Patent
1977-04-04
1980-02-19
Stewart, David L.
179 15BF, 179 15BD, 179 18EA, H04J 308
Patent
active
041896246
ABSTRACT:
A digital time division multiplex (TDM) telecommunication network is described wherein subscriber terminals are connected to a closed TDM loop which forms branch loops appropriately routed to remote subscriber groups or network sections. The branch loops may be bypassed by a connecting device in the event of a fault.
REFERENCES:
patent: Re28811 (1976-05-01), Pierce
patent: 3925621 (1975-12-01), Collins
patent: 4002843 (1977-01-01), Rackman
patent: 4002847 (1977-01-01), Dail
patent: 4032893 (1977-06-01), Moran
patent: 4042780 (1977-08-01), Wolters
patent: 4048446 (1977-09-01), Hafner
Siemens Aktiengesellschaft
Stewart David L.
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