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X.20bis

The X.20bis interface is designed for start-stop operation with transmission speeds corresponding to X.1.

The X.20bis interface is used in circuit-switched data networks and in leased lines. The connection setup and teardown corresponds to the X.20 recommendation and is carried out via the interface lines according to V.24. The electrical properties of the interface are specified in X.28.

The suffix "bis" used for various ITU interfaces means second generation. This designation is an older German term for "second".

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Englisch: X.20bis
Updated at: 25.03.2013
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Translations: DE