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  1. What is the reason for T568A and T568B termination?

    Jan 13, 2017 · A signal carrying pair cannot shield another signal carrying pair. That's not how EM works. Especially since they are a TX and RX pair, which are by definition uncorrelated …

  2. Any problems mixing T568B Patch cords with T568A Premise wiring?

    Oct 13, 2015 · A lot of the patch cords I currently have are T568B, and I'd like to reuse some. Would that cause any problems? For example a run might be. Computer<->Patch cord …

  3. Pins #6 and #8 of my CAT6 ethernet cable are broken. Should I …

    Jan 13, 2022 · I wired up a ~40m long CAT6 cable following T568B pinout. According to my tester, pins #6 and #8 are not functional. I have re-wired both ends several times to make sure …

  4. Do physical wire properties impact the choice between T568A

    Jan 23, 2015 · Trying figure out the key differences between T568A and T568B wiring, if any exist. I found claims in a thread that T568A has advantages over T568B due to the fact that …

  5. ethernet - What classifies as crossover cable? - Network …

    Is it just for Gigabit Ethernet? Do all types of ethernet cable classify as crossover as long as at least the transmit and receive pairs are swapped, and following that, would a cable with only …

  6. Connecting two PCs together via External Ethernet cards (T568A or …

    Both T568A and T568B are straight-through if you use the same standard on both ends. It is only a crossover if you use T568A on one end, and T568B on the other end.

  7. layer1 - What do the positive and negative (+/-) transmit and …

    Mar 19, 2019 · Each and every (-) line is basically like a ground line for that signal (it's not exactly ground but you can think of it like that). It carries the negative voltage for the signal just like the …

  8. How can 1000BASE-T transmit & receive on the same pins?

    Jun 27, 2025 · How can 1000 - Base T (Gigabit ethernet twisted copper pairs) technology transmit over the Rx pins & receive over the Tx pins? It's baseband technology (hence the name), …

  9. ethernet - Why do I need a crossover cable to connect devices of …

    Aug 28, 2016 · I know that a crossover cable should be used to directly connect devices of the same type and patch cable is used to connect devices of different types. But I never …

  10. Patch panel problem - Network Engineering Stack Exchange

    I now changed it to go trough the patch pane, but i just can't get a few of them working. We use the T568B configuration. But after checking the utp cable at the camera i noticed that they …