This is the pinout for the 10 pin header on the board. Thanks to Ralph Babel.

           ­­­­ ­­­­ 
   CN4 :  |5 4 3 2 1|	
          |- 9 8 7 6|  if you use a ribbon cable, it will be correct almost
           ŻŻŻŻŻŻŻŻŻ   automatically.
 1 = DCD    6 = DSR
 2 = RxD    7 = RTS
 3 = TxD    8 = CTS
 4 = DTR    9 = RI
 5 = GND