Connecting two buildings
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Posted by Jared Perkins on August 1, 2006, 11:41 am
Please log in for more thread options Hi, I'm making a plan to connect two buildings over Ethernet that are at least 500 feet apart. I'm thinking of using fiber optic cable because of the distance. I think I want multimode fiber with sc/sc connectors. I'm not sure if the network I'm upgrading has gigabit Ethernet fiber optic support, so I want to use two TRENDnet 1000BASE-T to 1000BASE-SX Fiber media converters at either end. Furthermore, I want to run the fiber optic cable through a tube in the ground. Is this a good plan or should I try something different? Thanks, Jared ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- | |||||||||||||||||||||||||||||||
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Posted by Robert Redelmeier on August 1, 2006, 2:45 pm
Please log in for more thread options > Is this a good plan or should I try something different?
This sounds generally good. Conduit is a good idea -- leave a pullstring and some unterminated fibers. There is often a problem lwith water ingress, so the cable should be rated for direct burial. How much bandwidth you need will depend on that traffic. If the servers are in one building, and users in another, then you may need all the bandwidth you can muster. -- Robert | |||||||||||||||||||||||||||||||
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Posted by Walter Roberson on August 1, 2006, 3:04 pm
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>I'm making a plan to connect two buildings over Ethernet that are at least
>500 feet apart. I'm thinking of using fiber optic cable because of the >distance. I think I want multimode fiber with sc/sc connectors. I'm not sure >if the network I'm upgrading has gigabit Ethernet fiber optic support, so I >want to use two TRENDnet 1000BASE-T to 1000BASE-SX Fiber media converters at >either end. Furthermore, I want to run the fiber optic cable through a tube >in the ground. >Is this a good plan or should I try something different?
To me it sounds reasonable for present equipment. Looking ahead, I see that 10 gigabit (10000Base-SX) is only supported at those distances for 50 micron fibre, and under fairly specific technical conditions -- 86 metres max for the regular conditions, and only about 100 feet for 62.5 micron fibre. 10000Base-SX is not supported on SMF it appears. It appears that that distance is practical for 10000Base-LX (WWDM) over all the regular types of MMF. Hence, that fibre should be okay, but if you do switch to 10 gigabit at some point, you will have to go into LX rather than SX, unless you want to fit now to the tight specs for 10000Base-SX over longer distances. [Okay, so it probably won't, but once I'd looked up the information, I might as well post it so others don't chase the same details ;-) ] | |||||||||||||||||||||||||||||||
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Posted by Perkowski on August 1, 2006, 4:52 pm
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Make sure you use schedule 80 PVC for your underground conduit. Also, the fiber if multimode make sure your use 50/125 fiber. If you plan ever to use multigigabit (like 10GbaseT) you need 50/125, 62.5/125 fiber wont cut it. Singlemode is probably your safest bet though, but 50/125 will work. Perkowski > Hi,
least
> > I'm making a plan to connect two buildings over Ethernet that are at > 500 feet apart. I'm thinking of using fiber optic cable because of the
sure
> distance. I think I want multimode fiber with sc/sc connectors. I'm not > if the network I'm upgrading has gigabit Ethernet fiber optic support, so
I
> want to use two TRENDnet 1000BASE-T to 1000BASE-SX Fiber media converters
at
> either end. Furthermore, I want to run the fiber optic cable through a
tube
> in the ground.
News==----
> > Is this a good plan or should I try something different? > > Thanks, > > Jared > > > > ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet > http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+
Newsgroups
> ----= East and West-Coast Server Farms - Total Privacy via Encryption
=----
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Posted by Walter Roberson on August 1, 2006, 5:46 pm
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>Also, the fiber if multimode make sure your use 50/125 fiber. If you plan
>ever to use >multigigabit (like 10GbaseT) you need 50/125, 62.5/125 fiber wont cut it. >Singlemode is probably your safest bet though, but 50/125 will work. My research indicated distinctly otherwise; see my reply. I was pulling the information from ieee.org itself. | |||||||||||||||||||||||||||||||
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> that are at least 500 feet apart. I'm thinking of using fiber
> optic cable because of the distance. I think I want multimode
> fiber with sc/sc connectors. I'm not sure if the network
> I'm upgrading has gigabit Ethernet fiber optic support,
> so I want to use two TRENDnet 1000BASE-T to 1000BASE-SX
> Fiber media converters at either end. Furthermore, I want
> to run the fiber optic cable through a tube in the ground.