| Pin | Signal | Description |
| 1,6,10,21 | GND | shorted in cable |
| 2,3,4,5 | VA2 | shorted in cable |
| 7 | USB Vcc | |
| 8 | UDC+ | |
| 9 | UDC- | |
| 11 | AUDIO_BT_AD | |
| 12 | -RxD1 | |
| 13 | -TxD1 | |
| 14 | CTS1 | |
| 15 | RTS1 | |
| 16 | DTR1 | |
| 17 | DSR1 | |
| 18 | DCD1 | |
| 19 | CRADLE_3V | |
| 20 | CRADLE_ID | |
| 22 | CRADLE_AUDIO_INT | |
| 23 | MICIN2 | |
| 24 | SPK_L | |
| 25 | SPK_R | |
| 26 | AGND |

