Linking two Xenix Systems

[Robert R. Kessler]

I would like to link two 386-based Xenix systems (both running 2.3.2),
one a MCA bus and the other an AT bus.  Ideally I would like something
like NFS, so I can open files on the remote system directly from my
applications.  What alternatives do I have?  Does NFS really work
between two Xenix systems?  What software/hardware must be in place to
permit this?  Is there anything else that would provide similar
functionality? 

Thanks.
B.