Pin | USB Signal | UART signal | Hands-free signal |
1 | GND | ||
2 | USB D+ | RxD | RxD |
3 | USB D-/ | TxD | TxD |
4 | USB Vbus | n/a | n/a |
5 | Power IN | ||
6 | Reserved | ||
7 | Synchronisation clock | RTS | Tx Voice (analog) |
8 | |||
9 | n/a | CTS | Rx Voice (analog) |
10 | Analog GND | ||
11 | GND | ||
12 | RF cable detect | ||
13 | RF signal | ||
14,15,16 | GND | ||
17 | Charger + | ||
18 | Charger - | ||
19 | Bluetooth ANT |
For sharp 902 pins 1,5,10 should be shorted in cable?