In digital I/O handshaking, how is part transfer facilitated between two stations?

In digital I/O handshaking, the process involves the coordination of data transfer between two stations, typically referred to as Station A and Station B. The correct answer indicates that the output of Station A is connected to the input of Station B, which is essential for facilitating part transfer.

This configuration allows Station A to send data signals to Station B. When Station A's output transmits a high or low signal, Station B receives this information through its input. This flow of data is critical in handshaking protocols that ensure both stations are ready to send and receive data, enabling synchronous communication. The method of connecting output to input effectively creates a clear pathway for data to flow from the sender to the receiver.

In digital communication systems, proper alignment of outputs and inputs is crucial. If, for instance, the connection were set up in a way that both stations had their outputs connected, no meaningful data exchange would occur, since neither station could send nor receive correct signals reliably. Similarly, connections that do not align outputs from one station with the corresponding inputs of another would fail to establish the necessary data transfer. Thus, the correct configuration is vital for the successful implementation of handshaking protocols in digital I/O setups.