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AE-5564A-TC

May 1977

4 pages

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0.2MB

Document:	10.62.00 7708 RT-11 2780
Order Number:	AE-5564A-TC
Revision:
Pages:	4
Original Filename:	http://bitsavers.org/pdf/dec/spd/10.62.00_7708_RT-11_2780.pdf

OCR Text

momoomo

Software Product Description
PRODUCT NAME:

RT-11 (CTS-300)/LSI-11 2780, Version 2

SPD 10.62.0

SECTION A: RT-11 (CTS-300)/LSI-11 2780 SPECIFIC INFORMATION
DESCRIPTION:
RT-11 (CTS-300)/LSI-11 2780 provides emulation of
an IBM 2780 remote batch terminal. It runs under the
RT -11 Foreground/Background monitor on a suitably
equipped RT -11 (version 2C or later) or CTS-300/DIS
(version 1 or later) system. General characteristics of
DIGITAL's PDP-11 based 2780 products are given in
Section B of this Software Product Description.
Any disk device supported by RT -11 or CTS-300 for
the LSI-11 can be used as a source of transmission
files. Any disk or line printer supported by RT-11 or
CTS-300 for the LSI-11 can be used to receive files.
The LA 180 can be used only in "off-line" mode to
print files temporarily stored on disk.
RT -11 (CTS-300)/LSI-11 2780 will run at modem
speeds up to 2400 bits per second, in either Foreground or Background. No other tasks may run concurrently with the 2780 emulator.

MINIMUM HARDWARE REQUIRED:
Any valid LSI-11 based RT -11 or CTS-300 Foreground/Background system configuration which includes:
• at least 16K words (32K bytes) of memory for 2780
operation in the background
• at least 24K words (48K bytes) of memory for 2780
operation in the foreground
• a disk device
• DUV11 Synchrounous Line Interface
• REV11-A or -B bootstrap with memory refresh
terminator
• Terminal (LA32, VTS2)

OPTIONAL SOFTWARE:
None
TRAINING CREDITS:
None
SUPPORT CATEGORY:
A - For initial installation, Software Support will be
provided as listed in the Software Support Categories
Addendum to this SPD. Subsequent licenses can be
purchased with Category C support. Sources have
Category C su pport.
UPDATE POLICY:
Software Updates, if any, released by DIGITAL during
the one (1) year period following installation, will be
provided to the customer for a media charge. After
the first year, updates, if any, will be made available
according to then prevailing DIGITAL policies.
ORDERING INFORMATION:
This software is furnished under a license for use on
a single CPU and can be copied and modified (with
inclusion of DIGITAL's copyright notice) only for use
on such CPU, except as may otherwise be provided
in writing by DIGITAL.
Standard options with no support services are only
available after the purchase of one supported license.
When a software license is ordered without support
services, the category of support applicable to such
software is Category C.

Source and/or listing options are only available after
the purchase of at least one binary license and after a
source license agreement is in effect.

Anyone of the following DEC Datasystem configurations (with DUV11):
• DS322 RX11 Floppy-based system
• DS324 RK11 DECpack-based system

The following key (E, R, V, Z) represents the distribution media for the product and must be specified at
the end of the "a" number, i.e., aJDS8-AE = binaries
on RKOS Disk.

OPTIONAL HARDWARE:
LP11 (CTS-300 systems only) or LA 180 line printer
PREREQUISITE SOFTWARE:
RT -11 operating system, Version 2C or later
OR
CTS-300/DIS System Software, Version 1 or later

August 1977

RK05 Disk
E
R
Microfiche
V
Floppy Disk
Z
No hardware dependency
Standard Options
aJDS8 -A- Single-use license, binaries, documentation, support services (RT -11 not included) (media: E, V)

AE-5564A-TC

SPD 10.62.0

RT-11 (CTS-300)/LSI-11 2780, Version 2
-2QJD58 -C- Single-use license, binaries, documentation, no support services (media: E,

Y)
QJD58 -D- Single-use license only (media: Z)

Source/Listing Options
QJD58 -E- All sources (RT-11 not included)
(media: E, Y)
QJD58 -F- Listings (RT-11 not included) (media: R)

ADDITIONAL SERVICES:
None
010.62.0

SPD 10.62.0

RT-11 (CTS-300)/LSI-11 2780, Version 2

-3-

SECTION B: 2780 Emulator GENERAL DESCRIPTION
2780 Emulator is the collective name for the set of
software products that allows various DIGITAL operating systems to emulate the operation of an IBM 2780
Model 1 or 2 Data Transmission Terminal with the
multiple record option. Emulation of the 2780 permits
communication between such DIGITAL systems and
(1) the following IBM Remote Job Entry programs
supporting the device: OS/HASP, OS/ASP, DOSPOWER and OS/RJE, or (2) a second DIGITAL supplied 2780 Emulator.
The following DIGITAL operating systems support the
Emulator for the 2780 Model 2: RSTS/E (CTS-SOO),
RSX-11D, RSX-11M, RT-11 and DECsystem-101 . In
addition, a COS-310 based emulator and a LSI-11
based RT -11 (CTS-300) 2780 are available (Model 1
2780 only). Section A gives the distinguishing features
of the particular 2780 Emulator described by this
SPD. The remainder of this section describes items
common to all PDP-11 2780 emulators.
OPERATION:
After the system operator starts the 2780 Emulator, it
solicits and responds to console command input.

Transmission: All 2780 Emulators can transmit data
from card readers, if they are present in the system,
and transmit data files from disk storage devices. The
RSTS/E 2780 Emulator has the added capability of
spooling or queueing transmission requests from
timesharing users.
All 2780 Emulators transmit EBCDIC and binary data.
Since the host systems use the ASCII character set,
however, they accept ASCII characters for transmission and then perform automatic character conversion. No conversion is performed on binary data.
The physical units of data that are transmitted are
called blocks. Blocks are divided into logical units
called records. Maximum block size is 400 characters; maximum record size when transmitting to IBM
operating systems is 80 characters, and when communicating with other 2780's or 2780 Emulators, the
record size is variable up to 132 characters. Records
that are less than maximum allowable are either extended to the maximum by blank filling, or transmitted as is, at the user's option. Up to seven (7) records
can be transmitted per block.
1Umited
to
2780
communication.

mode

only

for

PDP-11

Reception: All 2780 Emulators can print received
character data on a line printer, if one is present in
the system. In most cases, the software simulates limited-function vertical format control (VFC) by providing Top of Form (Skip to Channel 1), Print-andSpace-1, -2, or -3 line(s) functions, and skip to channels 2 through 8, all of which cause modulo 8 line
space operation--Le., skip to the next line which is an
even multiple of 8 from Top-of-Form. Both 64- and
96-character line printers are supported. However,
support of line printers which are too slow to keep up
with the speed of the communications link (Le., LS11
and LV11) is limited to "off-line" or DIGIT AL-toDIGITAL usage, because their speed can cause timeout errors in an IBM system.
All Emulators write files onto disk storage devices. In
such cases, a separate file is created for each received file.
All 2780 Emulators receive EBCDIC or binary data.
They can automatically convert EBCDIC data to ASCII
upon reception, or EBCDIC data can be written to a
file by the use of the binary mode.
Maximum receive block size is four hundred (400)
characters. The maximum receive record size is a
two-character escape code, plus one hundred thirtytwo (132) data characters. Up to seven (7) records
can be received per block.
All Emulators provide automatic answer to dial-in
rings.

Modems and Data Links: All 2780 Emulators support
operation over synchronous data links, in Point-toPoint Contention mode only, at speeds up to 4800
bits per second (except the LSI-11 based RT-11 2780,
which runs up to 2400 bits per second). Bell 201 or
208 modems or equivalent are specified. Operation
with other modems is not precluded, but warranted
support does not apply in these cases.
Data link control characters are supplied automatically by the Emulators. On transmission errors, the Emulators will re-try up to seven (7) times before declaring the link dead.

Configuring PDP-11 2780 Emulator Systems: Configuration requirements for each Emulator are defined in
Section A. Briefly, the PDP-11 2780 Emulators reauire
the following hardware beyond the standard operating
system configurations:

SPD 10.62.0

RT-11 (CTS-300)/LSI-11 2780, Version 2

4• DP11, DU11 DUP11, or DUV11 Synchronous Line
Interface
Communications
Arithmetic
Element
• KG11-A
(except the LSI-11 based RT-11 2780)
• KW11-L or KW11-P clock (except the LSI-11 based
RT-112780)
• 8K words of additional memory beyond the minimum may be required (refer to Section A)

TRAINING CREDITS:
No training credits are included in the 2780 Emulator
Software License charges. Training courses are not
required in order to operate the product.
SUPPORT CATEGORY:
The initial binary package carries Category A support.
Sources have Category C support.
Installation will be deemed complete in the case of
connection with IBM when:
• The customer's 360/370 configuration includes a
2701 Data Adapter, a 2703 Transmission Control
Unit a 3704 or 3705 Transmission Controller, or a
System/370 Model 135 Integrated Communications
Adapter.
• A DIGITAL sample procedure included with the
software has been successfully executed.
Installation in DIGITAL-to-DIGITAL operation will be
deemed complete when DIGITAL supplied files can
be successfully transmitted in both directions.

CUSTOMER RESPONSIBILITIES:
BEFORE installation of the SOFTWARE, the customer
must:
1. Obtain, install, and demonstrate operational to
DIGITAL's satisfaction any modems and other
equipment and facilities necessary to interface
to DIGITAL's communications line interfaces and
terminals.
2. Install or have installed all hardware, including
terminals, to be used on the system.
3. Generate for terminal support any and all IBM
systems that will be communicating with the Emulator, to DIGITAL's satisfaction.
4. Make available to DIGITAL personnel all hardware, including communications facilities and
terminals, to be used during installation and acceptance testing for a reasonable period of time
each day as mutually agreed upon by DIGITAL
and customer, until acceptance criteria are satisfied.
5. Provide access privileges and machine time on
any and all IBM systems on which the installation is to be performed.
6. When communicating with IBM, make available
to DIGITAL personnel an IBM 360/370 job
stream with data, to run via the 2780 Emulator
on-line to a 360/370 in accordance with the configuration specifications outlined above.
Delays caused by any failure to meet these responsibilites will be charged at the then prevailing rate for
time and materials.