Method of testing connecting and/or switching devices and/or lin

Details Method of testing connecting and/or switching devices and/or lin Method of testing connecting and/or switching devices and/or lin

1989-12-22

1992-07-28

Beausoliel, Robert W.

Excavating

371 376, G06F 1108

Patent

active

051346184

ABSTRACT:
A method of testing connecting and/or switching devices, particularly of a space-division multiplex switching matrix (K), in which one or more of a plurality of input lines (D.sub.i, C.sub.j) is connectable with one or more of a plurality of output lines (Y.sub.k), and which is carried out to check the formation of a check word is described. A first check word PB1 is derived from the signals on the input lines (D.sub.i, C.sub.j), and also, according to the same rules of formation, a second check word PB2 is derived from the signals on the output lines (Y.sub.k), both derived continuously. The two check words are compared to each other. In case of a disagreement, an error indication is provided.

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patent: 4596015 (1986-06-01), Clements et al.
patent: 4710935 (1987-12-01), Kim
patent: 4768193 (1988-08-01), Takemae

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