full pinout for Siemens A52, A55, A56, A60, A65, AL21, AX75, AX72, C55, C56, C60, C62, C65, C70, C75, CF62, CF75, CFX65, CL75, CT56, CX65, CX70, CX75, CXT65, CXT70, CXV65, CXV70, M55, M65, MC60, M75, MT55, ME75, S55, S56, S57, S65, S75, SL5C, SL55, SL56, SL65, SK65, SF65, SP65, 1168, 2218, SX1. also for Xelibri-1, Xelibri-2, Xelibri-3, Xelibri-4, Xelibri-5, Xelibri-6, Xelibri-7, Xelibri-8
| Mobile phone interface pin | Siemens x55 and other old | Siemens x65, x75, SX1 | Description |
|---|---|---|---|
| 1 | Vin | Power Charging | Vbus in in SX1, SL65, SF65 and others x65, x75 |
| 2 | Gnd | GND | usb GND in x65, x75, SX1 USB cable |
| 3 | Tx | TX / USB D+ | usb D+ in x65, x75, SX1 |
| 4 | Rx | RX / USB D- | usb D- in x65, x75, SX1 |
| 5 | CTS | CTS | Data Line For Accessory. 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 Accessory or serial cable |
| 7 | DCD | DCD | Clockline For Accessory |
| 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.
correct
incorrect