| bottom TREO 600 Pin |
Name | Direction | Description |
|---|---|---|---|
| 1 | RXD | -?- | Receive Data |
| 2 | TXD | -?- | O/P Transmit Data/Power |
| 3 | No Connect | -?- | GPIO to internal battery pack |
| 4 | HS2* | -?- | Serial Cradle Detect |
| 5 | HS1* | -?- | HotSync Interrupt |
| 6 | GND | -?- | Ground |
| 7 | USB D- | -?- | I/O USB Data Negative |
| 8 | USB D+ | -?- | I/O USB Data Positive |
| 9 | DQ | -?- | I/O 1-wire communication pin |
| 10 | PACK+ | -?- | a1 Battery Positive Terminal |
| 11 | PACK+ | -?- | a1 Battery Positive Terminal |
| 12 | GND | -?- | Ground |
| 13 | GND | -?- | Ground |
| 14 | VDOCK | -?- | Cradle Power (charging) |
| 15 | VDOCK | -?- | Cradle Power (charging) |
* indicates active-low signals
USB cable:
| USB Pin | PDA Pin | Description |
| 1 | 14 | VBus |
| 2 | 7 | D+ |
| 3 | 8 | D- |
| 4 | 6 | GND |
