Circuit arrangement for the transmission of data signals between

Details Circuit arrangement for the transmission of data signals between Circuit arrangement for the transmission of data signals between

1988-03-30

1988-11-22

Schreyer, Stafford D.

Telegraphy

Systems

178 3, 370 41, H04Q 300

Patent

active

047867639

ABSTRACT:
A circuit for the transmission of data signals between subscriber terminals operating with different data transmission procedures is described. Data signals are transmitted between a subscriber terminal operating with a first transmission procedure and a subscriber terminal operating with a second transmission procedure, attainable only through manually switched connections. A manual switchboard having at least one job memory unit and a control unit is provided. Jobs for connections to be manually switched, respectively containing at least a job number, as well as selection data, serving for the establishment of connections and data signals to be transmitted, are written into the job memory unit. These jobs are output in the sequence in which they were input, such that the control unit maintains, for each job, only the selection data required for the setting-up of a connection and the associated data signals for a conversion and related forwarding. The described invention is applicable to the transmission of data signals between Teletex-subscriber terminals and teleprinter-subscriber terminals, attainable only over manually switched connections.

REFERENCES:
patent: 4323728 (1982-04-01), Bergmann et al.
Article entitled, "The Structure of the Siemens EDS System", by Eduard Mair, Bernhard and Rolf Schubert (1977), No. 7, pp. 295-301.

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