Digital PDFs

DEC-11-XPDCQ-A-D

January 1976

2 pages

Original

0.1MB

Document:	10.69.00 7601 Remote RT11
Order Number:	DEC-11-XPDCQ-A-D
Revision:
Pages:	2
Original Filename:	http://bitsavers.org/pdf/dec/spd/10.69.00_7601_Remote_RT11.pdf

OCR Text

~DmDDmD

Software Product Description
PRODUCT NAME:

REMOTE/RT-ll, Version 1, Real-time Multiprocessor Oriented Editor

SPD 10.69.0

DESCRIPTION:
REM OTE /RT -11 is an RT -11 based system using a
DEC NET compatible protocol which allows users
having a minimum 16K word (28K word for
Foreground/Background) RT-11 host system to communicate with a maximum of eight satellite PDP-II's
with terminals. A satellite system has the facility to
develop programs (edit, assemble, compile and link)
using RT-ll Foreground/Background (F/B) in the
host system. Additionally, a satellite system can
down-line load absolute programs into itself.
DDCMP bootstrap format is used to transfer data to
and from satellite systems.

Additionally, a module which interprets and acts on a
number of RT-Il EMT's can be linked into programs
which are run on the satellite system. The actions which
this module performs can consist of formatting and
transmitting messages in DAP. This module provides
upward compatibility to a user who later acquires sufficient mass storage to run stand-alone RT-Il, and provides compatibility with existing languages supported
under RT-l1 that can be loaded into the satellite system. In particular, FORTRAN programs can be developed on the host system and run in the satellite system
by using the RT-ll EMT interpreter module.

Two modes of transfer are available: terminal mode
and DDCMP mode. In terminal mode, the satellite
system appears to the host system to be a locallyconnected terminal. The satellite system initially
bootstraps into this mode.

A set of diagnostics is included with REMOTE/RT-ll
to verify the operation of the satellite, host, and communication links.

All data and program transfers, however, take place
in DDCMP mode. To minimize overhead in the satellite system, the system uses the Data Access Protocol (DAP) embedded in the DDCMP bootstrap message. Full 2S6-word blocks are transferred with each
DDCMP envelope so that approximately 400 data
words per second are transferred using a 9600 baud
line. A PDP-l 1140 host with a KGll will handle
eight such lines.
Upon bootstrapping the satellite system, the user is
automatically connected to the REMOTE Editor, and
the query "FILE:" is displayed on the terminal. To
commence editing, a standard R T -11 file specification is entered. There are several commands that allow the user to load programs through the serial line
interface, execute programs, send messages, etc. The
operator can use the background for any normal RT11 operation if the host system is running the R T -II
Foreground/Background monitor. An alternate
bootstrap address can be used to effect immediate
down-line load of a preselected program.
During the execution of a program in the satellite
system, data transfers can take place both to and
from the host system using DDCMP. Modular design
enables a user having only local terminals to remove
the protocol-generating portions of the system. A user
not needing the Editor can remove it and still maintain communication with a satellite station.

January 1976

NOTE: The REMOTE/RT-11 software will not directly
interconnect with general DECNET software.
MINIMUM HARDWARE REQUIRED:
Host System:
Any valid RT-ll system configuration with:

•
•
•
•
•

at least 16K words of memory for Single-Job operation (up to 7 remote lines)
at least 24K words of memory for Foreground/Background operation (up to 4 remote lines)
at least 28K words of memory for Foreground/Background operation (up to 8 remote lines)
one DL II asynchronous line interface for each remote line (configured for 8-bit transmission)
one H312A null modem for each DLll-B, -D, or-E
line interface
one DFII-K optical coupler for each DLll-A or -C
line interface

Satellite Systems:
For program development only:
• one terminal (LA30, LA36, VTOS, VTSO, VTS2,
LT33, or LT3S)
• one DL 11 asynchronous line interface

DEC-II-XPDCQ-A-D

SPD 10.69.0

REMOTE/RT-11, Version 1

-2-

For program development, down-line loading, and satellite program execution:
•
•
•
•

any PDP-ll
4K words of memory
one terminal (as above)
DLII asynchronous line interface

OPTIONAL HARDWARE SUPPORTED:

Host System:
Any RT-ll supported device
Additional DLllline interfaces (with H312A or DFIIK as appropriate) to a maximum of eight
Additional terminals to a maximum' of eight
KG II CRC/LRC Arithmetic Element (for increased
communications speed)
KTII Memory Management Unit and additional memory to 64K words (for support 'of larger edit buffers
only)

Satellite Systems:
Additional memory to a system total of 28K words
M9301-YD (for any PDP-ll except LSI-ll based) or
REVll-YH (for LSI-based) bootstrap and DDCMP support for convenient down-line loading (highly recommended)
LPS II Laboratory Peripheral System (supported under
BASIC/RT-II, FOCAL/RT-II, FORTRAN/RT-II and
LA-II)
ARll Analog Real-time System (supported under
FOCAL/RT-ll, FORTRAN/RT-II and LA-ll)
VTll Graphics Display Processor (supported under .
BASIC/RT-ll, FOCAL/RT-II, FORTRAN/RT-II, and
LA-ll)
DRll-K Digital 110 System (supported under
FOCAL/RT-ll and FORTRAN/RT-II)
PREREQUISITE SOFTWARE:
R T -II operating system, Version 2B or later
OPTIONAL SOFTWARE SUPPORTED:
BASIC/RT-II I relinked with RTSIM
FOCAL/RT _III relinked with RTSIM
FORTRAN/RT-II relinked with RTSIM
LA-II Lab Applications Library
TRAINING CREDITS:
None
SUPPORT CATEGORY:
B, Software Support will be provided as listed in the
Software Support Categories Addendum to this SPD.

lLicense required for each satellite user.

UPDATE POLICY:
During the first year, Update Policy shall be in accordance with the Software Support Categories Addendum
to this SPD. 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.
The followng key (C, E, Y) represents the distribution
media for the product and must be specified at the end
of the "Q" number, i.e., QJ945-AC = binaries on DECtape.
C
E
Y

DEC tape

= RK Disk (DECpack)
= Floppy Disk

Standard Options
QJ945 -A-

Single-use license, binaries, documentation,
support services (media: C, E, Y)

ADDITIONAL SERVICES:
None
DI0.69.0