|2||L0p||lane 0 positive|
|3||L0n||lane 0 negative|
|5||PWR||power (charger or battery)|
|6||L1n||lane 1 negative|
|7||L1p||lane 1 positive|
Apple Lightning interface is adaptive - the controller chip dynamically assign pins function according to plugged device.
The Apple Lightning connector plug can be inserted with either side facing up (the processor inside the plug detects the plug's orientation and routes the electrical signals to the correct pins).Two differential pair lanes (L0p/n and L1p/n) may swap in IC of device connector (lanes don't swap if accessory identification chip connect to ID0 pin).
Apple included an authentication chip in the Lightning cables which was already explored and reproduced by some chinese manufacturers.