Loopback plugs check input/output functions by connecting transmission pins to receive pins to see if the port is physically working properly.

Question

Quizplus · Accepted Answer

Loopback plugs are used to test the functionality of communication ports by redirecting the output signals back into the system as input. This process helps in verifying whether the port is capable of sending and receiving data correctly, thus checking its physical operation.

Loopback Plugs Check Input/output Functions by Connecting Transmission Pins to Receive