Quality 10Gb OM3 Fiber Cables

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jgreco

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Yeah, while mimicry is supposed to be the best form of flattery; plagiarizing is just flat out wrong. I tried to leave a comment that said something along the lines of "Plagiarize much?" and added the url to your thread. But not seeing it appear, heck not seeing any comments there actually.

I could be a total bastard and send a DMCA notice. :smile:
 

Ericloewe

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I could be a total bastard and send a DMCA notice. :)
Sounds reasonable. It's by far the most well-written content on that blog.
 
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One of the things to remember is that fiber damages more easily than copper, and that the damage isn't always obvious. The thicker jacket will do a better job at protecting against an inadvertent pinch or pull.

That's what I was afraid you'll say, I'll get 3.00mm then. They have 3.00mm what they called armor edition that was advertised that "an adult person could step on it and won't get damaged"


HAAAAAAA, I've been plagarized! Rat fscking bastard! https://fiberopticsof.wordpress.com/2015/07/17/10gbe-networking/ Look at that. Most of it is the first part of my 10 gig networking primer.

It's seems the sentence about the "forklift upgrade"and the one before that is what gave him away for sure. Despite the fact that in the begging this blog was very well masked by saying starting with the statement "everyone wants 400Gb today..." This statement was so stupid I would assume it was place a decoy.

Take it as a compliment. People steal and copy things with value nobody steals crap. So He found it was very good and copy from it, so what. Not that I approve this sort things.

Plus you have credibility here that is something nobody can steal. If you know what I mean.Feeling better, now ?:smile:
 
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I don't pretend that the information I provide is particularly new or unknown, but what I like to do is to try to make this stuff accessible in the context of a bunch of enthusiasts on a forum who have no experience with it. I write this stuff because it gives me pleasure to think that all of you can benefit from the knowledge and experience I've gathered.

That's where the credibility comes from. And that can't be copied.

The reason I ask you and other members for opinion on various topics is not cause the information is impossible to find anywhere on internet, but because from I value certain people's opinion. And that value comes from many conversation with them in the past.

The opinion of one persons who knows what is talking about is worth more that 1000 blogs you can find on internet.
 

jgreco

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That's what I was afraid you'll say, I'll get 3.00mm then. They have 3.00mm what they called armor edition that was advertised that "an adult person could step on it and won't get damaged"

Which is probably true of 3mm fiber in general. It isn't particularly crush-able by a foot. However, you can still give it a good sharp kink and break the glass.

It's seems the sentence about the "forklift upgrade"and the one before that is what gave him away for sure. Despite the fact that in the begging this blog was very well masked by saying starting with the statement "everyone wants 400Gb today..." This statement was so stupid I would assume it was place a decoy.

I'm not even really finding 40 all that useful, and too expensive.
 

Bidule0hm

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I'm not even really finding 40 all that useful, and too expensive.

That's why I said that statement like :"100G and 400G networking is the people want..." is extremely stupid and there is no way to punish this person even more than what the nature already did to him :smile:

P.S. And this was published on July 2015. So it's kind of what the people wanted a year ago :smile:
 
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This is to reply to @jgreco and @Bidule0hm on how much fiber cable should take:

I am trying to make a loops from patch panel to the 2nd 1u position where the switch is by skiping 1U position in between patch panel and switch.

Instead of going with fiber cables around the rack I want to do same thing I did with cat6 cables as you see on the pic ans still be able to close the front door (have patch panel then skip 1U position to help bending and then use the next one to connect) Like the yellow I draw on the pic.

Do you think fiber cable will be able to stand that bend from 1U to the second next 1U with very short (perhaps 0.17M) fiber cable ?
 

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Bidule0hm

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Bidule0hm

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Ok, TL;DR: usually the minimum bending radius is about 10 times the diameter of the fiber so it should be okay for what you want to do ;)
 

Mlovelace

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2.00mm fiber is more then fine for any inner/intra rack connections. I would buy 3mm if I were going to do an interior building pull, but even then those pulls should be done through fiber flex pipe. Also, just my two cents, if you're buying new fiber patch cables you might as well buy OM4 instead of OM3; gives you some future proofing.
 

jgreco

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This is to reply to @jgreco and @Bidule0hm on how much fiber cable should take:

I am trying to make a loops from patch panel to the 2nd 1u position where the switch is by skiping 1U position in between patch panel and switch.

Instead of going with fiber cables around the rack I want to do same thing I did with cat6 cables as you see on the pic ans still be able to close the front door (have patch panel then skip 1U position to help bending and then use the next one to connect) Like the yellow I draw on the pic.

Do you think fiber cable will be able to stand that bend from 1U to the second next 1U with very short (perhaps 0.17M) fiber cable ?

Maybe I'm stupid but I don't even quite get what you're asking. There already appears to be a fiber connecting those two, and of everything you've got there it's about the closest thing to an acceptably run fiber patch you have.

Note that while I understand what you've done here, I'm very much a proponent of having a large jack field at the top and then switchgear patched at the bottom.

320px-19-inch_rackmount_Ethernet_switches_and_patch_panels.jpg


This allows easy replacement of the switchgear, especially if you change strategies and move to a chassis switch, or switch with other form factor or port density. I don't care for the slack management in this picture and if I have the time I am often crimping patches "to length" for each run.

Ideally you want cable management such that you're not unduly digging through the cabling that's there, though everybody has a different idea of what exactly that means.
 

jgreco

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2.00mm fiber is more then fine for any inner/intra rack connections. I would buy 3mm if I were going to do an interior building pull, but even then those pulls should be done through fiber flex pipe. Also, just my two cents, if you're buying new fiber patch cables you might as well buy OM4 instead of OM3; gives you some future proofing.

We disagree; the stuff that's being handled should be more robust. As a matter of fact, if I were pulling, and there was more than a few runs, I'd actually be using the 2.00mm stuff, possibly bundled.
 
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Ok, TL;DR: usually the minimum bending radius is about 10 times the diameter of the fiber so it should be okay for what you want to do ;)

No very helpfully I am afraid. Which diameter outside ? from 0.9mm to 3.00mm therse 3x difference , but the fiber inside is the same thickness and is so much thinner. I don't think this rule applies for the fiber.
 
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OM4 instead of OM3

I just don't understand the physical deference if order to determine is there trade of in going OM4. With Copper cables (cat5,cat6,cat7) I do understand the physical difference and I don't see any possible trade off, except the cable might get little bit more tough to work with.
 
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