Cross-bar switch system with redundancy

Details Cross-bar switch system with redundancy Cross-bar switch system with redundancy

2006-01-10

2006-01-10

Chin, Wellington (Department: 2664)

Multiplex communications

Pathfinding or routing

Through a circuit switch

C370S217000, C370S218000, C370S219000, C370S220000, C370S221000, C370S225000, C370S227000, C370S228000, C370S244000, C370S380000

Reexamination Certificate

active

06985482

ABSTRACT:
A crossbar switch system with redundancy has N+1 cross-bar switches. A first cross-bar switch has first outputs of each of a plurality of nodes applied to N input terminals thereof, an (N+1)th cross-bar switch has Nth outputs of each of the nodes applied to N input terminals thereof, and second to Nth (Ith) cross-bar switches each have first to Nth selection circuits, which are provided at respective input terminals thereof, to each of which are input mutually adjacent (I−1)th and Ith outputs among outputs of each of the nodes. Each (Jth) node has N selection switches, which are provided at input terminals thereof, to each of which are input Jth outputs of two mutually adjacent cross-bar switches among the first to (N+1)th cross-bar switches. In response to a selection control signal output from a failure processing circuit that executes crossbar switch failure processing, each of the selection circuits selects and outputs one of its two inputs.

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