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Cabling Issues...(How long can I spread my LAN ?)

Medium Priority
Last Modified: 2013-11-09
Hi friends !

I have recently joined an educational institute. This institute is covering a big geographical area. It is not running in a big 4-5 stroy building. All the class rooms, labs, offices, conference halls are located in some distance to each other. Some offices are 500-800 meters far (nearly 1 km). But all the PCs in these chambers are connected to the ISA Server 2000 in a switched network.

Now I want to know that how long can I spread my LAN ? I wondor that if we say a 100BaseT network then a UTP cable can only work upto 100 meters then how the network of the institute is spreaded in such a big geographical area. Have they used Repeaters...!!!

I want to know about the cabling...

Kindly reply in this regard...



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Top Expert 2004

Fiber Optics.  Single mode fiber can go about 50Km wihout repeaters/switches.  Multimode, is shorter range, but well over 100m.
Dear you can use multmode outdoor fiber cable with 62.5/125 microns for the distance of 600 meters (even 800 meters too can be connected) for the distance more than 600 meters you can go for single mode outdoor fiber 9/125 microns. In the same building for different floors you can indoor fiber multmode 62.5/125 microns. For the pc you can connect with cat 6 UTP cable which can support upto to the speed of 1 giga with the distance of 100 meters.



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Remember, with its limitations, you can use a switch as a repeater, this can be a cheaper way to extend your network.
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