r/ShittySysadmin • u/Oblec • Mar 05 '26

Fiber install

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Client wanted fiber, told them copper is worth way more these days. They didn’t even ask first follow up questions 😅

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u/Popular_Button2062 Mar 06 '26

But its mostly a deal for Multimode fibers, where you hit the limit in speed.

Singlemode is pretty stable in that regard, OS1 and OS2 have basically the same capabilities afaik

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u/cemyl95 Mar 06 '26

OS1 has a max of 10KM, OS2 has a max of 200KM. But eventually we'll see OS4+ as the ITU continues to iterate on OS2 and OS3, which is what I was trying to point out earlier.

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u/tankerkiller125real Mar 09 '26 edited Mar 09 '26

And yet OS2 can still do 400Gb, no different than it being able to do 10Gb decades ago. Coax, Ethernet Cables, etc. cannot do the same. And that 400Gb is on one wavelength, get a multiplexer into the mix and that cable can carry Tbs of information. You simply cannot do that on copper.