System for detecting and locating defective crosspoint switches

Details System for detecting and locating defective crosspoint switches System for detecting and locating defective crosspoint switches

1988-09-23

1989-08-22

Schreyer, Stafford D.

Telephonic communications

Diagnostic testing, malfunction indication, or electrical...

Of centralized switching system

H04M 326

Patent

active

048603341

ABSTRACT:
A method and apparatus for detecting and locating defective crosspoint switches in a path consisting of a plurality of conducting segments connected by switch points is disclosed. The method and apparatus utilize the change in capacitance of the path which occurs when the switches are operated in a predetermined order.

REFERENCES:
patent: 4401861 (1983-08-01), Braun et al.

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