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Issue concerning UTP cable

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KhaledOsmani

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Hello,

Considering a small house network, consisted of a modem, and a set of 2 computers.
The network topology is a LAN network.
The issue is that one of the computers, is placed quite far from the modem, inside the house (for a distance > 25m)
Wouldn't be a data loss, while traveling all the way through the cable? Wouldn't be a voltage drop inside of it?
Should I place an amplifier on its extremity?
the network card mode, is set to Autoconfig on the computer.
Sometimes, there is a loss in connection between the modem and the computer, and many times, a terrible low connection is experienced on that computer.

What shouls be done, to avoid loss, and low speed connection (without changing the place of the computer itself)
 

Twisted pair ethernet cabling for 10 and 100 MBit/s is designed to work with segment lengths up to 100m. For 10BASE-T, twisted telephone cable should be sufficient, for 100BASE-TX, CAT5 unshielded or shielded cable is required by the standard. In cases where the signal quality is extraordinary bad, it might be helpful to configure the computers to use 10 MBit only.
 
If it is placed, in outer environment: public area, would it still be the same, as in efficiency as it was placed, inside a close place, like home?
 

As FvM stated, 100m is OK if you use standard CAT-5 (or CAT-5E or CAT-6) regardless of where the cable is located. Beyond that length you will start to see propagation problems, primarily due to the cable velocity factor and 'round trip' delays of data packets but not necessarily due to signal losses in the wire itself. If the cable is going outdoors where environmental considerations have to be considered, you can buy special weatherproof CAT-5 and CAT-6 cable which is like the normal cable but sheathed in an extra protective layer. It is more expensive and less flexible but far better protected against UV and moisture, in fact it can even be buried underground without a conduit pipe.

Brian.
 
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