How to Test Crossover Cablesby Bryan Roberts
A crossover cable is a special type of Ethernet cable designed for communication between two devices rather than a device and a modem. In the event that you need to test the signal of a crossover cable, you can do so easily with the help of an Ethernet cable tester.
Turn your cable tester on. Connect one end of your crossover cable to one of the Ethernet ports on top of the tester.
Connect the other end of your crossover cable to the other port on top of the cable tester.
Press the "Test" button on your tester, and a signal is sent from one end of the cable to the other. If the signal is sent intact, you will receive a "success" message.