Palm Serial Port Pinout

        III  V
     --------------
      1 YEL     DTR
      2         +3.3v
      3 BRN GRN RD
      4 BLU WHT RTS
      5 BLK YEL TD
      6 GRN     CTS
      7         GPI 1 (->3.3v for hotsync)
      8         GPI 2 (20Kohm ->3.3v for modem)
     10 RED BLU GND