2nd generation iPod
2nd generation iPod jack connector - 6 pin 4 pole 1/8
inch plug + 2 rings iPod (at cable side)
| Pin | Signal | Color |
|---|---|---|
| 1 | Audio left | black |
| 2 | Audio right | white |
| 3 | Audio ground (GND) | red |
| 4 | Serial RxD | green |
| 5 | +3.3V Power to Remote | blue |
| 6 | Digital ground (GND) | yellow |
3rd generation iPod
3rd generation iPod jack connector - 8 pin 4 pole plug +
4 pin (at cable side)
| Pin | Signal | Color |
|---|---|---|
| 1 | Audio left | black |
| 2 | Audio right | white |
| 3 | Audio ground (GND) | red |
| 4 | Sleeve - Video Out on iPod Photo and 5th generation iPod | |
| 5 | Serial RxD | green |
| 6 | Serial TxD | |
| 7 | Digital ground (GND) | yellow |
| 8 | +3.3V Power to Remote | blue |
Notes
- Serial signals are not directly compatible with RS232 levels, you have to use a RS232-TTL converter such as the MAX3232E chip.
- On the 3rd generation iPod the remote control data is sent via a serial Apple Accessory Protocol.