which type of cable has opposite pin assignments on each end of the cable

 A type of cable with opposite pin assignments on each end is commonly known as a crossover cable. In a standard network cable, such as an Ethernet cable, the pin assignments on both ends are the same. However, in a crossover cable, specific wires are crossed or swapped to allow for direct communication between two devices of the same type, such as two computers or two network switches.

In a crossover cable:

  • The transmit (TX) pins on one end are connected to the receive (RX) pins on the other end.
  • The receive (RX) pins on one end are connected to the transmit (TX) pins on the other end.

This configuration enables two devices to communicate directly without the need for an intermediary device, like a network hub or switch. Crossover cables are often used in scenarios like connecting two computers, connecting two switches, or connecting a computer to another device without an intervening networking device.

It's worth noting that many modern networking devices, such as switches, support Auto MDI-X (Automatic Medium-Dependent Interface Crossover). This feature allows devices to automatically detect the type of cable (straight-through or crossover) and adjust their configuration accordingly, reducing the need for manual use of crossover cables in many situations

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