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

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

H - Electricity

04

L

340/75, 344/1.3

H04L 1/00 (2006.01) H04Q 1/24 (2006.01) H04Q 11/04 (2006.01)

Patent

CA 2006367

P 38 43 564.0 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 (Di, Cj) is connectable with one or more of a plurality of output lines (Yk), and which is carried out to check the formation of a check word is described. A first check word PB1 and also, according to the same rules of formation from the signals on the output lines (Yk), an additional check word PB2 are derived continuously from the signals on the input lines (Di, Cj). The two check words are compared to each other. In case of a disagreement, an error indication is provided. (Figure 3) H. J. Matt et al 10-1-1

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