80 km BiDi XFPs

[frnkblk at iname.com (Frank Bulk)]

You're the first person to suggest that kind of configuration, so thanks.

We ended up purchasing an 8-wave DWDM from our transport vendor, as it
solved the problem and gives us a path to future growth.

Frank

-----Original Message-----
From: J?r?me Nicolle [mailto:jerome at ceriz.fr] 
Sent: Monday, April 29, 2013 12:29 AM
To: nanog at nanog.org
Subject: Re: 80 km BiDi XFPs

Le 03/04/2013 01:15, Frank Bulk a ?crit :
> BiDi XFPs

Why not using a duplex 120km and a circulator[1] ? This could be far
more reliable if you avoid PC connectors on the way.

You may also mux several DWDM waves using this and a low-loss mux (found
<1.5dB for 8 channels).

Of course, for such lenghts, you may need a chromatic dispersion
compensator.

[1] http://www.thorlabs.de/newgrouppage9.cfm?objectgroup_id=373
-- 
J?r?me Nicolle
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