Full duplex: Difference between revisions
imported>Howard C. Berkowitz (New page: A '''full duplex''' (often written '''full-duplex''') is a communication system or medium that physically permits simultaneous transmission and reception between endpoints. To understand t...) |
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A '''full duplex''' (often written '''full-duplex''') is a communication system or medium that physically permits simultaneous transmission and reception between endpoints. To understand that the ability to have physical two-way communications but not a usable two-way flow, consider the example of two people, talking face-to-face through the medium of air. While they ''can'' both talk at the same time, the conversation will not be intelligible. | A '''full duplex''' (often written '''full-duplex''') is a communication system or medium that physically permits simultaneous transmission and reception between endpoints. To understand that the ability to have physical two-way communications but not a usable two-way flow, consider the example of two people, talking face-to-face through the medium of air. While they ''can'' both talk at the same time, the conversation will not be intelligible. | ||
==Two-way simultaneous== | |||
Two-way simultaneous (TWS) systems allow simultaneous transmission and reception among the endpoints. It requires a full duplex medium. This is a plausible logical means of communications for such things as computers keeping their files synchronized, with updates flowing in both directions. | |||
==Two-way alternating== | ==Two-way alternating== | ||
Two-way alternating (TWA) systems require either a full duplex medium, or a pair of unidirectional communications. This term refers to the logical level of communications, such as the need to talk, and then to listen, to have an intelligible face-to-face conversation | Two-way alternating (TWA) systems require either a full duplex medium, a [[half duplex]] medium, or a pair of unidirectional communications. This term refers to the logical level of communications, such as the need to talk, and then to listen, to have an intelligible face-to-face conversation. | ||
Latest revision as of 17:47, 8 January 2009
A full duplex (often written full-duplex) is a communication system or medium that physically permits simultaneous transmission and reception between endpoints. To understand that the ability to have physical two-way communications but not a usable two-way flow, consider the example of two people, talking face-to-face through the medium of air. While they can both talk at the same time, the conversation will not be intelligible.
Two-way simultaneous
Two-way simultaneous (TWS) systems allow simultaneous transmission and reception among the endpoints. It requires a full duplex medium. This is a plausible logical means of communications for such things as computers keeping their files synchronized, with updates flowing in both directions.
Two-way alternating
Two-way alternating (TWA) systems require either a full duplex medium, a half duplex medium, or a pair of unidirectional communications. This term refers to the logical level of communications, such as the need to talk, and then to listen, to have an intelligible face-to-face conversation.