Xon/Xoff

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Xon/Xoff is a protocol for synchronizing data transmission. The receiver sends the Xoff signal to stop data transmission from the sender. The receiver can then use the Xon signal to request the continuation of data transmission.

[edit] Common Uses

Xon and Xoff are used as control characters on Unix and Linux terminals used to signal when a terminal cannot receive any more data. The keys [ctrl] + q and [ctrl] + s are typically mapped to the Xon and Xoff control characters.

[edit] References

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