Straight through LAN cables are the most common, and the pinout is the same if they are Cat5e, Cat6, or Cat 7. The pinout is always the same for Ethernet cables.įiber Optics Training Straight Through LAN Cable Pinout It doesn’t matter if you make up some Cat5e, Cat6, and Cat7 cables. The following are the pinouts for the RJ45 connectors so you can check which one you have or make up your own. ![]() Most modern communications equipment can auto-sense which type you are using, but some still need the correct cable pinout. Of course, the numbering doesn´t change, but please be aware of the colors you are using (in my case I use the A configuration).Ethernet LAN cables can come in two types – Crossover or Straight through. The Pin-Out using the cables from the "ethernet" wiring should change depending on the color standard you use (see image below and check your cables). If the other pairs are nor required for your project, you an discard them at the connector. When you are connecting a 4x2 cable in a Profinet connector, you must only use 2 pair, the Orange/White-Orange and the Green/White-Green. The two wiring standards are used to create a cross-over cable (T-568A on one end, and T-568B on the other end), or a straight-through cable (T-568B or T-568A on both ends). ![]() The other two colors (blueandbrown) may be used for a second Ethernet line or for phone connections. Standard Profinet cable, as any 100 MBps Ethernet cable, is described as a 2x2 cable, with 4 wires Your 4-pair (4x2) Ethernet cable is designed for 1GBps Ethernet.Īlthough there are 4 pairs of wires, 10BaseT/100BaseT Ethernet uses only 2 pairs: Orangeand Green.
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