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2026-07-20 09:23:17 -04:00
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+---
+tags:
+  - Cheetsheet
+---
+
+
+Cable Types
+-----------
+
+| Cable Type | Shielding | Description | Use Case |
+| --- | --- | --- | --- |
+| **UTP** | None | Twisted wires to reduce EMI and crosstalk | Most common and basic type of cable |
+| **STP** | Foil wrapping or copper braid jacket | Twisted wires wrapped with shielding material | Reduces EMI and crosstalk more than UTP |
+| **FTP** | Foil wrapping around each twisted pair | Each pair of wires wrapped in foil for added protection | Provides better shielding than UTP |
+| **S/FTP** | Combines FTP and STP shielding | Twisted wires wrapped in foil, then wrapped in a shielding material | Provides highest level of protection against EMI and crosstalk |
+
+Wiring
+------
+
+### TIA/EIA 568A Wiring
+
+| PIN | Color |
+| --- | --- |
+| 1   | White and Green |
+| 2   | Green |
+| 3   | White and Orange |
+| 4   | Blue |
+| 5   | White and Blue |
+| 6   | Orange |
+| 7   | White and Brown |
+| 8   | Brown |
+
+### TIA/EIA 568B Wiring
+
+| PIN | Color |
+| --- | --- |
+| 1   | White and Orange |
+| 2   | Orange |
+| 3   | White and Green |
+| 4   | Blue |
+| 5   | White and Blue |
+| 6   | Green |
+| 7   | White and Brown |
+| 8   | Brown |
+
+Categories
+----------
+
+| CATEGORY | MHz | Speed |
+| --- | --- | --- |
+| CAT 3 UTP | 16MHz | 10Mps up to 100m |
+| CAT 4 UTP | 20MHz | 16Mps up to 100m |
+| CAT 5 UTP | 100MHz | 100Mbps up to 100m |
+| CAT 5e UTP | 100MHz | 1000Mbps up to 100m |
+| CAT 5e STP | 100MHz | 1000Mbps up to 100m |
+| CAT 6 UTP | 250MHz | 10Gbps over to 33-55m |
+| CAT 6a STP | 500MHz | 10Gbps over 100m |
+| CAT 7 STP | 600MHz | 10Gbps over 100m |
+| CAT 7a STP | 1000MHz | 10Gbps over 100m |
+| CAT 8 STP | 2000MHz | 25/40Gps up to 30m |