[c-nsp] OT: Multimode fiber question

[Rick Coloccia]

You will see loss where the 50u and 62.5u connect together when the 
light is travelling from the 62.5u into the 50u, because there won't 
be as much fiber to receive the light as there was fiber carrying the 
light.  Depending on the link-loss budget of the entire path, you may 
be fine, it may work unreliably, and it may not work at all.

-Rick



At 12:11 PM 8/9/2006, you wrote:
>On Wed, 9 Aug 2006, Eric Helm wrote:
>
> > I've got to get this link up and going now, so I'm going to use what I
> > have, but I plan on having the 62.5 micron jumpers ordered to replace
> > the 50 micron ones.
> >
> > Are there any issues I can expect to see by having the 50 micron jumpers
> > on the 62.5 micron cable?
>
>What is the distance between the buildings, i.e. how long is that MM fiber
>run?  Having different diameter jumpers should not be a huge deal, but you
>might open yourself up to more modal/chromatic dispersion, especially if
>the distance between the buildings is pretty far.
>
>jms
>_______________________________________________
>cisco-nsp mailing list  cisco-nsp at puck.nether.net
>https://puck.nether.net/mailman/listinfo/cisco-nsp
>archive at http://puck.nether.net/pipermail/cisco-nsp/

--
Rick Coloccia
Network Manager, State University of NY College at Geneseo
119 South Hall, 1 College Circle, Geneseo, NY 14454
Voice: 585-245-5577
Fax: 585-245-5579