Self-terminating XLR connector device

Details Self-terminating XLR connector device Self-terminating XLR connector device

1994-02-08

1996-01-16

Schwartz, Larry I.

Electrical connectors

Having circuit interrupting provision effected by mating or...

439488, H01R 13703

Patent

active

054842980

ABSTRACT:
Disclosed is an improved XLR connector which automatically terminates at least two of the matable connecting terminals of the XLR connector when the XLR connector is not attached to another XLR connector. The XLR connector includes a spring-biased switching member which opens and closes depending on whether the XLR connector is attached to another XLR connector. According to a first embodiment of the invention, an internal resistor is provided in the XLR connector which has a resistance that matches the impedance of the signal lines coupled to the XLR connector. According to a second embodiment, two additional terminals are provided on the XLR connector which are coupled together through the switching member. Thus, the state of the XLR connector may be detected by detecting the potential difference between the two additional terminals.

REFERENCES:
patent: 4118690 (1978-10-01), Paynton
patent: 4179173 (1979-12-01), Rise, III
patent: 5030122 (1991-07-01), Birch et al.
patent: 5352128 (1994-10-01), Bricaud
Markertek Video Supply Catalog, p. 4 (undated).

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