Siemens SL55 - IO Connector with ESD Protection; IO Connector - New Slim Lumberg

Customer Care
V 1.0 Page 41of 52 ICM MP CCQ GRM
SL55
Company Confidential © Copyright Siemens AG
06/03
7.5 IO Connector with ESD protection
7.5.1 IO Connector – New Slim Lumberg
P
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Name IN/OUT Notes
1 POWER I/O POWER is needed for charging batteries and for
supplying the accessories. If accessories are supplied by
mobile, talk-time and standby-time from telephone are
reduced. Therefore it has to be respected on an as low as
possible power consumption in the accessories.
2 GND
3 TX O Serial interface
4 RX I Serial interface
5 DATA/CTS I/O Data-line for accessory-bus
Use as CTS in data operation.
6 RTS I/O Use as RTS in data-operation.
7 CLK/DCD I/O Clock-line for accessory-bus.
Use as DTC in data-operation.
8 AUDIO_L Analog O driving ext. left speaker
With mono-headset Audio_L and Audio_R
differential mode
9
10 AUDIO_R Analog O driving ext. right speaker With mono-headset
Audio_L and Audio_R differential Signal
11 GND_MIC Analog I for ext. microphone
12 MICP2 Analog I External microphone