This is the pin assignment of the so called POP port of the Nokia 6230i mobile. Pin 1 is the one with a small distance to the other pins.
Pin Name Function
----- ------------ --------------------------------------------------------------------------
1 Vin 5V Input
2 Gnd Ground
3 ACI Auto-Connect-Ignition (automatic recognition of connected accessories)
4 V Out +5V Output (accessories supply voltage)
5 USB PwrDet USB Power Detection (only used for USB connection)
6 F-Bus Rx Serial data bus (receive)
7 F-Bus Tx Serial data bus (transmit)
8 Gnd Ground
9 X Mic N audio input -
10 X Mic P audio input +
11 HS Ear L N (Headset) left audio output -
12 HS Ear L P (Headset) left audio output +
13 HS Ear R N (Headset) right audio output -
14 HS Ear R P (Headset) right audio output +