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9 pin D-SUB male connector layout
9 pin D-SUB male connector

Siemens and other cell phones cable scheme

RX voltage must be limited to 3V (by stabilitron or by using 3 Volt MAX3232) when using cable for SMS-ing. Mobile phone will loose network signal during the data exchange without this.

According to 6 reports in our database (6 positive and 0 negative) the Siemens C25, S25, C35, M35, S35, A35, A36, A40, C45, S45, ME45, SL42, SL45, S6, S8, C10, S10, S11, C30, S30, S40 data-cable, flash cable pinout should be correct.

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