Ethernet LAN 1000BaseSX and Single Mode Fibre

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Subject Author Date
1000BaseSX and Single Mode Fibre Steve Wright 04-08-05
Posted by Steve Wright on April 8, 2005, 12:15 pm
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Hi all,

I'm hoping someone can advise, as I am unsure.

I have a short run of single mode fibre (~90 meters) between a couple
of buildings and have some switches that have 1000BaseSX SFP adapters
in them.

Am I correct in believing that with 1000BaseSX it has to be multimode
fiber? What are the chances of this working with the single mode fiber
as it is quite a short run?

Thanks for any help!

Steve


Posted by Daniel J McDonald on April 8, 2005, 4:11 pm
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>I have a short run of single mode fibre (~90 meters) between a couple
>of buildings and have some switches that have 1000BaseSX SFP adapters
>in them.
>
>Am I correct in believing that with 1000BaseSX it has to be multimode
>fiber?

Yes.

>What are the chances of this working with the single mode fiber
>as it is quite a short run?

Slim to none. 10 meters might make it.

LX gbics are pretty cheap - they are under $100 if you look hard enough.
Go buy a pair off e-bay and slap them in your device.

--
Daniel J McDonald CCIE # 2495, CNX
Visit my website: http://www.austinnetworkdesign.com


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