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Harald Welte laforge at gnumonks.orgHi Alexander, On Thu, Dec 16, 2010 at 11:06:49PM +0100, Alexander Huemer wrote: > i tried to ascii draw the connector from the back (soldering) side. the > rounded half of the connector on the upper side. The pins i found described > elsewhere on the internet are already marked. As you can read from the Schematics page 8 (I/O connector), Pin 9 is the Charger/USB Power. As you have already marked, 6+8 are UART and 10+12 is ground. So you have to connect the ground of your power supply to 10 and/or 12, and the +5V to pin number 9. I've added the pin numbers to your ASCII-ART: > -------------------------- > ( ) > ( ) | > ( 1 2 3 4 5 6 7 8 9 0 1012 ) > +-------------------------+ | > | | | | | | | | / > | | | | | | | | / > +-------------------------+/ > ^ ^ ^ ^ > | | | | > | | | +--- GND > | | +----- GND > | +----------- RX (PC -> Phone) > +--------------- TX (Phone -> PC) -- - Harald Welte <laforge at gnumonks.org> http://laforge.gnumonks.org/ ============================================================================ "Privacy in residential applications is a desirable marketing option." (ETSI EN 300 175-7 Ch. A6)