Tests on Y-cables

Serveait Representative-Shridhar P serveaitsystems at gmail.com
Tue Jan 6 11:23:58 UTC 2015

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On Tue, 06 Jan 2015 14:09:43 +0530, DING Changchang  
<archang at canaan-creative.com> wrote:

> Hi, Werner
> I have tested two Y-cables Xiangfu bought:
> http://downloads.qi-hardware.com/people/xiangfu/anelok/y-cable/Y-cable.JPG
> http://downloads.qi-hardware.com/people/xiangfu/anelok/y-cable/Y-cable-with-chip.JPG
> They both have the ID pin connected to GND in USB Micro B port as the  
> OTG host.
> The first one should meet all the needs:
> Works fine when connecting usb keyboard/mouse/disk on the OTG slave (the  
> standard USB A female)
> The power branch does deliver power to both slave and host, only failing  
> in charging a Nexus5. But it can charge a Nexus4 and power up a  
> >RaspberryPi.
> One problem is that the power branch has a Micro B female and is not  
> long enough. But we can connect it with a Micro B male to Standard A  
> male >cable which is very easy to get:
> http://downloads.qi-hardware.com/people/xiangfu/anelok/y-cable/Y-cable-full.JPG
> The second one has a chip inside.It cannot work properly when all three  
> ends are in use.
> Another cable Xiangfu ordered should arrive in a few days. I will test  
> it later.
> CC


Regards Shridhar Patil

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