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BEWARE FILE FOR DN64 SOFTWARE
Revision: 2
Date: 29 Feb 80
Copyright (c) 1980, 1979
Digital Equipment Corporation, Maynard, Mass.
This software is furnished under a license and may be used and copied
only in accordance with the terms of such license and with the
inclusion of the above copyright notice. This software or any other
copies thereof may not be provided or otherwise made available to any
other person. No title to and ownership of the software is hereby
transferred.
The information in this software is subject to change without notice
and should not be construed as a commitment by DIGITAL EQUIPMENT
CORPORATION.
DIGITAL assumes no responsibility for the use or reliability of its
software on equipment which is not supplied by DIGITAL.
BEWARE FILE FOR DN64 WITH TOPS20 RELEASE 4.0 Page 2
TABLE OF CONTENTS
TABLE OF CONTENTS
1. PURPOSE
2. LIST OF FILES INCLUDED IN DN64 RELEASE FOR 4.0
3. INSTALLATION INSTRUCTIONS
4. WARNINGS OF KNOWN DEFICIENCIES
5. DEPENDENCIES
BEWARE FILE FOR DN64 WITH TOPS20 RELEASE 4.0 Page 3
PURPOSE
1.0 PURPOSE
The IBM 2780/3780/HASP Emulation and Termination software is an
enhanced successor to the DN64 software.
This software includes support for GALAXY and TOPS-20 release 4.0.
The operator interface has now been integrated with the other
spoolers, providing for more uniform operating procedures.
BEWARE FILE FOR DN64 WITH TOPS20 RELEASE 4.0 Page 4
LIST OF FILES INCLUDED IN DN64 RELEASE FOR TOPS-20 RELEASE 4.0
2.0 LIST OF FILES INCLUDED IN DN64 RELEASE FOR TOPS-20 RELEASE 4.0
The files included in the DN64 release for TOPS20 release 4.0 are
listed and described in the DN64 installation manual.
The files consist of two types:
1. Spooler and Support files
2. Front End files
The Spooler and Support files reside in the DECSystem-20 and run under
the TOPS20 4.0 operating system.
The Front End files are assembled to produce the DN64 Communication
Software. This software resides in the Front End.
BEWARE FILE FOR DN64 WITH TOPS20 RELEASE 4.0 Page 5
INSTALLATION INSTRUCTIONS
3.0 INSTALLATION INSTRUCTIONS
The installation instructions and procedures are described in
DECSystem-10 (TOPS-20) DN65 Installation Manual. Consult the manual
for a complete description of the process.
The manual may be ordered by asking for:
IBM Emulation/Termination
DN65:2780/3780/HASP
AA-5095B-TM
Current users of the DN64 should note that the installation
instructions have changed substantially since the last release. The
D60SPL program has been replaced by integrated support in LPTSPL and
CDRIVE, plus a new spooler called IBMSPL.
BEWARE FILE FOR DN64 WITH TOPS20 RELEASE 4.0 Page 6
WARNINGS OF KNOWN DEFICIENCIES
4.0 WARNINGS OF KNOWN DEFICIENCIES
This list of deficiencies is divided into three sections:
Termination, Emulation and General. The Termination section is
applicable to sites that run the DN64 software in termination mode.
The Emulation section applies sites running in emulation mode. The
General section applies to both, begin deficiencies that reside under
either termination or emulation.
4.1 Termination
o If a termination station is running, a file is being output
and the line drops the state of the lineprinter goes to
OFFLINE. The line printer will never shutdown with an error
and the job will never complete. The job should be aborted
and the printer shutdown before attempting to restart the
station.
o If a RJE session has been completed and the TOPS20 operator
shuts the IBM RJE node down (OPR SHUTDOWN NODE), the line is
not disabled. This means that any node running on a dialup
line will not hang up. Anyone running RJE communications
over long-distance lines not wanting to pay for superflous
telephone connect time should have an operator manually hang
up the phone.
4.2 Emulation
o The job running IBMSPL must be connected to a PS: directory.
It does make any difference what directory, as long as it is
on PS:. If IBMSPL is not connected to PS:, any files that
are read from a IBM host to be printed on the lineprinter
will not be queued.
o If the IBM host is connected to the DN64 front end by a
hardwired line, a session should be completed by sending a
signoff message in a batch submission before shutting the
node down. If this is not done it may not be possible to
change protocols (between any two of HASP, 2780, and 3780)
and restart a node on that particular line.
BEWARE FILE FOR DN64 WITH TOPS20 RELEASE 4.0 Page 7
WARNINGS OF KNOWN DEFICIENCIES
4.3 General
o It is possible to create two nodes (DEFINE NODE command to
OPR) that have the same port and line identification.
Unfortunately it is also possible to issue START NODE
commands to both. This will create at least one node that
will do very strange things. Normally one of the two nodes
will generate enough fatal errors that it will shut down, but
this is not garaunteed. So it is suggested that whoever
defines the node and port/line correlation check it for
consistency before allowing anyone to start a node.
BEWARE FILE FOR DN64 WITH TOPS20 RELEASE 4.0 Page 8
DEPENDENCIES
5.0 DEPENDENCIES
The DN64 software is dependent on all of the files in the 4.0 release
package and the files indicated in the DN64 Installation Manual.
In addition, all the hardware to support TOPS-20 and the DN64 Front
End is required to be present and functioning.
[End of DN64.BWR]