nanog mailing list archives
Re: DWDM and EDFA and DCM
From: Mikael Abrahamsson <swmike () swm pp se>
Date: Wed, 22 Apr 2015 20:33:49 +0200 (CEST)
On Wed, 22 Apr 2015, Rodrigo Augusto wrote:
Does anyone have some experience to use dwdm monofiber mux/demux ( ex. fiberstore ) about 68km using a ADFA ? Have I to use a DCM( for chromatic dispersion ) on this distance? When I have to use a DCM ?
You have to use DCM when the chromatic dispersion caused by your distance exceeds what your receiver optical module can handle.
So the answer is "it depends". If you're using 1GBASE-DWDM optics then you'll be fine, if you use 10GBASE DWDM optics then it depends on the distance they were designed to handle, if you buy the 40km ones then you should have DCM.
-- Mikael Abrahamsson email: swmike () swm pp se
Current thread:
- DWDM and EDFA and DCM Rodrigo Augusto (Apr 22)
- Re: DWDM and EDFA and DCM Mikael Abrahamsson (Apr 22)
- Re: DWDM and EDFA and DCM Rodrigo Augusto (Apr 22)
- Re: DWDM and EDFA and DCM Baldur Norddahl (Apr 22)
- Re: DWDM and EDFA and DCM Evelio Vila (Apr 22)
- Re: DWDM and EDFA and DCM Rodrigo 1telecom (Apr 22)
- Re: DWDM and EDFA and DCM Shawn L (Apr 22)
- Re: DWDM and EDFA and DCM Rodrigo Augusto (Apr 22)
- Re: DWDM and EDFA and DCM Mikael Abrahamsson (Apr 22)
- Re: DWDM and EDFA and DCM Mikael Abrahamsson (Apr 22)
- Re: DWDM and EDFA and DCM Brandon Martin (Apr 23)
- RE: DWDM and EDFA and DCM Jameson, Daniel (Apr 23)