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What You say it's completely true but not in RS232 of the PC! The PC serial port it's a "light" version of the true RS232 standard portand don't have the power supply! (I have some serial cellular cables that get power from usb port or game port because the serial port haven't!). However I...

excuse me but did U know that ALL signal converter circuits are powered? Even if we don't see it, the cellular data cable it's powered by the phone! It take power from the phone connector to supply the little signal converter. So I don't understand how it is possible to make this working if U...

Hi, my question is: It is possible to make the zyxel communicate with PC using the cable used to unlock LG video phones? This cable it's serial and have 2 transistors mounted on RX and TX and all the circuit it's powered by a 9V battery. Thank you