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splitting cat5


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1beer2go's Avatar
1beer2go 1beer2go is offline
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05-Jul-2010, 11:18 AM #1
splitting cat5
if you split cat5. like one run to router and then go to Two different wall jacks in same room, why does it not work until one run is eleminated? is there a homemade jumper to install in unused jack that will make this work? I don't understand how it senses the unused jack. I used scotch locks. took each wire and split it to go to two different walls. Only using one jack at a time. Looking for explaination and quick fix.
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05-Jul-2010, 12:42 PM #2
You can't split CAT 5 cables like that because when you have two computers plugged in, the router transmits information intended for one computer to both of them; and the two computers transmit into one receive input on the router. It also messes up the 100 ohm cable impedence making it likely neither computer will work.

To do what you want, you need to run separate cables to the router. If the router doesn't have enough ports then you need to get an ethernet switch. Plug the ethernet switch into the router, and then plug your two computers into the ethernet switch.
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zecand zecand is offline
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05-Jul-2010, 05:26 PM #3
there is no way you can make two computers workif you will be splitting the cat5 because you will still be using the same cord. the end of the cord that you are splitting is connected to the router that only can give a single IP address which will be just given to a computer. every port of the router gives off an IP address to the particular computer that it will be connected to.
JohnWill's Avatar
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05-Jul-2010, 07:29 PM #4
Quote:
Originally Posted by zecand View Post
there is no way you can make two computers workif you will be splitting the cat5 because you will still be using the same cord. the end of the cord that you are splitting is connected to the router that only can give a single IP address which will be just given to a computer. every port of the router gives off an IP address to the particular computer that it will be connected to.
This is incorrect. You can indeed use that one wire and an Ethernet switch on the other end to run as many computers as you like.
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