>Cat 5 cable is 4 twisted pairs.  It us usually NOT
>shielded, although I have seen some special order=20
>cables that were.

Normal CAT5 cable is called UTP for "unshielded twisted pair" but it is =
also possible to get STP for "shielded twisted pair" I have never had to =
use STP, but I imagine if doing wiring in a noisy environment like a =
machine shop it may be necessary.

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