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Samir,</div>
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I have purchased over a thousand SFPs from Fiber Store. I can recall less than 5 having problems when we received them (not all even DOA) and I know less than 10 dead even after deployment. Some we have ad running for 4+ years. We have done very little with
their SFP+ equipment, really only testing and a few lower priority links.</div>
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The only downside to the SFPs that we found was the variance of power. Say an Adtran, Cisco, Juniper, HP SFP is rated from -3dB to -8 db (all units I have used them with), the equivalent FS direct SFP we have seen as hot as 3dB and as weak as -15dB. These
extremes are fairly rare but we have still seen them.</div>
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Distribution (approximate):</div>
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80% SM single fiber SFPs (mostly 10km - 40km, some 60km & 80km)</div>
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<div style="font-family: Calibri, Helvetica, sans-serif; font-size: 12pt">7% 1Gb Copper</div>
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5% MM SFPs</div>
<div>5% SM dual fiber SFPs</div>
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3% others (SFP+, GPON, testing, etc)</div>
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I have not used them for any DWDM applications and only used them a few times on an older CWDM link that used standard SFPs into a MUX. This was not over great distances (less than 40 miles). With WDM SFP power consistency was important so we did not play
much with it, granted most of the SFPs I am purchasing are in the $10-$25 range so take the extremes with a grain of salt.<br>
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Their sales has always been very responsive and helpful. The support/engineering, the few times I worked with them, were helpful but the language barrier was harder here.<br>
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Brian<br>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> NANOG <nanog-bounces@nanog.org> on behalf of Samir Rana <samir.rana@cybera.ca><br>
<b>Sent:</b> Sunday, February 17, 2019 12:42 PM<br>
<b>To:</b> nanog@nanog.org<br>
<b>Subject:</b> fs.com dwdm equipment</font>
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Hello All,</div>
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Does anybody have experience with <a href="http://fs.com">fs.com</a> dwdm equipment in their production environment? Are you they working without any issue? How's their warranty support if the issue arises?</div>
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Thanks in advance for all the answers and help.</div>
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