USB to TTL serial cable problem.

by **korovkin** » Tue Dec 25, 2012 2:12 pm

Good day.
Recently I purchased the USB to TTL serial cable (http://www.adafruit.com/products/954). After unpacking it I plugged to USB HUB not connecting it to a board. The USB HUB gone down immediately. When I unplugged the cable, USB HUB restored.
Is it a problem in a cable or is it me who connects it wrong?
Thank you very much in advance,

by **adafruit** » Tue Dec 25, 2012 8:21 pm

is it a powered hub?

by **korovkin** » Wed Dec 26, 2012 2:21 am

Yes, the HUB is powered. The power supply provides up to 800mA.

by **adafruit** » Wed Dec 26, 2012 1:31 pm

thats odd, do you have the TTL cable ends plugged into anything else

by **korovkin** » Thu Dec 27, 2012 12:01 am

First I tried the TTL pins disconnected, then I tried TX, RX, GND pins connected. Result is the same. I have bad hunch that the chip just short circuits USP bower pins.

by **adafruit_support_rick** » Thu Dec 27, 2012 10:28 am

Sorry about that. Please contact support@adafruit.com for a replacement. Please refer to this thread, and include your original order number.

by **korovkin** » Thu Dec 27, 2012 1:41 pm

Thank you.

USB to TTL serial cable problem.

USB to TTL serial cable problem.

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