Telecommunications. Designating or relating to a process or apparatus for simultaneously transmitting two or more signals or programmes (to be later…

Telecommunications. Originally: designating a system of telegraphy enabling four messages to be sent over a wire at the same time, two in each…

Telegraphy. Characterized by the passing of two messages simultaneously in the same direction.

Telegraphy. Designating a system of telegraphy enabling six messages to be sent over a wire at the same time, three in each direction. Cf. duplex…

Telegraphy, Telephony, and Computing. Designating a device, (part of a) system, or circuit in which signals can be sent along a line in only one…

Of two ways: applied by Mr. Preece to a mode of working, which converts a single telegraphic wire into two ways or ducts for signalling messages…

Telegraphy. Of six ways: applied to a mode of multiplex telegraphy, whereby six messages can be transmitted simultaneously.

Applied to a mode of multiplex telegraphy by which four messages can be transmitted along a wire simultaneously. Obsolete.

Telegraphy. Permitting or involving the transmission of three signals simultaneously. Obsolete.

Designating a system of electric telegraphy in which eight simultaneous messages can be sent along the same wire.

Telegraphy. ‘Designating a system by which two or more messages can be sent or received simultaneously without interference’ (Webster 1911).

Esp. of a cable: that is in the form of a quad (quad, n.6); made as a quad.

Incorporated into a multiplex signal or system; subjected to the action of a multiplexer.

= multiplexed, adj.