| Mobile phone interface pin | Description | 
| 1 | Ext AUD MIC IN / JTAG TMS Use | 
| 2 | JTAG TRST Use | 
| 3 | GND / JTAG TMK Use | 
| 4 | Auxiliary Audio Out / JTAG TDI | 
| 5 | RS232_DSR | 
| 6 | RS232_RXD | 
| 7 | RS232_TXD | 
| 8 | RS232_DTR | 
| 9 | DATA ID | 
| 10 | I06 / JTAG TDO Use | 
| 11 | IOPN11 ? EXT. Power 6V / 200 mA | 
| 12 | ACCID ? Accessory ID (22 KOm) | 
| 13 | ACCIN | 
| 14 | GND | 

