A crossover cable is still used today to connect two computers for direct communication or multiplayer gaming. It can also be used to connect two Ethernet devices. Network cards can replace the need for a crossover cable. They can be purchased or made, but signal pins must be connected differently than straight-through cables.
A crossover cable might seem like a thing of the past, but it’s still in use today in various capacities. It is a cable used to connect two computers together for the purpose of direct communication. Another name for this type of cable is a null modem.
A computer user may want to test the behavior of one computer by connecting it to another or connect two computers to avoid having to purchase a hub. Computers can also be linked so that two people can compete against each other in a multiplayer match. In each of these cases, a crossover cable can be used to make the connection.
For the first two instances, the computer user will want to ensure that the two computers are in the same workgroup. If they’re not, they won’t be able to “see” each other. Once they are members of the same workgroup, the data transfer or monitoring can begin. This is sometimes a requirement for multiplayer games as well, so it’s best for the user to check the protocols for both the game and the cable to be sure.
Many network cards have the functions inherent in a built-in crossover cable. In this case, the user does not need to connect the computers directly as long as both are on the same network, mostly using the same modem or router. The network card does the job that the cable would normally do.
Computer users can purchase crossover cable at most computer stores and online computer equipment suppliers, although they can also be made from commonly available materials. A number of DIY websites explain how they’re done. People who want to make their own should remember that signal pins receiving on one side are connected to pins transmitting on the other. This is different from straight-through cable, where the pins are connected any way you like.
A crossover cable can also be used to connect two Ethernet devices. These devices can be individual computers or networks. The principle is the same, but the connection speed and scheme are different, as is the purpose of the connection. In all cases, however, the functions of sending and receiving data are crossed over at both ends of the cable, allowing for complete data transfer between computers, routers, and even networks.
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