Hi everyone,
I need to work on an analog switch which will switch the RS232 (+/- 10VDC) signal from different RS232 serial communication.
I tried ADG333 with MAX232IDR, but it will draw too much current when RS232 is in Mark (-8.9VDC), then it will pull it to -0.89VDC.
Does everyone how to make analog switch for RS232 signals?
Thanks for help.
Use series resistor from your connector (~10k) and a zener diode (~6.2V). Anode to ground, cathode to the gate of the 2N7000.
Klaus
Use series resistor from your connector (~10k) and a zener diode (~6.2V). Anode to ground, cathode to the gate of the 2N7000.
Klaus