 16 pin PALM special connector at the PDA | | Pin | Signal | Description |
| 1 | GND | Signal- and charge ground (connected to pin 7) |
| 2 | USB_D+ | Positive USB data signal |
| 3 | USB_D- | Negative USB data signal |
| 4 | VBUS | VBUS signal |
| 5 | HOTSYNC | HotSync IRQ - +3.3V for button push |
| 6 | N/C | Not Connected |
| 7 | GND | Signal- and charge GND (connected to pin 1) |
| 8 | ID | Identification for peripherials |
| 9 | Vout | +3.2V supply output, 100mA max. |
| 10 | RxD | RS-232 RxD signal (input), GPS T |
| 11 | TxD | RS-232 TxD signal (output), GPS R |
| 12 | DETECT | peripherial detect - tied to ground by peripherials |
| 13 | CTS | RS-232 CTS signal (input) |
| 14 | RTS | RS-232 RTS signal (output) |
| 15 | DTR | RS-232 DTR signal (output) |
| 16 | CHARGE | +5V charge supply input, 500-700mA |
pins 1,7,8,12 should be shorted in cable? | |
