V.23

(protocol, standard)An ITU-T modem protocol whichallowed half-duplex (unidirectional) data transmission at1200 bits per second with a 75 bps back channel and fall back to 600/75 bps. This was the main standard used forBritish Telecom's Prestel service.

V.23

An ITU standard (1964) for asynchronous and synchronous 0-600 and 0-1,200 bps half-duplex analog modems for use on dial-up lines. It has an optional split-speed transmission method with a reverse channel of 0-75 bps (1,200/75, 75/1,200). It uses FSK modulation.

单词	v.23
释义	V.23 V.23 (protocol, standard)An ITU-T modem protocol whichallowed half-duplex (unidirectional) data transmission at1200 bits per second with a 75 bps back channel and fall back to 600/75 bps. This was the main standard used forBritish Telecom's Prestel service. V.23 An ITU standard (1964) for asynchronous and synchronous 0-600 and 0-1,200 bps half-duplex analog modems for use on dial-up lines. It has an optional split-speed transmission method with a reverse channel of 0-75 bps (1,200/75, 75/1,200). It uses FSK modulation.
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