Siemens M35 Series Service Manual page 61

Name IN/OUT
Pin
1 GND
2 SB I/O
3 POWER I
4 FBatt+ O
5 TX O
6 RX I
7 ZUB_CLK I/O
8 ZUB_DATA I/O
9 GND_MIC
10 HF_MIC I
11 AUDO O
12 GNDA
Notes
Charger coding and
charger control.
Charging Current
Power supply for the
accessories.
Serial interface
Serial interface
Clock line for
accessory bus
Use as DTC In data
operation
Data line for
accessory bus.
Use as CTS in data
operation
For external
microphone
External microphone
Trigger for external
loudspeaker
For external
loudspeaker