DigiWARE	Release	Notes 93000154AA
				      for
			     Digi EPC/X, C/X, Xem,
		       Avanstar, Xr and	Xe Async Drivers

			 SCO UnixWare 2.0x, 2.1x and 7
			Software Package P/N 75000154AH

				EPC/X, C/X, Xem,
		      Avanstar and Xr Device Driver 7.0.5
			      EPC/X  FEP/OS 2.4.3
				Xem FEP/OS 2.4.3
				Xr FEP/OS 2.4.3
				C/X FEP/OS 3.6.0

			  Digi Xe Device Driver	7.0.5
			      Digi Xe FEP/OS 7.08

				   MPI V3.2.4

			Diskette #1 P/N	40001157X (3.5")
			Diskette #2 P/N	40001381X (3.5")
			   Image File  P/N 40001802X
			   Source File P/N 81000019P

				August 26, 1999

	  This DigiWare	software package includes device  drivers  for
	  Digi	Xe, Digi Digi Xr, Avanstar, EPC/X, C/X and Xem product
	  families.  This package also contains	Digi's MenuPort	Inter-
	  face	(MPI),	Port Configuration Utility (PCU) and Digi Port
	  Authority (DPA).

	   MPI V3.2.4:

	  1. Enhancements

	  None

	  2. Bug Fixes

	  Updated firmware to correct performance issues on high speed
	  lines.

	  3. Known Limitations

	  Under	UnixWare 7, PCU	is no longer an	option for configuring
	  Digi async ports.  You are now able to use "scoadmin serial"
	  or "scoadmin printer"	for port configuration.	 You  need  to
	  have	a  minimum  OS	level  of 7.0.1	with ptf7053b or above
	  which	is available  at  ftp://ftp.sco.com/SLS/ptf7053b.   If
	  you  are  at	version	7 of the operating system, you need to
	  upgrade	  to	     7.0.1	   by	      applying
	  ftp://ftp.sco.com/Supplements/unixware7/update701.	As  of
	  Unixware 7.1.0, there	are no OS patch	requirements.

	  If you MUST use PCU, you can run it from  the	 command  line
	  using	 the  option -o.  If you use PCU, you MUST NOT use the



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	  serial manager as system conflicts can occur.

	  If multiple Xr(PCI) cards  are  being	 configured,  and  the
	  cards	support	different numbers of ports, make sure the card
	  placement on the PCI bus match the order in which  they  are
	  configured in	MPI.

	  Micro	channel	and dscreen are	no longer supported under this
	  release.

	  When the machine is configured for T1	 modem	banks,	system
	  defaults  in	the /etc/snmpd.comm file only allows the local
	  machine to do	writes.	 If you	want  Quick  Manager  (or  any
	  other	machine) to be able to write to	the local machine, you
	  must add an entry in	the  /etc/netmgt/snmpd.comm  file  for
	  write	access,	and use	the new	community name when adding the
	  new  computer	 in  Quick  Manager.   See  the	 man  page  on
	  snmpd.comm for more details.

	  The T1 modem bank line card can be  configured  by  entering
	  the  command	"t1util	-d <device_name>" where	device_name is
	  the name of the utility channel "/dev/term/t1mbx31" and x is
	  the  module  ID used when configuring	the modem bank through
	  MPI.

	  UnixWare 2.x has a bug (fixed	by  ptf	 3181,	available  for
	  download   on	  the	SCO   Web   site)  that	 prevents  the
	  download/DPA/PCU drivers (epc1 and pcx1) from	 unloading  in
	  certain  cases.  If epc1 and/or pcx1 cannot be unloaded, the
	  user must reboot to affect driver changes made via MPI.

	  If Digi loadable drivers are removed but  not	 re-installed,
	  the  user is advised to relink the kernel prior to rebooting
	  the UNIX system.  The	utilities used to remove a driver from
	  the  system  do  not	remove driver references from the file
	  "/etc/conf/cf.d/sdevice".  Relinking the kernel causes  this
	  file to be rebuilt.

	  The time to perform various stages in	the  MPI  install  and
	  change process can vary widely depending on when the idbuild
	  for a	driver is done.	 Since the idbuild for a driver	cannot
	  be done while	the driver is loaded, MPI will do the build at
	  one of three different times:

	  Driver not loaded - build is done during configuration

	  Driver was changed while it was  loaded  and	is  now	 being
	  reloaded - build is done during load

	  Driver was changed while it was loaded and the system	is now
	  being	 rebooted  -  the  build  is done during the load that
	  occurs after the boot

	  MPI must be run after	pkgadd to install new products.

	  Before the MPI package can be	removed	from the  system,  the



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	  remove installed products option must	be invoked through MPI
	  to remove all	configured Digi	drivers.

	  At this point, the driver supports PCI initialization	 using
	  the built in PCI BIOS	routines.  If the hardware or software
	  does not allow use of	the PCI	BIOS routines, the board  ini-
	  tialization will fail.

	  Executing pkginfo -l on the MPI package will display a  mes-
	  sage	of partially installed pathnames.  This	message	can be
	  ignored.

	  The ditty printer option does	not guarantee complete	writes
	  of data to slow printer devices unless the tcdrain mechanism
	  is used.

	  For maximum performance of throughput, all of	the concentra-
	  tors should be evenly	divided	between	the 2 lines.

	  4. Manual Errata

	  Micro	Channel	 and  dscreen  are  no	longer	part  of  this
	  release.   Any information in	the MPI	manual that references
	  either of these  features  should  be	 ignored.   All	 other
	  information applies to this release.