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From: "Martin Riddle" <martin_...@verizon.net>
Newsgroups: alt.binaries.schematics.electronic,sci.electronics.design,sci.electronics.cad,sci.electronics.basics
Subject: Re: USB Mechanical Switch?
Date: Wed, 19 Sep 2012 20:49:48 -0400
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"Jim Thompson" <To-Email-Use-The-Envelope-I...@On-My-Web-Site.com> wrote 
in message news:23mk5858d3g1c30rnpf5e490tk7heu8a1i@4ax.com...
> On Wed, 19 Sep 2012 17:30:47 -0500, Don Kuenz <garb...@crcomp.net>
> wrote:
>
>>Jim Thompson <To-Email-Use-The-Envelope-I...@on-my-web-site.com> 
>>wrote:
>>
>>> Unplugging the USB connector seems to work.  So why wouldn't a 
>>> switch?
>>
>>The outer two pins of a USB connector carry VCC and ground while the
>>inner two pins carry a differential pair. Put a switch on either line
>>of the differential pair.
>
> I ordered this...
>
>       http://tinyurl.com/cvvheq2
>
> I'll just leave one output open.
>
>                                        ...Jim Thompson

Here's one on steroids!
<http://www.thinkgeek.com/product/e2d2/>

Cheers