Full duplex refers to the simultaneous transmission of data in two directions. Full duplex data transfer can occur on a signal carrier. This type of data transfer involves a bidirectional line.
Full duplex can clearly be seen in a local area network that supports this technology. In the said environment, a specific work station is sending data through the line while another work station is receiving data. Signals are being given by the work station that is sending data. The work station that is receiving data also gives a confirmation when it has finished obtaining the data.
A landline telephone is another example of a technology incorporating full duplex. While currently using a telephone, an individual can hear the person at the other end of the line and at the same time speak to that person.
Half duplex is a type of data transfer that is closely related to full duplex. Similar to full duplex, half duplex involves the transmission of data in both directions. However, half duplex does not support simultaneous transfer of data. This means that in a half duplex system, when a device starts receiving data, it needs to wait for the transmitter to finish sending the data. Only then can the device can reply to the transmitter.
The use of full duplex transfer provides a number of benefits. In a network that uses full duplex technology, the maximum amount of bandwidth can be used in both directions. This is because the option to send and the option to receive are properly separated. In addition, the retransmission of frames does not occur in full duplex systems. This lessens the time consumed by work stations in transferring data.