software for nullmodem cable

[amiga4001]

I have a nul modem cable between my amiga4000 with csppc and trying to boot os4 and an amiga1200.
How do I proceed to see what is happening on the amiga4000 side?
Do I also need miamidx to get a connection between these two?
And which program is most usable for this (easiest).
No fancy thing just something that starts and shows me the output from the 4000.

[amiga4001]

Ok term it is but how do I set it up for receiving data through the null modem cable?
Is it only selecting serial.device in the serial settings?
Or are more inputs rewuired to receive data?

[amiga4001]

Indeed,that is the idea.