Ethernet cable shield
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Posted by Comeonpilgrim on November 23, 2004, 5:02 pm
Please log in for more thread options here can't point me to a website or explain to me what the ferrite shield does on cables. I've got them on my phone line to the DSL router and on the crossover cable. I've got a few on video cables and such as well. I'd just like to learn in which cases they're most useful and why. TIA _Pilgrim | ||||||||||||||||
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Posted by James Knott on November 23, 2004, 7:01 pm
Please log in for more thread options It's not a shield it's a choke. When placed on a cable, the ferrite creates a high impedance for common mode signals. Differential mode signals, such as the desired data, carried by the pairs, are not affected. It's a method of keeping the device from causing interference. | ||||||||||||||||
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> here can't point me to a website or explain to me what the ferrite shield
> does on cables. I've got them on my phone line to the DSL router and on
> the crossover cable. I've got a few on video cables and such as well. I'd
> just like to learn in which cases they're most useful and why.