Plantronics, Inc.

Haidong Wang

Thomas G Criswell

ShouBo Feng

A male plug for coupling with a female jack is arranged to prevent short circuiting during the insertion and removal process. The female jack includes first, second, third, and fourth contact terminals. The first and second contact terminals are separated by a first-to-second jack terminal separation distance, and the second and third contact terminals are separated by a second-to-third jack terminal separation distance. The male plug includes a first ring contact segment arranged to contact the third contact terminal of the female jack. The first ring contact segment has a length less than the first-to-second jack terminal separation distance and the second-to-third jack terminal separation distance. The male plug includes a second ring contact segment arranged to contact the second contact terminal of the female jack. The second ring contact segment has a length less than the first-to-second jack terminal separation distance and the second-to-third jack terminal separation distance.

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Suzhou, China

Haidong Wang