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Siemens C25/S25

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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 out Data sent (S25 only)
6 DATA IN in Data received (S25 only)
7 Z_CLK Recognition/control accessories
8 Z_DATA Recognition/control accessories
9 MICG Ground for microphone
10 MIC in Microphone input
11 AUD out Loudspeaker
12 AUDG Ground for external speaker

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