Connect to embedded system.

Hi all.

I have QNX-Box and I have to connect work station to QNX-box via RS-232
null-modem cable.
I can’t understand qnet network.

stty 115200 < /dev/ser2
io-net -d fd fd=/dev/ser2 -p qnet host=p9

stty 115200 < /dev/ser2
io-net -d fd fd=/dev/ser2 -p qnet host=artem

Not working!