max rated length of fiber?

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kcbass

Golden Member
Mar 15, 2001
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Originally posted by: spidey07

It depends on the application.

Is this gig ethernet? SX or LX? 100 Base-FL? 10 Gig? 10 base-F? Voice? Multimode fiber or single mode?

So the anwer is "it depends"

1000 Base SX is a common application using 62.5 or 50 micron multimode fiber. the max distance is 220 meters I believe.

As for installation you should pay somebody to run and terminate the fiber unless you have extensive experience with it.

you say here that 62.5 micron max length is 220 meters...I'm still confused on what exacly i'm getting. What type of fiber have we been discussing? Is this SX, LX, FX, etc. I don't know what these terms are. Will I have to tell the guys at graybar which one of these I want when I order it? What should I tell them?  Sorry, I thought I understood, but these terms confuse me
 

spidey07

No Lifer
Aug 4, 2000
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There are many different kinds of networks and interfaces.

What you have chosen is 100 Base-Fx, max length is 2 km - you're all set. Of you were using gigabit ethernet it would be different, but you are purchasing 100 meg ethernet transceivers.

The 62.5 micro multimode fiber is just the fiber - any length limitations are dictated by the active gear on each end of the fiber.
 

kcbass

Golden Member
Mar 15, 2001
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And just making sure for the fifth time that I'm on the same page as you....you're now talking about the ATFS212 with the SC connectors, correct? 
 

spidey07

No Lifer
Aug 4, 2000
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Originally posted by: kcbass
And just making sure for the fifth time that I'm on the same page as you....you're now talking about the ATFS212 with the SC connectors, correct? 

Yes. And the 100 Base-FX port is hard set to full-duplex. that's a good thing.

Make sure you have my fees included in the purchase request. I'd say this one was about 500 bucks.

;)
 

kcbass

Golden Member
Mar 15, 2001
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update: i've just been informed that the max distance of gigabit speed with the converters we were looking at is 660ft. The ones that are able to go 800ft and up cost about 1300 each. bump
 

skyking

Lifer
Nov 21, 2001
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Unless you are pushing monguououlously huge data or image files over that connection, gig is not worth the cost you have lined out. do a traffic analysis before letting you or someone else sell the gig E as "future proof" and "worth the extra expense". Most files that bounce back and forth to network printers, workstations, etc. are not big enough to hammer a 100 connection. It takes a ton of them, or huge graphics apps to do that. The real pros can attest to that for you.
If it becomes an issue, you can split the shipping department and use both pairs for less than $400 more, getting two 100 connections.

My two cents is used up, and I think maybe spidey's $500:p
 

kcbass

Golden Member
Mar 15, 2001
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yeah. I've got a guy coming out monday to look at what i'm proposing so he should be able to give me some answers. I think i'll take a printout of this post with me. The only problem I forsee with 100bse-t is we're switching our phones to a new cisco voice over IP which i've been told eats bandwidth like nothing else. 
 

spidey07

No Lifer
Aug 4, 2000
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Originally posted by: kcbass
yeah. I've got a guy coming out monday to look at what i'm proposing so he should be able to give me some answers. I think i'll take a printout of this post with me. The only problem I forsee with 100bse-t is we're switching our phones to a new cisco voice over IP which i've been told eats bandwidth like nothing else. 

100 base-FL is plenty fine for voice...it could handle 1000s of calls at 32 or 8 kbs.
 

skyking

Lifer
Nov 21, 2001
22,811
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The bottleneck is heading out of your network, unless you have some major big pipelines in/out.