In my experience the FS optics seem to have a bit less of a quality
standard. I have had them fail at a higher rate than any other. I would
especially recommend against them if they are not being installed in a
climate controlled environment. If you do make sure you order the
industrial not commercial rated ones. I go through a massive amount of
optics when considering the ones I use for myself and all the installs I
do for my customers. The ones I see the least failures on are the vendor
specific, Integra, Finisar, Solid these I rarely see DOA and have few
failures in the field. Next group would Be Precision, FlexOptix,
eoptolink, OPlink, mikrotik. Might get 1 in 100 fail OTB and another 1-2
out of 100 fail in the first year. Ones to stay away from are OSI,
10Gtek, FS, Ubnt these I have received entire shipment or 20+ fail OTB
and are the ones I see most removed and replaced.
On 1/26/2022 1:36 PM, Mark Radabaugh wrote:
We have used both FS, FlexOptix, and SolidOptics.
All have been good, I just tend not to trust the FS optics as much as
the others on the more critical links.
Mark
On Jan 26, 2022, at 1:44 PM, Josh Luthman
<j...@imaginenetworksllc.com> wrote:
I've heard good things about Flex Optix.
I've been doing FS myself (cheaper). I've had no issues so far.
On Wed, Jan 26, 2022 at 10:40 AM Mark Radabaugh <m...@amplex.net> wrote:
The manufacturers supply a ‘programmer box’ that usually have a
USB connector, a SFP slot, and some software to reprogram the
SFP’s. The software usually lets you set how the SFP identifies
itself to the switch / router so that you can work around the
asinine vendors that insist on locking to vendor specific optics,
and to set the frequency on the tunable optics.
https://www.flexoptix.net/en/flexbox.html?395=1357&co9424=
<https://www.flexoptix.net/en/flexbox.html?395=1357&co9424=> for
example. They will send one for free if you order optics from them.
Mark
On Jan 26, 2022, at 8:25 AM, dmmoff...@gmail.com wrote:
How do you tune the tunable optics? Is it done in the config of
the router, or do you tune it before installing somehow?
*From:* AF <af-boun...@af.afmug.com> *On Behalf Of *Mark Radabaugh
*Sent:* Tuesday, January 25, 2022 9:33 PM
*To:* AnimalFarm Microwave Users Group <af@af.afmug.com>
*Subject:* Re: [AFMUG] CWDM vs DWDM, Single Fiber vs Dual fiber
We spare with tunable optics. Production is channel specific
but spares are tunable to the frequency. Price is usually 4x
the fixed optics, but as you noted, having to spare every
channel gets pricy.
Mark
On Jan 25, 2022, at 7:57 PM, dmmoff...@gmail.com wrote:
My recollection is the DWDM optics are slightly cheaper, but
the CWDM muxes are cheaper. I think if you fully populate the
CWDM MUX then the cost was a wash and it didn’t matter which
one you bought. If you are only ever going to use a few
channels then CWDM is noticeably cheaper.
The biggest hassle IMO is inventory and spares. If you’re
using 10 different color optics then you need 10 different
spares on the shelf. If you use 40 colors that cost $400 each
then you need $16,000 in spare optics. That’s not even a bad
scenario. Some of the more exotic optics are $2300 from Fiber
Store. I have a quote in hand for 80km 100G Arista branded
optics from another vendor for over $6000. If you’re using
multiple colors of those then you may find yourself with a
whole lotta capital tied up in spare parts.
*From:*AF <af-boun...@af.afmug.com>*On Behalf Of*Carl Peterson
*Sent:*Tuesday, January 25, 2022 4:43 PM
*To:*AnimalFarm Microwave Users Group <af@af.afmug.com>
*Subject:*[AFMUG] CWDM vs DWDM, Single Fiber vs Dual fiber
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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