Question
Download Solution PDFRS 232 communication is
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFConcept:
The data flow between the two devices can be in simplex, half-duplex, and full-duplex modes.
Simplex: In Simplex, communication is unidirectional. Only one of the devices sends the data and the other one only receives the data.
Example: A CPU sends data while a monitor only receives data.
Half-Duplex: In half-duplex both the stations can transmit as well as receive but not at the same time. When one device is sending others can only receive and vice-versa
Example: A walkie-talkie.
Full Duplex: In Full-duplex mode, both stations can transmit and receive at the same time.
Example: Mobile phones
Application:
- RS-232 is a bi-directional (Full duplex) point to point communication link.
- Two independent channels are established for two-way (Full-Duplex) communication.
- This can be better understood with the following diagram:
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