Can someone please explain why terminating resistors are needed in a Communication network?
For example, consider RS-485 network with one Master board and Two Slave boards connected to each other with 3 pins. Pins A and B are differential signal. And there is a ground pin.
Why would it be necessary to attach terminating resistor to both sides instead of just one side.
Please assume I have some basic electronics knowledge but no transmission Line Theory.
Thank you!
For example, consider RS-485 network with one Master board and Two Slave boards connected to each other with 3 pins. Pins A and B are differential signal. And there is a ground pin.
Why would it be necessary to attach terminating resistor to both sides instead of just one side.
Please assume I have some basic electronics knowledge but no transmission Line Theory.
Thank you!