Method for establishing connections between subscriber stations

Details Method for establishing connections between subscriber stations Method for establishing connections between subscriber stations

1981-07-21

1984-05-29

Schreyer, Stafford D.

Telegraphy

Systems

Automatic

178 175, 178 26R, H04L 1106, H04L 1120

Patent

active

044516975

ABSTRACT:
A method is disclosed for establishing connections from subscriber stations or transmission lines connected to a data exchange system to signal converters. The data exchange system receives information concerning the free state or busy state of the signal converters. For this purpose, it is provided that, having forwarded the signals with which it has been previously supplied for signal conversion, the signal converter emits a special free signal which may differ from an accompanying signal indicating the end of signal transmission and which changes the busy state signal ("1") indicative of the busy state of the signal converter directly into a free state signal ("0").

REFERENCES:
patent: 3963867 (1976-06-01), Duuren et al.

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