Контакт Имя контакта Описание
 1 Vin Charger input
 2 GND Charger ground
 3 ACI Accessory Control Interface (short with pin 2 for handsfree recognition)
 4 V Out / VDD+ Connected to pin 3 in DKU-2 usb data cable / For Hansfree (ex. HS-23): microchip power supply
 5 USB Vbus Also act as USB power detection? Should be connected to USB pin 1 in usb data cable. (USB Vcc +5V)
 6 FBus Rx/USB D+ USB exists only in some models*. Should be connected to USB pin 3 in usb data cable. (USB DATA+)
 7 FBus Tx/USB D- USB exists only in some models*. Should be connected to USB pin 2 in usb data cable. (USB DATA-)
 8 GND Data GND (USB GND)
 9 X Mic- Audio in – Ext. Mic input negativ
 10 X Mic+ Audio in – Ext. Mic input positiv
 11 HS Ear L- Audio out – Ext. Audio out – left, negativ
 12 HS Ear L+ Audio out – Ext. Audio out – left, positiv
 13 HS Ear R- Audio out – Ext. audio out – right, negativ
 14 HS Ear R+ Audio out – Ext. audio out – right, positiv. Pins 10-14 may be used for antenna connection.
  GND shield GND in cavities

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