Saturday, May 22, 2010

Modes of data flow

In Simplex mode, the communication is unidirectional, as on a one-way street. Only one of the two devices on a link can transmit, other one can only receive.

In Half-Duplex mode, each station can both transmit and receive, but not at the same time. When one device is sending other can only receive and vice versa.

In Full-Duplex mode (Duplex), both stations can transmit and receive simultaneously.

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