Non-blocking expandable switching matrix for a telecommunication

Details Non-blocking expandable switching matrix for a telecommunication Non-blocking expandable switching matrix for a telecommunication

1980-03-19

1982-10-19

Olms, Douglas W.

Multiplex communications

Wide area network

Packet switching

370 58, 3701101, H04Q 1104, H04J 312

Patent

active

043553842

ABSTRACT:
A digital switching matrix for use in telephone systems which provides non-blocking operation and is capable of non-blocking expansion without reconfiguration of the existing system. A provision for providing message tones such as dial tone, business line, etc., without requiring a map search of the switching matrix, and an integral testing provision are also described.

REFERENCES:
patent: 3597548 (1971-08-01), Drinnan et al.
patent: 4025725 (1977-05-01), Euler
patent: 4245339 (1981-01-01), Agricola et al.

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