Have you gone to “/system ports” and setup the a new remote port? This will allow you to remotely access something attached to the serial port. Note, the serial port has to not be in use for system management to use the remote port feature.
Yes, I’ve tried this. Even I have made special-login user to talk with serial device directly. But this does not work for me. I need to make set of two devices RouterBoard + RS232 device and these set will send RS232 device provided data (fetch tool) to remote server even when RB is behind NAT or with dynamic address. That is because I need to read data from serial-terminal …
Well, I’ve found this ugly solution which works for me, but it may not for you.
It is based on /port remote-access which allows to log serial console …
just for your knowledge, i wanna do a power loss warning. Like something that will notice by the serial port when the power is loss.
But I think, i will have to do some serial controller to send any information (can be just a bit) to the mikrotik serial, mikrotik reads it them do some other thing to notice the NOC.