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#455874 05/11/11 12:55 AM
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I have a potencial Fiber Cabling job they have 3 locations that need fiber .they are one after another .What would be the best way to do this
I was thinking I could run a 6 strand to the first location then terminate that and use 2 strand there then another 6 strand to the next location and connect the 4 remaining strands from the first location terminate 2 strands ther then run another section to the next section for the last 2 strands

Its just one long run with 3 separate locations

or would there be any reason to make them all home runs all home runs

any thoughts would be greatly apperciated

Thanks

Tel-Data1

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#455875 05/11/11 01:58 AM
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Go with the home runs. Today they may only need one pair. But what about in the future?

#455876 05/11/11 03:51 AM
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What is the distance from A to B to C? Are you going underground or overhead? What are they using it for? Do you know what they plan to hook it up to?


-Ken in MD-
www.kyawacomm.com
#455877 05/12/11 12:21 AM
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Not sure on the distance yet but I would say no more than a total of 1500 feet but I still need to measure this .The cable would be running down an over hang of a loading dock exposed to outside but under a roof thats how most of the cables are run to the different business .This company has 4 location that are in different bays it would be for connecting to the exiting data network at the main location

#455878 05/12/11 04:25 PM
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This depends a bit on how they want to connect their network as well. I have a customer with a similar setup. The have cisco switches, 4 of them. So we go fiber from A to B, B to C, C to D, and D back to A. If that case you can get away with running one cabling and breaking it up. I will say if you do that, then go 12 strand. Otherwise, if they want everything going back to the main switch, then home run it with 6 strand.


Z-man
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#455879 05/12/11 11:50 PM
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Z-Man
I am wondering why would you have to have D go back to A

#455880 05/13/11 03:06 AM
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It sounds like a ring for redundancy. If any one fiber breaks then the switches will still be able to communicate. You can do the same setup with a star configuration also but since your using the same cable for both paths you have a higher chance of failure because if the fiber gets cut then you'll lose that switch whereas with a ring if a fiber gets cut the switches will still have a path to communicate with.

#455881 05/14/11 04:11 AM
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Exactly what tito said, plus, if they lose switch B, it doesn't take down switch C & D. It a redundency thing, and their corporate policy.


Z-man
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#455882 05/14/11 06:48 AM
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Ok..But I am a bit confused .I thought that each switch would have its own seperate 2 strands of fiber how would all the switches go down if they lost switch B or is this all working off the same 2 strands .

Just another note: There are only 3 location (A,B,C) A is the main location with a working network B is about 550 feet away from A and C is about 400 feet from B

I believe they are just installing 1 Computer at B & C

I would be just installing the fiber and the data company will be installing the fiber adapters

#455883 05/14/11 02:04 PM
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I have been doing fiber for quite a while now and I install a minimum of 6 strands to each location (I prefer 12 strands) with each providing a home run link back to the server/switch/router, etc. Maybe it's because the people here in western PA change IT companies like they were socks, but each IT management company will demand different connectivity resources. They never have a problem with multiple strands running back to the main server location.

Cisco and HP ProCurve make it easy with fiber connectivity integrated into their products, but other manufacturers require media converters and that is when it becomes most important to provide multi-fiber connectivity at each location. No one will ever fault you for providing more fiber, but don't be caught short for providing too few fibers. The cost, in over all material and labor is almost the same for 6 or 12 fiber. Personally, I would never run just two fiber in any instance when talking about separate buildings. Now, if there is only one computer and can NEVER be anything else, then you may have a point in running just a 2 fiber cable. I wouldn't, but that's just me and being old. smile

Rcaman


Americom, Inc.
Where The Art And Science Of Communications Meet
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