.holley@sungard.com>
Date: Wed, 14 Dec 2011 22:38:47 -0500
To: oliver rothschild <orothschild@gmail.com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
2011/12/14 oliver rothschild <orothschild@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?
