System for switching from working units to stand-by units

Details System for switching from working units to stand-by units System for switching from working units to stand-by units

1989-04-06

1991-05-07

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

371 81, H04J 0314

Patent

active

050142615

ABSTRACT:
A switching system for switching from a unit or units in a working state to a unit or units in a stand-by state in which the units in a stand-by state are provided as either individual stand-by units or as common stand-by units. An individual stand-by unit or a switching unit can be accommodated at a position at which it forms a pair with a working unit, and a working unit or units which are to be connected to a switching unit upon the occurrence of failure of the working unit or units are automatically connected to a common stand-by unit.

REFERENCES:
patent: 3364467 (1968-01-01), Haibt et al.
patent: 4160127 (1979-07-01), Slana et al.
patent: 4245342 (1982-01-01), Entenman
patent: 4412323 (1983-10-01), Abbott et al.
patent: 4633246 (1986-12-01), Jones et al.
patent: 4648088 (1987-03-01), Cagle et al.
patent: 4658396 (1987-04-01), Barden

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