simplex printer

<communications>

A term applied by Western Union Telegraph Company to teletypewriters that are not part of a multiplex system. They usually provided for alternate transmission in both directions. If working simplex or half-duplex, what was keyed in at the keyboard would be typed out at the printing portion. If working full-duplex, sending would be blind as the printing portion was being used only for reception.

Last updated: 2000-04-02

Nearby terms:

simplex methodsimplex printerSIMPL/ISimplified Multicast Routing Protocol

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