I am trying to find an RS232 buffer IC. I can only find the level shifters from TTL to RS232 but not one that is able to receive RS232 and spit RS232 as well. Pretty much a repeater.
I am trying to MUX 2 serial ports (all 9 pins) with the least parts. One of the serial ports has TTL outputs going thru an RS232 inverter, and the other is a normal RS232 serial port. Both are going to single RS232 port.
I did that, I used a Sipex SP213EHCA to conver the RS232 to TTL and then link together the two TTL signals and spit them out through another Sipex. :lol:
But I thought that there could be a better solution than having to shift the level twice to gain acces to an "enable" line for the RS232 lines.