A communications arrangement where multiple devices share a common transmission channel, though only one may transmit at a time. See multipoint.

A network topology in which multiple devices, each with a unique address, are connected to a common set of data communication lines.

A communications configuration in which multiple devices share a common transmission facility (or multipoint line), although generally only one may transmit at a time. Usually used with some kind of polling mechanism to address each connected terminal with a unique address code.

A communications arrangement in which multiple devices share a common transmission channel, although only one may transmit at a time.