asynchronous transmission

[ā′siŋ·krə·nəs ‚tranz′mish·ən] (communications) Data transmission in which each character contains its own start and stop pulses and there is no control over the time between characters.

asynchronous transmission

The transmission of data in which each character is a self-contained unit with its own start and stop bits. Intervals between characters may be uneven. It is the common method of transmission between a computer and an analog modem, although the modem may switch to synchronous transmission to communicate with the other modem. Also called "start/stop transmission." Contrast with synchronous transmission.