System for line-conducted digital data telecommunications

Multiplex communications – Wide area network – Packet switching

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370 67, 370 80, 370 859, 359163, H04J 302

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active

055725279

ABSTRACT:
A system for line-conducted digital telecommunication between a switching exchange of a telecommunication network and a subscriber connected to this network is provided. The digital transmission path passes to a transfer point accessible for the subscriber, to which the subscriber may connect his devices by free choice up to the full use of the maximum available transfer rate. The activation of the particular transfer rates are controllable by the switching exchange.

REFERENCES:
patent: 4046964 (1977-09-01), Daugherty et al.
patent: 4768188 (1988-08-01), Barnhart et al.
patent: 4970721 (1990-11-01), Aczel et al.
patent: 5307347 (1994-04-01), Duault et al.
"Opal-Projekt in Stuttgart mit optischen Verstarkern" Ntz, vol. 45 (1992), issue 11, pp. 902 and 903.

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