Communications: electrical – Continuously variable indicating – With meter reading
Patent
1987-05-04
1990-02-06
Yusko, Donald J.
Communications: electrical
Continuously variable indicating
With meter reading
34082516, 340827, 370 16, 370 8515, 371 112, H04Q 300, H04J 314
Patent
active
048991422
ABSTRACT:
A ring network system in which a plurality of line concentrators each having terminal stations connected thereto through respective branch lines are interconnected through at least one ring transmission lines. Each line concentrator includes configuration control switches capable of disconnecting from the ring transmission line all the branch lines placed under control of the line concentrator while holding the ring transmission line in the state to allow communication. The branch line(s) disconnected from the ring transmission line form(s) a local ring through cooperation with an internal transmission line. The line concentrator detected abnormality of communication or the line concentrator to be set to the rest state can undergo internal diagnosis operation or continue to be in the rest state without disturbing the communication among other line concentrators. At activation of the line concentrators, any of them may be activated arbitrarily and independently from each other by again connecting the branch lines to the ring transmission lines.
REFERENCES:
patent: 3732543 (1973-05-01), Rocher et al.
patent: 4510493 (1985-04-01), Bux et al.
patent: 4538264 (1985-08-01), Bahr et al.
patent: 4596982 (1986-06-01), Bahr et al.
patent: 4623884 (1986-11-01), Ihara et al.
patent: 4709365 (1987-11-01), Beale et al.
patent: 4710915 (1987-12-01), Kitahara
patent: 4763315 (1988-08-01), Nakayashiki et al.
patent: 4777330 (1988-10-01), Nakayashiki et al.
Bekki Yoshinori
Harakawa Takeshi
Kashio Jiro
Nakayashiki Susumu
Yamaga Mitsuhiro
Hitachi , Ltd.
Holloway III Edwin C.
Yusko Donald J.
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