Siemens A52, A55, A56, A60, C55, C56, C60, C65, CF62, CT56, M55, MC60, MT55, S55, S56, S57, S65, SL5C, SL55, SL56, 2218, SX1 cell phones

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Mobile phone interface pin	Siemens x55 and other old	Siemens x65, x75, SX1	Description
1	Vin	Power Charging	Vbus in in x65, SX1
2	Gnd	GND	usb GND in x65, SX1 USB cable
3	Tx	TX / USB D+	usb D+ in x65, SX1
4	Rx	RX / USB D-	usb D- in x65, SX1
5	CTS	CTS	Data Line For Accesory. Used as a cable detect in Siemens x65-x75 models. Short to pin 2 GND to force cable detection.
6	RTS	RTS	Data Line For Accesory or serial cable
7	DCD	DCD	Clockline For Accesory
8	Audio P	AUDIO L
9	-	AUDIO GND
10	Audio N	AUDIO R
11	GND Mic	GND (EXT MIC.)
12	EPP	EPP 1 (EXT MIC.)

Pins 5,6,7 should be shorted by 10KOhm resistors to pin 2 in x65, SX1 USB cable.

Pinouts.ru > �� Panasonic, Samsung � �.�. > �� Siemens A52, A55, A56, A60, C55, C56, C60, C65, CF62, CT56, M55, MC60, MT55, S55, S56, S57, S65, SL5C, SL55, SL56, 2218, SX1 cell phones �� 12 pin Siemens Slim Lumberg cell phone special	�� :	��
��(�) � �� : GSM pinouts, www.portakalelektronik.com	21 ��
Last updated at Sun Dec 10 2006 (�� )	�� ?