Pin | Signal | Description |
---|---|---|
1 | CAR_MIC_IN | Car microphone input |
2 | GND / SENSE | Ground / chassis |
3 | CAR_AUDIO_R | Car audio right output |
4 | CAR_AUDIO_L | Car audio left output |
5 | ANALOG GND | |
6 | RS232_DCD | |
7 | RS232_CTS | |
8 | RS232_TXD | |
9 | RS232_RTS | |
10 | RS232_RXD | |
11 | RS232_DTR | |
12 | IN_CALL | |
13 | USB_VDD | USB voltage detection |
14 | UDC+ | USB data positive voltage |
15 | UDC- | USB data ground/negative |
16,17,18 | GND | |
19 | CAR_ON# | |
20,21,22 | V_ADP | +5 volts DC to charge/power the unit |