Question on adding a second terminal to a PC running SCO Xenix

[William Y.N. Zhai]

Does anyone know how to connect a second terminal to a AT286 running
SCO Xenix System V?
I have a SCO Xenix System V installed in a AT286 machine and want to connect
a HP-2624B terminal as a second tty device.  I connected it to the COM2 port
with a serial cable and made /dev/tty2a active.  However it didn't work.
Does anyone know how?  Any advice or suggestion will be appreciated.
Thanks in advance.

Bill