[123371] in North American Network Operators' Group
Re: 1G/10G options over 130 km of fiber
daemon@ATHENA.MIT.EDU (Dale W. Carder)
Fri Mar 5 15:46:57 2010
Date: Fri, 05 Mar 2010 14:46:28 -0600
From: "Dale W. Carder" <dwcarder@wisc.edu>
In-reply-to: <Pine.LNX.4.64.1003051523270.27073@whammy.cluebyfour.org>
To: "Justin M. Streiner" <streiner@cluebyfour.org>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Mar 5, 2010, at 2:36 PM, Justin M. Streiner wrote:
> My gut tells me that the 2-point loss on the span at 1550nm will be somewhere around 30-35 dB.
What's your measured chromatic dispersion? You might need
to budget in the hit from compensation too. Some of the
super long range optics have wide tolerance of dispersion,
but probably not without a penalty.
If you don't have a measurement, you can estimate w/ the values
for that fiber type.
Dale
