USB 2.0 manual mechanical Switch

AdvarP · 2006-07-10T13:20:41+00:00

Hi there, not sure if this is the right NG, I have a Q in regards to computer electronics :-)I am trying to put together a manual USB 2.0 switch, one output to four inputs (or viceversa). I use:One Female A USB connector PCBFour Female B USB connectors PCBOne four-way three contact rotary switch make-before-break (from Jaycar El'nics)To test, I have wired just one output and the input to the switch. However when I try to connect the USB printer through it, I get 'Unrecognized device' on the PC and the printer does not work . WHY ?? This is purely a four-way contact - well actually the USB grounds are tied together and only +5V, Data A and Data B are switched.So I wonder, why does it not work ? It is a dumb manual switch. Another switch I bought that uses semicon switching and a touch button is claimed to be USB 2 but the PC always says it is USB1.1. How does it realise it is USB 1.1, and how it knows that my connection is not good ? I have wired straight thru and also tried to reverse the data connections, to no avail.Any ideas pls ? Do I have to connect any capacitors etc somewhere in my manual switch ? BTW the manual switches you can buy are ugly and huge, but basically the same; A rotary switch and many USB connectors. So what do i do wrong ?Many thanks

Jul 10, 2006 20 Replies

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David L. Jones 20 years ago

6 watts - crikey!

Dave :)

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USB 2.0 manual mechanical Switch

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