12 pin Siemens Lumberg cellphone special connector at the mobile phone | Pin
| Name
| Dir
| Description |
1 | GND | - | Ground |
2 | SELF-SERVICE | in/out | Recognition/control battery charger |
3 | LOAD | in | Charging voltage |
4 | BATTERY | out | Battery (S25 only) |
5 | DATA OUT (TX) | out | Data sent |
6 | DATA IN (RX) | in | Data received |
7 | Z_CLK | - | Clock line for accessory bus. Use as DTR In data operation |
8 | Z_DATA | - | Data line for accessory bus. Use as CTS in data operation |
9 | MICG | - | Ground for microphone |
10 | MIC | in | Microphone input |
11 | AUD | out | Loudspeaker |
12 | AUDG | - | Ground for external speaker |
Source:www.pinouts.ru
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