Types of Twisted Pair Networking Cable | |
TP = twisted pair U = unshielded F = foil shielding S = braided shielding |
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UTP: Unshielded Twisted Pair Four pairs of two insulated copper wires twisted around each other to reduce crosstalk or electromagnetic induction between the pairs. No metallic foil or braid is present. Most often used in data networks for short and medium connection lengths, and increasingly used in Closed-Circuit Television (CCTV) video applications. |
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F/UTP: Foiled Twisted Pair or Foil Applied Over Unshielded Twisted Pair Four pairs of two insulated copper wires twisted around each other to reduce crosstalk or electromagnetic induction between the pairs with an overall metallic foil wrapped around the pairs. |
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STP: Shielded Twisted Pair / ScTP: Screened Twisted Pair Four pairs of two insulated copper wires twisted around each other to reduce crosstalk or electromagnetic induction between the pairs. An overall metallic braid is applied to the four pairs of wires. |
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SSTP or SFTP: Screened Shielded Twisted Pair or Screened Foiled Twisted Pair Four pairs of two insulated copper wires twisted around each other to reduce crosstalk or electromagnetic induction between the pairs. A metallic foil is applied to each pair of wires, with an overall metallic foil and/or braid wrapped around the four pairs. Virtually eliminates electrical noise from within the cable (crosstalk between cable pairs) and from outside the cable and between cables (EMI, radiation, electromagnetic induction, and RFI). |
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