A crossover cable has opposite pin assignments on each end of the cable. In a standard Ethernet cable (straight-through cable), the pin configurations are the same on both ends. However, a crossover cable is specifically designed to swap the transmit and receive pairs, allowing two devices to communicate directly without the need for a network switch or hub. In a crossover cable, the transmit (TX) pins on one end are connected to the receive (RX) pins on the other end, and vice versa. This configuration is commonly used when connecting two similar devices directly, such as connecting two computers, two switches, or two routers without an intermediary network device. Keep in mind that in modern networking equipment, auto-MDIX (Automatic Medium-Dependent Interface Crossover) is a feature that automatically detects the type of cable (straight-through or crossover) and configures the connection accordingly. This means that, in many cases, you can use a standard Ethernet cable for dir...