If you are just wanting to have multiple passive channels between two
locations it doesn't really matter if your talking less than 16
channels, Cost is about the same either way for equipment if your
distance isn't that long and won't need amps. With good optics you
should be able to get about 50km with 80k dwdm optics and a simplex
filter at each end. I would go with DWDM channels to get the most amount
of channels either way.
The big difference comes if your adding amps and wanting to pass
channels. Then you would want to lean more towards a dual fiber set up
especially if you are wanting 100G. You can still do these things with
simplex fiber DWDM systems but it adds a bunch of noise and limits the
range you can go. Also a great deal of 100G transponders don't like
split channels.
On 1/25/2022 3:43 PM, Carl Peterson wrote:
We are leasing a few new strands of dark to a couple locations. On
our other paths we have just Done BiDi for our ring or payload and
used another for our routed/management network. For these strands,
I'm thinking of doing passive WDM.
Any benefit to DWDM vs CWDM if you aren't expecting to scale it? Why
would you use two strands vs one strand? We generally use one strand
for everything, either BiDi or GPON so my brain just sort of assumes
that. What am I missing?
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