Pardon the weird reply formatting... I subscribe to the digest.
You can use CWDM channels 1531 and 1551 for DWDM upgrades. Channels
25-40 will fit into 1551, and channels 50-61 will fit into 1531.
If all you care about is a single DWDM wavelength, then you can connect
directly to 1531 or 1551 without a DWDM mux. I would suggest deploying
a DWDM mux on one or both of those CWDM channels to increase the
capacity of your network.
I have a good presentation from Commscope about overlaying DWDM onto
CWDM that I can share with you. We use a good bit of Commscope CWDM and
DWDM muxes inside of splice cases in our network. It's great for
maximizing use of dark fiber.
--
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Kevin W. Brown | 2975B Manchester Rd. | E-Mail: ke...@qis.net
Quantum Internet Services | Manchester, MD 21102 | Voice: 410-239-6920
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My current spamtrap: qstkb74027...@qis.net
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Message: 1
Date: Thu, 21 Dec 2023 10:52:10 -0500
From: <dmmoff...@gmail.com>
To: "'AnimalFarm Microwave Users Group'" <af@af.afmug.com>
Subject: Re: [AFMUG] WDM transceivers
Message-ID: <00f301da3425$a8e33db0$faa9b910$@gmail.com>
Content-Type: text/plain; charset="utf-8"
Well if that works then a single transceiver ought to work too I should
think.
I can just wait for the right part, so it may be a moot point when all
is said and done, but I was curious about it.
From: AF <af-boun...@af.afmug.com> On Behalf Of castarritt
Sent: Thursday, December 21, 2023 10:34 AM
To: AnimalFarm Microwave Users Group <af@af.afmug.com>
Subject: Re: [AFMUG] WDM transceivers
I haven't heard of anyone doing it like that, but I think it should
work. What I have heard of is connecting a dwdm mux to one of the
channels of a cwdm mux and running multiple channels of dwdm over a
single cwdm channel, but I haven't tried that myself.
On Thu, Dec 21, 2023 at 9:31?AM <dmmoff...@gmail.com
<mailto:dmmoff...@gmail.com> > wrote:
Well you?d buy them because there are up to 96 DWDM channels, and only
up to 18 CWDM channels. You?d still be limited to the number of ports
on the MUX.
The situation is the CWDM MUX is already there, and our vendor
momentarily has a shorter lead time on DWDM. The upper CWDM channels
happen to overlap with DWDM. If I took a DWDM transceiver at 1570.01nm
and plugged it into the CWDM MUX on the 1570nm port there?s no reason
that shouldn?t work right?
-Adam
From: AF <af-boun...@af.afmug.com <mailto:af-boun...@af.afmug.com> > On
Behalf Of Josh Luthman
Sent: Thursday, December 21, 2023 9:27 AM
To: AnimalFarm Microwave Users Group <af@af.afmug.com
<mailto:af@af.afmug.com> >
Subject: Re: [AFMUG] WDM transceivers
My guess would be no...otherwise no one would buy DWDM multiplexers...
On Wed, Dec 20, 2023 at 5:38?PM <dmmoff...@gmail.com
<mailto:dmmoff...@gmail.com> > wrote:
Dumb question of the week:
Could I run a pair of DWDM transceivers through a CWDM multiplexer and
expect it to work? I?d only be using a small slice of the channel, but
if the DWDM wavelength is encompassed by the larger CWDM wavelength then
that light should still reach the intended destination, right?
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