Interface system common to V24/V28 and V35

Details Interface system common to V24/V28 and V35 Interface system common to V24/V28 and V35

1996-03-15

1998-04-14

Hoff, Marc S.

Coded data generation or conversion

Digital code to digital code converters

370 29, H04M 700

Patent

active

057397775

ABSTRACT:
There is provided an interface in which an external connection connector can be used in common to signal conversion circuits when V24/V28 and V35 interfaces recommended by CCITT are used in common, so that the number of parts can be reduced and the sized can be reduced. A V24/V28 interface signal is utilized for part of the V35 interface so that part of the interface conversion circuit may be used in common, and either one of a V24/V28 exclusive conversion unit and a V35 exclusive conversion unit is selected by means of a switch. A connector in the form of an RS232C is used. A V35 exclusive signal is assigned to a pin which is not used when the interface converter is used as the V24/V28 interface but the connector is connected to a V35 connector through a conversion cable when the interface converter is used as the V35 interface.

REFERENCES:
patent: 4525830 (1985-07-01), Cohen et al.
patent: 5124976 (1992-06-01), Lemaistre et al.
patent: 5237561 (1993-08-01), Pyhalammi
patent: 5285199 (1994-02-01), Pocek

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