Remote digital carrier alarm and terminal by-pass system

Details Remote digital carrier alarm and terminal by-pass system Remote digital carrier alarm and terminal by-pass system

1985-07-08

1988-07-19

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 15, 370 86, H04J 110, H04J 300

Patent

active

047590092

ABSTRACT:
A T1 digital carrier system having a master terminal and four serially coupled remote terminals. Each remote terminal has a by-pass switch for automatically by-passing that remote terminal should a service threatening condition exist therein, thereby maintaining service to all remaining remote terminals. In addition, major and minor alarm information (indicating service requiring conditions) is transmitted by each remote terminal during signaling frames in the T1 serial bit stream.

REFERENCES:
patent: 4046964 (1977-09-01), Daugherty et al.
patent: 4320508 (1982-03-01), Takezoe
patent: 4393492 (1983-07-01), Bishop
patent: 4435704 (1984-03-01), Hashimoto

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