HP 30292B User Manual

technology

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SNA NRJE Network Remote Job Entry

This paragraph describes System Network Architecture
Network Remote Job Entry (SNA NRJE) for both the
MPE V (SNA NRJE/V) and MPE/iX (SNA NRJE/iX)
operating systems. The term SNA NRJE is used to refer
to both SNA NRJE/V and SNA NRJE/iX. The terms SNA
NRJE/V and SNA NRJE/iX are used when a distinction is
necessary.

SNA NRJE/V on the HP 3000 Series 37-70 or SNA
NRJE/iX on the HP 3000 Series 900 provides enhanced
batch data communications between the HP 3000 and an
IBM Systems/370-compatible mainframe in a System
Network Architecture (SNA) environment. SNA NRJE
emulates the major features of an IBM 8100 DPPX/RJE
workstation using an SNA Physical Unit Type 2 (PU 2),
Logical Unit Type 1 (LU 1) device.

HP SNA Services (30292B):

- SNA NRJE Network Remote Job Entry

- SNA IMF/iX Interactive Mainframe Facility

- LU 6.2 Application Programming Interface

- SNA Distributed Host Command Facility/iX

Features

• SNA NRJE is able is able to
communicate with JES2, JES3, and
VSE/POWER host job entry subsystems.

• Automatically route job output based
on destinations selected by the user at
the time of job submittal - “Job
Management”

• Automatically route output based on
user-selected IBM host forms - “Output
Management”

• Process batch jobs originated by a user
on an IBM Mainframe - “Reverse NRJE”

• Provide Native Languages Support - for
data only. NLS 16-bit character
mapping; interactive and programmatic
access; and data integrity are not
supported for languages such as
Japanese, Korean, Simplified Chinese,
and Traditional Chinese.

• Host output can be sent to any
supported output device on an HP
3000 such as disk files, tape files,
printers, or user-written programs.

• Multiple HP 3000 users can
concurrently access the host for batch
processing.

• Jobs are submitted into the
transmission queue independent of the
line status.

• Users can submit jobs and receive
output without operator intervention.

• Other HP 3000 applications run
concurrently with SNA NRJE.

• SNA NRJE can share an SNA link with
other HP SNA service products.

• Customizable error and help message
facilities are provided.

• Host console commands can be sent
and host console data can be received.

• Data compression and character code
translation are configurable.

• SNA NRJE and SNA Link support
communications at up to 56 KB/s on
MPE V and 16 MB/s on MPE/iX.

• SNA NRJE can take advantage of
SNA/SDLC Link’s Auto-dial capability.

IBM Host Processor

Communications

Controller

MVS/SP
JES2 or JES3
ACF/VTAM

VSE
VSE/POWER
ACF/VTAM

IBM 8100

DPPX/RJE

or

0

0

P

C

L

R

E

A

D

Y

Printers

Magtapes

Disks

RJE Console

Card Readers

Printers

Card Readers

Terminals

Magtapes

Laser Printers

Disks

HP 3000

Printer

Up to 56 Kbps for MPE/V,
and 64 Kbps for MPE/iX

Switched

or Leased

HP 3000 V or

iX

SNA NRJE

and SNA Link

Modem

Modem

Modem

Modem

9600 bps

~

~

~

~

~

~

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SNA NRJE/iX requires the installation and use
of SNA/SDLC Link/iX (30291A), SNA/Token
Ring Link/iX (J2249A, requires MPE/iX
Release 5.0 or later) or SNA/X.25 Link/iX
(30298A), SNA NRJE/V requires SNA Link/V
(30246A). SNA/SDLC Link/iX, SNA/Token
Ring Link/iX, SNA X.25 Link/iX, and SNA
Link/V (referred to jointly as SNA Link)
manage the physical link to the host and
implement protocols in the lower three layers
of SNA. Each link product contains software,
a hardware interface card, and a cable. SNA
NRJE can run simultaneously with other
HP SNA services 9for example, SNA IMF) on
both the MPE V or MPE/iX systems. In
addition, all SNA services can run
simultaneously over the same SNA Link.

Functional Description

SNA NRJE must be used with an SNA Link
product, which implements protocols in the
lower three layers of SNA and provides
physical connectivity to the IBM host via
leased/dial-up lines or LAN. SNA Link
supports line speeds up to 56 KB/s on MPE V
and 16 MB/s on MPE/iX as well as
simultaneous batch and interactive
communications to an IBM host over a single
line.

SNA NRJE supports up to eight workstations
on an HP 3000. When these workstations are
used to communicate with different hosts,
each workstation must use a different SNA
Link.

The SNA NRJE user interface has commands
for submitting jobs, directing the output to
specific devices, directing the output to
specific predefined file equations, displaying
job status, and canceling jobs (see table of
Selected User Commands on next page for
other commands). These commands can be
issued interactively through a terminal, or
issued as part of an HP 3000 program

executing NRJE intrinsics. MPE commands
can be executed in the middle of SNA NRJE
operations. The HP 3000 will concurrently
process user applications and data
communications with an IBM mainframe.

In addition to SNA NRJE user commands, an
operator with Node Manager (NM) capability
has commands to start and stop the batch
workstations, obtain the host remote console,
start and stop tracing and other functions.
These commands may be issued either
interactively or through a batch job.

Operation of the user or operator interface is
independent of the status of the data
communications line. Submitted jobs are held
in a transmission queue and automatically
sent to the host when the line becomes
available.

Similarly, job output is held at the host and
sent to the HP 300 when the line connection
is made.

The Job Management feature of SNA NRJE
allows users, at time of submittal, to specify
the particular device to which their job output
is to be directed. If no device is specified,
output is directed to a default destination,
according to the configuration of SNA NRJE
by the NodeManager. No further user
intervention is required.

Note: Job Management is not available to
anyone communicating with a host using
the VSE/POWER job entry subsystem.

Output can be received on any standard
output device on the HP 3000 such as tape
units, disks, and printers. Similarly, jobs can
be input device such as terminals, card
readers, or disk.

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The Output Management feature of SNA
NRJE allows users to have job output routed
based on the form selected by the user’s host
JCL and a Lookup Table which provides a
mapping between host form names and HP
3000 file equations. Again default forms will
be used if none are indicated.

Reverse NRJE allows a user connected to an
IBM mainframe (or a user on a separate HP
3000 attached to the IBM) to start a job on an
HP 3000 if SNA NRJE on the HP 3000 is
active.

Note: The user must use the special form
CMD that causes SNA NRJE to stream a
received data set rather than route the data
set using file equation attributes.

Using SNA NRJE and SNA Link, an HP 3000
with an HP 2680 Laser Printer can act as a
remote or local (though still requiring a 37xx
communications controller) print station for
an IBM host. HP 3000 users can direct print
output data sets to the laser printer. Users
can specify an environment file that indicates
predefined forms, character fonts and formats

- data set by data set.
Native Language Support allows users to

select alternative Native Language Ids for
translation of user data. Only data going to
the host or coming from the host will be
translated, commands and messages will still
be in native 3000. Each reader, printer, and
punch can be configured with a different
language. NLS 16-bit character mapping;
interactive and programmatic access; and data
integrity are not supported for languages such
as Japanese, Korean, Simplified Chinese, and
Traditional Chinese.

Product Requirements

Both SNA NRJE/iX and SNA NRJE/V require an
IBM System/370-compatible mainframe (Model
370, 30xx or 43xx) with an IBM 37xx
communications controller. The following
software must be running on the host and
communications controller:

• Job Entry Subsystem: JES2 or JES3
running under
– Operating System: MVS

or

• Job Entry Subsystem: VSE/POWER
running under
– Operating System: VSE
– ACF/VTAM
– ACF/NCP

Selected User Commands

Command Function

ALTER* Revises the priority of a submitted

job, or jobs.

CANCEL* Cancels previously submitted jobs

and causes data sets returning from

transmitted jobs to be deleted.

DISPLAY Provides information about a

workstation.

EXIT Causes the user to exit from the

NRJE command interpreter (CI), and
returns control to the process from
which the CI was run.

##FD “File Definition” used within a job to

include the contents of the file
specified in the command.

HELP Provides you with information about

subsystem commands.

NRJE Invokes the subsystems command

interpreter. It is also an NRJE sub
system command, so that you can
switch to a different default
workstation.

REDO Modifies and executes the previous

NRJE subsystem command.

RUN Executes a prepared program.
SHOW* Provides information about jobs

you have submitted.

SUBMIT Prepares a batch input job stream for

transmission to a host system.

* This command has NRJE Manager extensions.

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HP will support certain versions, releases,
modifications, and Product Temporary Fix
(PTF) levels of the above software. The
Network Implementations Support Plan
(NISP) will help the customer engineer
determine support requirements in advance of
SNA NRJE in a particular network.

SNA NRJE/iX Product Requirements

• An HP 3000 Series 900 computer system
running a supported release of MPE/iX.

• HP 30291A SNA/SDLC Link/iX, J2249A
SNA/Token Ring Link/iX, or HP 30298A
SNA/X.25 Link/iX

SNA NRJE/V Product Requirements

• An HP 3000 Series 37-70 and MPE V operat­ing system

• HP 30246A SNA Link/V

Functional Specifications

SNA NRJE provides the HP 3000 with the
major functions of an IBM 8100 DPPX/RJE
workstation operating as a remote node in an
SNA network.

The maximum RU size supported by NRJE is
768 bytes.

SNA NRJE supports a record length up to 252
bytes (or characters) for JES2 and JES3 and
128 bytes (or characters) for VSE/POWER
when sending data from the HP 3000 to an
IBM host. Records up to 225 bytes in length
may be received from the host.

NRJE supports up to eight workstations, each
of which may support up to 16 LU-LU
sessions, with a maximum of 64 total LU-LU
sessions.

Installation and Configuration Policy

SNA NRJE is customer installable. However,
Hewlett-Packard will perform minimum
configuration of SNA NRJE in order to verify
minimum product functionality. These tasks
performed by HP are included in the product
purchase price.

For product configuration tailored to the
customer’s specific needs, or for a complete
HP implementation, HP offers a
comprehensive range of integrated and
flexible support services. Please refer to the
Network Support data sheets in this guide for
more information on these services.

Customer Responsibility

Prior to having HP personnel onsite to
perform minimum configuration of SNA NRJE,
the customer is responsible for the following:

• Providing HP with the information neces­sary to complete the Network
Implementation and Support Plan (NISP)
including:
– System configurations
– Logical network map identifying relevant

traffic flow

– Physical network map identifying relevant

network hardware components.

• Verifying that the necessary host mainframe
software is installed and configured to sup­port SNA NRJE. The customer should con­tact their HP Sales Representative for typi­cal host parameter values or consult the
“HP SNA Products Remote System
Configuration Guide (J2220-61025).

• Verifying that SNA Link/V, SNA/SDLC
Link/iX, SNA/Token Ring Link/iX, or
SNA/X.25 Link/iX is properly installed and
configured prior to the installation of SNA
NRJE unless an SNA Link will be installed
at the same time.

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• Updating the HP 3000 system to the proper
release level and installing the SNA NRJE
software using AUTOINST. Refer to the
HP 3000 MPE/iX Installation and Update
Manual (36123-90001) for MPE/iX systems
or the HP 3000 Software Update Manual
(32033-90036) for MPE V systems.

• Verifying that all of the necessary software
modules have been successfully installed by
AUTOINST and are at the correct version
levels using the NMMAINT.PUB.SYS utility.

• Performing full system backups as neces­sary and ensuring that the HP 3000 system
and personnel with HP 3000 system man­agement knowledge are available when HP
is onsite to complete the INP card installa­tion and minimum configuration of SNA
NRJE.

The customer is also responsible for
completing the configuration in order to fully
integrate SNA NRJE into the existing
customer network after HP has completed the
minimum configuration of the SNA NRJE.

HP Responsibility

Following the installation of SNA NRJE, HP is
responsible for the following:

• Confirming that all of the necessary soft­ware modules have been installed and are at
the correct version level.

• Configuring the SNA NRJE product to a
minimum configuration (1 LU) in order to
verify software and hardware functionality.

• Verifying the SNA NRJE configuration by
issuing the NRJECONTROL START com­mand and ensuring that the LU-to-LU ses­sion becomes active.

These steps complete HP’s portion of the
installation and minimum configuration of
SNA NRJE.

HP effort spent on problems that are not
caused by HP installation and configuration
activities is considered HP Consulting Support
and is billable to the customer at normal HP
time-and-materials rates.

System Environment

SNA NRJE/iX, SNA SDLC Link/iX, and
SNA/X.25 Link/iX are available on the HP
3000 Series 900 with currently supported
releases of the MPE XL or MPE/iX operating
system. SNA/Token Ring Link/iX requires
MPE/iX release 5.0 or later. SNA NRJE/V and
SNA Link/V are available on the HP 3000
Series 37-70 computers with the MPE V
operating system.

Documentation

The following documentation is for both SNA
NRJE/V and SNA NRJE/iX:

• 30292-61001 SNA NRJE User Programmer
Reference Manual

• 30292-61000 SNA NRJE Node Manager’s
Guide

• J2220-61025 HP SNA Products Remote
System Configuration Guide

• 5958-8544 HP SNA Products: Job Entry
Subsystem (JES) Guide

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SNA IMF/iX Interactive
Mainframe Facility

The SNA Interactive Mainframe Facility/iX (SNA IMF/iX)
product provides IBM 3270 device emulation for
Hewlett-Packard terminals, printers, and HP 3000 Series
900 systems. (SNA IMF/V, P/N 30247A, provides similar
functionality for MPE V systems.)

SNA IMF/iX on an HP 3000 Series 900 allows interactive
communications between the HP 3000 and an IBM
System/ 370-compatible mainframe using SNA 3270
protocols. SNA IMF/iX emulates the base function set of
an IBM 3270 control unit using SNA Physical Unit Type
2 (PU2 or 2.1), Logical Unit Types 1,2,3 (LU1, 2,3)
protocols. HP terminals, printers, and applications on
the HP 3000 running SNA IMF/iX emulate IBM terminal
and printer functions.

SNA IMF/iX allows access to 3270 subsystems on the
mainframe (such as TSO, CICS, and IMS) through a set
of high-level intrinsics. There are two modes of
operation. In programmatic mode, customer-written
application programs on the HP 3000 emulate IBM 3270
terminals and printers, exchanging data with the host

Features

• SNA IMF/iX and an SNA Link product
allow the HP 3000 to emulate the base
function set of an IBM 3270 control unit
using SNA (PU2 or 2.1, LU1, 2, 3)
protocols.

• Other HP SNA service products can all
be supported simultaneously over one
SNA/SDLC Link/iX or SNA/X.25 Link/iX.
The maximum datacomm line speed is
64 KB/s.

• SNA IMF/iX supports up to 127 devices
(terminals, printers, and application
programs) concurrently. With MPE/iX
Release 4.0 or later, SNA IMF/iX
supports up to 127 devices per SNA Link.

• The Pass Thru capability of SNA IMF/iX
allows HP 3000-attached printers and
terminals to emulate the base function
set of IBM 3270 printers and terminals.

• SNA IMF/iX Pass Thru takes advantage
of the Modified Data Tag feature of
selected HP terminals (such as the HP
700/94) and supports a write
optimization feature that limits screen
updating to modified rows only. These
features significantly reduce response
time.

• SNA IMF/iX provides a “rolling softkeys”
feature that allows the user to define
and label multiple levels of terminal
function keys to be their most
frequently used IBM 3270 program
function keys. Users can also define
various “menus” of function keys that
are clearly displayed in the terminal
screen. The SNA IMF Programmer’s
Reference Manual documents the
terminals supporting this feature, some
of which provide up to 16 softkeys on
the screen at a time.

• Terminals/printers being used in the
PassThru mode do not have to be
dedicated. The user may access either
the HP 3000 or the remote host from
the same terminal.

IBM Mainframe

Processor

Communications

Controller

SNA Link(s)

SNA

IMF/iX

Other HP

SNA Services

HP 3000/iX

IBM 3274

Control Unit

Up to 127 SNA IMF/

iX Devices
– HP Terminals
– HP 3000 Programs
– HP 3000 Printers

Up to 32 IBM Devices
– IBM Terminals
– IBM Printers

ACF/VTAM

ACF/NCP

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applications via intrinsics. The customer’s application
program decides which intrinsics to call. In Pass Thru
mode, an HP-written application program on the HP
3000 also emulates IBM 3270 terminals and printers,
exchanging data with host applications via intrinsics. In
Pass Thru mode, the selection of which intrinsics to call
is fixed.

SNA IMF/iX requires the installation and use of
SNA/SDLC Link/iX (30291B), SNA/Token Ring Link/iX
(J2167B)* or SNA/X.25 Link/iX (36939B). The SNA
Link products manage the physical link to the host and
implement protocols in the lower three layers of SNA.

* SNA/Token Ring Link/iX (J2167B) requires MPE/iX
release 5.5 Express 7 or later, or MPE/iX release 6.0
Express 1 or later.

Asian options also supported include:

• HP Asian Vectra PCs

• HP Asian Terminals

• HP Asian Printers

• Asian IBM environments

Functional Description

SNA IMF/iX is a software product that allows an
HP 3000 and attached devices to emulate the base
function set of an IBM 3274 control unit and attached
devices, which does not include graphics, programmed
symbols, color, or extended highlighting.

SNA IMF/iX requires SNA/SDLC Link/iX, SNA/Token
Ring Link/iX or SNA/X.25 Link/iX. These links manage
the communications link and implement lower-level SNA
(PU2 or 2.1) protocols. SNA IMF/iX provides interactive
and programmatic 3270 communications with a
mainframe and can run simultaneously along with other
SNA services such as SNA NRJE/iX and LU6.2 API/iX on
MPE/iX systems.

In the programmatic mode, user-written programs on
the HP 3000 can communicate with programs on the
host. HP 3000 programs may be written in C,
FORTRAN, COBOL, COBOL II, BASIC, Pascal, or SPL.

Features (continued)

• SNA IMF/iX allows programs on an
HP 3000 to communicate with
programs o the host system, through
a set of high-level intrinsics.
Programs may be written in C,
FORTRAN, COBOL, COBOL II, BASIC,
Pascal, or SPL.

• Most host application programs
designed to work with IBM 3270
terminals can usually be used with
minimal change.

• SNA IMF/iX runs concurrently with
other HP 3000 applications and can
be accessed from other systems via
HP’s Network Services.

• SNA IMF/iX supports HP’s Native
Languages Support (NLS 8-bit
character mapping), which allows
application programmers to create
local language applications for end
users. NLS 16-bit character mapping;
interactive and programmatic access;
and data integrity are not supported
for languages such as Japanese,
Korean, Simplified Chinese, and
Traditional Chinese.

• SNA IMF/iX supports IBM applications
with 480, 1920, or 3440 character
screen sizes.

• For Asian options only:

– SNA IMF/iX (ASIAN) supports

IBM’s DBCS protocol to ensure 16­bit data integrity communication
between the HP 3000 and the
Asian host.

– SNA IMF/iX (ASIAN) allows both

16-bit interactive as well as
programmable access to the
Asian IBM host.

– SNA IMF/iX (ASIAN) provides 16-

bit character mapping between
the HP (HP-15) and the IBM
(DBCS) data.

– SNA IMF/iX (ASIAN) supports

languages such as Japanese,
Korean, and Traditional Chinese.

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Program access is accomplished through use
of a set of intrinsics that are powerful
procedures, which perform the low-level task
of decoding the data streams.

(Table 1 provides a list of available intrinsics.)
The intrinsics can be used with the intrinsics
of other HP 3000 facilities such as
IMAGE/3000, VPLUS/3000, KSAM/3000, or
NS/3000. The high-level, easy-to-use nature
of these intrinsics results in improved
programmer productivity.

Because programmatic mode works by
exchanging information through screen
images, most host applications that have been

written for use with IBM 3270 controllers will
work with SNA IMF/iX with little or no
modification. For customers who are in the
process of changing from centralized to
distributed processing, this feature helps
provide a smooth transition.

The Pass Thru mode of SNA IMF/iX provides
users the capability of using HP 3000 attached
printers and DTC attached terminals for
interactive access to a host computer.

In this mode, SNA IMF/iX users can directly
access host software such as CICS or IMS, or
they can use TSO for program development.

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Table 1. SNA IMF/iX Intrinsics Summary

Intrinsic Function

ABORT3270 Aborts an outstanding no-wait REC3270 or TRAN3270 request.
ACQUIRE3270 Provides the SNA IMF/iX users the capability to start PASS Thru on an HP 3000 terminal

or printer programmatically.
ATTRLIST Returns the locations of attribute characters with all or a subsection of a screen.
CLOSE3270 Equivalent to turning off the specified device.
ERR3270 Returns the error message associated with a given intrinsic error number.
EXTFIELDATTR Returns information about the attribute information of the Double Byte
FIELDATTAR Returns information about the attributes of the specified field.
IOWAIT3270 Informs the user program that a previous I/O operation has completed.
IODONTWAIT3270 Waits for a previous no-wait I/O request to complete.
OPEN3270 Equivalent to turning on the power of a 3270 Display Station or Printer. It allocates the

internal screen buffer used by SNA IMF/iX.
PRINT3270 Prints a copy of the internal screen image to a spool file.
READFIELD Reads a field of data from the internal screen buffer and returns the data to an

HP application program.

READSCREEN Reads all or part of the internal screen buffer and returns this data to the

HP application program.
RECV3270 Allows the user program to receive the screen after modification by the host.
RESET3270 Equivalent to pressing the RESET key on an IBM 3270 Display Station keyboard.
SCREENATTR Returns information about the attributes of the screen image currently in the internal buffer.
STREAM3270 Equivalent to typing a Series of keystrokes in a 3270 Display Station keyboard. Provides

a mechanism for performing “special function key” operations from the HP application

program. Also allows more than one field of data to be updated in one Intrinsic call.
TRAN3270 Equivalent to pressing a transmit key in the 3277 or 3278 Display Station keyboard.

It causes modified data to be transmitted to the host the next time the host polls the device.
VERS3270 Returns the number if the version of SNA IMF/iX that is being executed in the HP 3000.
WRITEFIELD Writes data from the HP application program into an unprotected field if the internal

screen buffer.
READSTREAM Reads all or part of the untranslated host data stream.
WRITESTREAM Creates the data stream that an HP application program sends to the IBM host.

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Table 2.

Using the Pass Thru mode does not require
the use of dedicated terminals.

The Pass Thru mode of SNA IMF/iX is mot
intended as a replacement for real IBM 3270
devices.

For HP terminals being used in the Pass Thru
mode, the response time will be longer than
that of IBM terminals:

• The data transmission rate between the

HP 3000 and the terminals is slower than
that between the IBM 3270 controller and
its attached terminals.

• For terminals not supported by the write

optimization feature, the screens on the
HP 3000 and Pass Thru terminals are
rewritten any time a change is made. For
small changes, this contributes to an
increase in response time

• SNA IMF/iX uses the Modified Data Tag fea-

ture of the HP 700/94, HP 2394A, and HP
150 terminals in order to accurately and
flexibly handle null and blank characters. In
addition, this may result in improved
response time when compared to other HP
terminals.

• For applications where response time is

critical, please consult your HP Sales
Representative for more information.

• Although the principle functions of IBM

3270 terminal keyboards are implemented ­including Program Function (PF) keys and
Program Attention (PA) keys - there are
some differences:

• Some keys are in different positions, some

keys have different labels, and some keys
are not implemented. Table 2 lists the
major differences between IBM 3270 termi­nals and HP 2392 terminals.

There are minor logical differences in the way
HP terminals behave. Differences include:

• With Pass Thru mode, only unprotected

fields in which one or more characters have
actually been changed are transmitted to
the host. If a Pass Thru user “modifies” an

unprotected field by replacing the field with
exactly the same characters as it had previ­ously; the field would NOT be transmitted
to the host with SNA IMF/iX, since no char­acters had changed. A real 3270-type ter­minal will transmit such modified fields
whether or not any characters are actually
changed.

• Leading blanks can be converted to nulls
based on a configuration option at Pass
Thru startup.

• Trailing blanks can be converted to nulls
based on a configuration option at Pass
Thru startup.

• Trailing nulls can be converted to blanks
based on a configuration optional Pass Thru
startup.

• Magnetic card reader, auxiliary card reader,
and light pen are not provided in HP termi­nals using Pass Thru mode.

9

3270 Typewriter Keyboard

Program Function Keys

FIELD MARK, TEST REQ,
CURSOR BLINK, ALT
CURSOR, IDENT, DEV
CNCL, DUP, CLOCK, PRINT
and CURSOR SELECT
Keys

PA1, PA2, PA3, CLEAR,
SYSTEM REQUEST

SYSTEM AVAILABLE,
INSERT MODE, INPUT
INHIBITED Indicators

ERASE INPUT, ERASE
EOF, TAB, BACKTAB,
NEWLINE, RESET INSERT
Keys

3270 Characters

cent sign ¢
!
solid vertical bar |
“NOT” sign

HP 700/96 Keyboard

User specifies by typing
desired program function
number or through user­defined configuration of
HP function keys.

No equivalent on HP
terminals

Keys are in different
locations (Softkeys are
used)

Indicators not provided

Equivalent functions
provided

Corresponding to HP
Terminal Characters

[
]
!
^

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• SNA IMF/iX does not support the numeric
lock feature.

• Pass Thru mode does not support slave
printers (printers attached to terminals).

Functional Specifications

• SNA IMF/iX emulates the base function set
of the IBM 3274 terminal controller; the
base set does not include color, graphics,
programmed symbols, or extended high­lights.

• SNA IMF/iX supports communications to an
IBM System/370 (or compatible) mainframe
running either the MVS/SP, MVS/XA,
DOS/VSE, or VM operating systems with
ACF/VTAM through an IBM 37xx communi­cations processor running ACF/NCP.

• SNA IMF/iX supports communications with
an IBM S/36 running SSP or an IBM/38 run­ning CPF or an IBM AS/400 running OS/400.

• The SNA Link/iX product supports Physical
Unit Type 2 or 2.1 protocols; SNA IMF/iX
provides Logical Unit Type 1,2, and 3 emula­tion over the link. The SNA Link/iX or
SNA/Token Ring Link/iX can support inter­active (SNA IMF/iX and SNA DHCF/iX),
batch (SNA NRJE/iX), and programmatic
(LU6.2 API/iX) communications simultane­ously over a single link to an IBM host.

• In Pass Thru mode, SNA IMF/iX emulates
the IBM 3278-2, 3278-3 and 3278-4 display
stations and IBM 3287 printers.

• SNA IMF/iX supports up to 127 devices (ter­minals, printers, or application programs)
concurrently per SNA link with MPE/iX
Release 4.0 or later.

• The HP 700/94 terminal is recommended for
use with SNA IMF/iX in Pass Thru mode as
it offers the greatest performance and func­tionality. SNA IMF/iX also supports null
suppression mode on HP 700/94 terminals
which result in further performance
improvements.

• The following terminals support Modified
Data Tags and, consequently, provide a 10-

50% performance improvement in Pass
Thru mode and greater functionality over
other terminals.
– HP 700/96
– HP Vectra
– PC with Reflection 7 PLUS Version 3.3

(or later)

• In Pass Thru mode, non-MDT terminals are
not supported with all host applications that
are sensitive to nulls and blanks. In these
circumstances, an MDT terminal will func­tion properly and is strongly recommended
to be the terminal of choice.

• The following terminals are supported with
HP 3000 MPE/iX systems in Pass Thru mode
via the DTC attachment.
– HP 700/92
– HP Vectra PC with Advance Link 2392
– HP Vectra PC Reflection 7 PLUS,

Version 3.3 (or later)

• SNA IMF/iX supports the write optimized
feature for improved performance in Pass
Thru mode with the following terminals:
– HP 700/92

• With the HP X.25/iX Network Link (36939B)
and NS 3000/iX Network Services (36920B),
SNA IMF/iX supports these terminals when
they are directly attached to an HP 2334A
Plus or HP 2335 PAD.

This feature is supported on SNA IMF/iX or
SNA IMF/V (30247A) only and is NOT
supported on the IMF/V (30250A) product.
Other Pass Thru-supported terminals
configured to be one of the terminals listed
above are NOT supported.

• The HP 700/94, HP 2394A, HP 150, HP
700/92, and HP 2392A terminals support a

19.2 KB/s connection to the HP 3000.

• The following terminals support multiple
levels of “rolling softkeys” allowing up to 96
user-definable function keys.
– HP 700/94
– HP 2394A

• SNA IMF/iX supports any HP system
printer.

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• Link Level Message encoding:
– SNA IMF/iX supports both NRZ and

NRZI encoding.

• Access to the SNA IMF/iX intrinsics in pro­grammatic mode is provided in capability­mode as well as native-mode with the use of
HP-provided switch stubs.

• In Pass Thru mode, terminals configured as
consoles are not supported.

Product Requirements

• SNA IMF/iX requires an IBM System/370 or
compatible mainframe (models 370, 30xx,
0r 43xx) with an IBM 37xx communications
controller. The following software must be
running on the IBM host and communica­tions controller:
– MVS/SP, MVS/XA, DOS/VSE, or VM
– ACF/VTAM
– ACF/NCP

• For communications to an IBM S/36, IBM
S/38, or IBM AS/400 minicomputer, the fol­lowing software must be running on the IBM
systems:
– SSP (S/36) Release 5
– CPF (S/38) Release 7.0
– OS/400 (AS/400) Release 2 and the

HP 3000 must be running MPE/iX
Release 4.0 or later.

• HP will support certain versions, releases,
modifications, and PTF levels of the above
software. Your HP Sales Representative or
Systems Engineer can determine whether
SNA IMF/iX can be supported with your
particular configuration. The Network
Implementation Support plan (NISP) will
help the customer engineer determine sup­port requirements in advance of the installa­tion of SNA IMF/iX in a particular network.

• SNA IMF/iX Product Requirements
– HP 3000 Series 900 computer system
– HP 30291B SNA/SDLC Link/iX

or

– J2167B SNA/Token Ring Link/iX
– HP 36939B SNA/X.25 Link/iX

Installation and Configuration Policy

The customer is responsible for loading the
SNA IMF/iX software onto the system.

Hewlett-Packard will perform minimum
configuration of SNA IMF/iX in order to verify
minimum product functionality. This activity
is included in the product purchase price.

Customer Responsibility

Prior to having HP personnel onsite to
perform minimum configuration of SNA
IMF/iX, the customer is responsible for the
following:

• Providing HP with the information neces­sary to complete the Network
Implementation and Support Plan (NISP),
including:
– system configurations
– logical network map identifying relevant

traffic flow

– physical network map identifying relevant

network hardware components

• Verifying that the necessary host mainframe
software is installed and configured to sup­port SNA IMF/iX. The customer should con­tact the HP Sales Representative for typical
host parameter values or consult the
“HP SNA Products Remote System
Configuration Guide” (J2220-61025) for
details.

• Verifying that the SNA/SDLC Link/iX,
SNA/Token Ring Link/iX, or SNA/X.25
Link/iX is properly installed and configured
prior to the installation of SNA IMF/iX
unless the link product will be installed at
the same time.

• Updating the HP 3000 system to the proper
release level and installing the SNA IMF/iX
software using AUTOINST. Refer to the
HP 3000 MPE/iX Installation and Update
Manual (36123-90001).

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• Verifying that all of the necessary software
modules have been successfully installed by
AUTOINST and are at the
NMMAINT.PUB.SYS utility.

• Performing full system backups as neces­sary and ensuring that the HP 3000 system
and personnel with the HP 3000 system
management knowledge are available when
HP is onsite to complete the minimum con­figuration of SNA IMF/iX.

The customer is also responsible for
completing the configuration in order to fully
integrate SNA IMF/iX into the existing
customer network after HP has complete the
minimum configuration of SNA IMF/iX.

HP Responsibility

Following the installation of SNA IMF/iX, HP
is responsible for the following:

• Confirming that all of the necessary soft­ware modules have been installed and are at
the correct version level.

• Configuring the SNA IMF/iX product to a
minimum configuration in order to verify
software and hardware functionality.

• Verifying the SNA IMF/iX configuration by
issuing the RUN TTSSON.PUB.SYS com­mand with the appropriate parameters and
entering the IBMTEST command. This test
verifies the LU to SSCP session.

These steps complete HP’s portion of the
installation and minimum configuration of
SNA IMF/iX.

Additional Implementation
Assistance

For implementation needs that go beyond
installation, the customer can either provide
self-support or can purchase additional
services from HP. These services included
Network Startup and HP ConsultLine. In
addition, the customer can also purchase
service from HP on a time-and-materials basis.

Network Startup includes implementation
scheduling and coordination assistance,
network configuration and verification testing,
and network documentation.

System Environment

SNA IMF/iX is available on all HP 3000 Series
900 systems with currently supported releases
of the MPE/iX operating system.

SNA IMF/iX requires installation and
operation of HP 30291B and A5563A
SNA/SDLC Link/iX, J2167B SNA/Token Ring
Link/iX, or HP 36939B SNA/X.25 Link/iX.

Support Products

HP offers a spectrum of support service
products to help plan, implement, operate,
and manage your multivendor network
throughout the network lifecycle.

For more information, contact your HP Sales
Representative, or refer to the HP data sheets
for specific support services.

Documentation

The following documentation is for SNA
IMF/iX:

• 30293-61000 SNA IMF/iX Node Manager’s
Guide

• 30293-61005 SNA IMF Programmer’s
Reference Manual

• 30293-61008 Using SNA IMF Pass Thru

• J2220-61025 HP SNA Products remote
System Configuration Guide

• 30293-60211 SNA IMF/iX: User Support
Guide (For use in Taiwan)

• 30293-60221 SNA IMF/iX: User Support
Guide (For use in Japan)

• 30293-60231 SNA IMF/iX: User Support
Guide (For use in Korea)

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13

LU 6.2 Application Programming
Interface

This data sheet describes HP LU 6.2 API (Application
Programming Interface) for both MPE V and MPE/iX
operating systems. The term HP LU 6.2 API is used to
refer to both HP LU 6.2 API/V and HP LU 6.2 API/iX
products. The terms HP LU 6.2 API/V and HP LU 6.2
API/iX are used when a distinction is necessary.

HP LU 6.2 API/V on an HP 3000 Series 37 through 70 or
HP LU 6.2 API/iX on an HP 3000 Series 9xx provides HP
3000 users with a way to program HP 3000 application
programs for program-to-program communication in an
SNA environment.

HP LU 6.2 API implements the LU 6.2 “mapped
conversation verbs” for what IBM has named “advanced
program-to-program communications” (APPC). Users
may write “transaction programs” that use these verbs
(or high-level intrinsics as HP has implemented them) in
order to communicate with each other, even though
these programs may be executing on different systems
within the SNA network.

Features

• HP LU 6.2 API provides:

• High-level Intrinsics

• Support for Major Languages

• Support for IBM Applications

• Multiple Sessions

• Peer-to-peer Connectivity

• Parallel Sessions

• Support for Remote Attach

• Compatibility with Other SNA
Services

• Trace Facility

• Logging Facility

• User Controlled Sessions
Management from Program or CI
(CNOS

• Enhanced Communication Rates

• Efficient and easy-to-program prob­lem detection and recovery proce­dures.

• As with all HP SNA services, cus­tomized error and help facilities are
provided.

• X.25 Connectivity

IBM S/370 Mainframe

CICS

VTAM

IBM S/370 Mainframe

CICS

VTAM

IBM Communications

Controller

IBM AS/400

OS/400

LU 6.2

Transaction Program

HP 3000 MPE/

iX System

SNA

IMF/iX

SNA

DHCF/iX

SNA

NRJE/iX

SNA/SDLC Link/

iX (Node Type 2.0

nd 2.1) or

SNA/X.25 Link/

iX (Node Type 2.0 only) or

SNA/Token Ring Link/

iX (Node Type 2.1)

SNADS/iX

LU 6.2 API/iX

LU 6.2 Transaction

Program

HP 3000 MPE/V System

SNA NRJE/V

SNA Link/V

SNA IMF/V

LU 6.2 API/V

Parallel

Sessions

Node Type 2.1

Peer-to-Peer

SNA LU 6.2 Advanced

Program-to-Program

Communication

Node

Type 2.0

ACF/NCP

ACF/NCP

LU 6.2

Transaction Program

LU 6.2

Transaction Program

IBM Communications

Controller

Node

Type 2.0

SNA LU 6.2 Advanced

Program-to-Program

Communication

LU 6.2 Transaction

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HP LU 6.2 API provides

• High-level Intrinsics: HP 3000 program-
mers can use a set of high-level intrinsics to
implement program-to-program communica­tion in an SNA network.

• Support for Major Languages:
Application programs on the HP 3000 can
be written in COBOL II, Transact, or Pascal.
For LU 6.2 API/iX, C language applications
are also supported.

• Support for IBM Applications: HP LU

6.2 API supports Mapped Conversations
with CICS in an MVS or DOS/VSE environ­ment and Mapped Conversations with
VTAM in an MVS environment. With
MPE/iX Release 4.0 or later, HP LU 6.2
API/iX supports Mapped Conversations in
an OS/400 environment.

• Multiple Sessions: An HP 3000 applica­tion program using LU 6.2 API/V intrinsics
may have up to 8 LU-LU sessions running
simultaneously. With MPE/iX Release 4.0 or
later, an HP 3000 application program using
LU 6.2 API/iX intrinsics may have up to 256
LU-LU sessions running simultaneously.
Each session is responsible for a separate
communication task or for adding additional
bandwidth to a single communication task.

• Peer-to-peer Connectivity: With MPE/iX
Release 4.0 or later, LU 6.2 API/iX provides
peer-to-peer connectivity to an IBM
AS/4000 over Node Type 2.1. an HP 3000
may establish LU-LU sessions with an IBM
AS/400 over Node Type 2.1 without having
to go through a mainframe node.

• Parallel Sessions: With MPE/iX Release

4.0 or later, LU 6.2 API/iX provides support
for parallel sessions over Node Type 2.1. An
HP 3000 may establish multiple, simultane­ous LU-LU sessions over a single LU-LU pair
over Node Type 2.1.

• Support for Remote Attach: Remote
Attach is the ability of a remote LU 6.2
application to start running and begin com­munication with it.

• Compatibility with Other SNA
Services: The HP LU 6.2 API is completely
compatible with other SNA services offered

for the HP 3000. These HP SNA products
may all be running simultaneously over the
same SNA Link/V, SNA/SDLC Link/iX,
SNA/Token Ring Link/iX* or SNA/X.25
Link/iX to the SNA network. The SNA Link
products manage the physical link to the
IBM host and implement protocols in the
lower three layers of SNA.

Note: HP LU 6.2 API/iX supports Native­mode HP 3000 applications only.

• Trace Facility: An easy-to-use trace facili-
ty that allows HP 3000 application program­mers to track all LU 6.2 intrinsic calls and
executions within applications being devel­oped, serving as a valuable debugging aid
during program development.

• Logging Facility: A comprehensive logging
facility that records all online LU 6.2 API
session messages to aid in problem identifi­cation and resolution.

• User Controlled Sessions Management
from Program or CI (CNOS): With
MPE/iX Release 5.5 Express 7 or later, or
MPE/iX Release 6.0 Express 1 or later,
Programmatic or interactive user-controlled
session management allows users to change
session limits (over Node Type 2.1).

• Enhanced Communication Rates: The
maximum datacomm line speed between
the HP 3000 and the IBM mainframe host is
56 KB/s on MPE V and 16 MB/s on MPE/iX.

• Efficient and easy-to-program problem
detection and recovery procedures.

• As with all HP SNA services, customized
error and help facilities are provided.

• X.25 Connectivity: HP LU 6.2 API/iX can
communicate to an IBM mainframe over an
X.25 connection. The SNA/X.25 Link/iX
product (HP 30298A) can be used in place
of SNA/SDLC Link/iX, or SNA/Token Ring
Link/iX* but SNA/X.25 Link/iX emulates a
Type 2.0 node, not a Type 2.1 node.
Therefore if you run LU 6.2 API/iX over
SNA/X.25 Link/iX, you cannot communicate,
peer-to-peer with a Type 2.1 node like an
IBM AS/400.

* SNA/Token Ring Link/iX requires MPE/iX

release 5.0 or later.

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Functional Description

HP LU 6.2 API provides a set of high-level
intrinsics for application programmers to use
for program-to-program communication
between an HP 3000 application program and
an application program running on an IBM
host mainframe. HP LU 6.2 API/iX also pro­vides communication to an IBM AS/400.
These intrinsics are responsible for initiating
LU 6.2 conversations so that data can be sent
or received over these conversations on behalf
of program pairs needing to communicate to
complete a “transaction.” Examples of trans­action are database updates and file transfers.
LU 6.2 API consists of a set of user-callable
intrinsics that implement the set of LU 6.2
defined mapped verbs along with the follow­ing option sets:

Option Sets IBM-Defined Verbs

PIP data (both local
and remote support)

Flush the LU’s
send buffer MC_FLUSH

Prepare to receive
(including long locks) MC_PREPARE_ TO_ RECEIVE

Post on receipt MC_POST_ON_RECEIPT
Wait for posting

to occur WAIT
Test for posting or

request-to-send
received MC-TEST

Receive immediate MC_RECEIVE_IMMEDIATE
Get conversation

attributes MC_GET_ATTRIBUTES

LU 6.2 API intrinsics are summarized in the
following table.

LU 6.2 API Intrinsics Summary

Intrinsics Function

MCALLOCATE Establishes a mapped conversation

between two TPs.

MCCONFIRM Sends a confirmation request to the

remote TP and waits for reply.

MCDEALLOCATE Ends a mapped conversation

between TPs.

MCGETALLOCATE Receives the request from a remote

TP to start a conversation and then
establishes the conversation.

MCGETATTR Returns information pertaining to a

mapped conversation.
MCFLUSH Flushes the LU’s send buffer.
MCPOSTONRCPT Causes LU 6.2 API to post the con

versation when information arrives.
MCPREPTORCV Informs the remote TP that the

HP 3000 resident TP (the local TP)

is ready to receive data over the

mapped conversation.
MCRCVANDWAIT Waits for information to arrive on

the mapped conversation and then

receives the information. The

information can be data,

conversation status, or request

establishes the conversation.
MCRCVNOWAIT Receives any information available

on the mapped conversation with

out waiting.
MCREQTOSEND Notifies the remote TP that the

local TP is requesting to send data

for the mapped conversation.
MCSENDERROR Informs the remote TP that the

local TP has detected an error.
MCTEST Tests the conversation for the

receipt of information.
MCWAIT Waits for the receipt of information

on one or more conversations.

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Product Requirements

Requirements for IBM mainframe hardware
and software are the same for both HP LU 6.2
API/V and HP LU 6.2 API/iX.

IBM Mainframe Hardware Requirements:

•An IBM System/370 mainframe. This may be
any IBM plug-compatible mainframe that
supports 370 architecture.

• A port on an IBM 37xx or compatible com­munications controller that supports an
SNA line. The HP 3000 can also be con­nected to the Communications Controller
via an IBM 3710 Network Controller.
(Please check with your HP Sales
Representative for specific Communication
Controller model support.)

IBM Mainframe Software Requirements:

• Advanced Communication Function for the
Virtual Telecommunications Access Method
(ACF/VTAM) applications are supported
with:
– Mapped LU 6.2 conversations only
– ACF/VTAM version 3.2 or later
– MVS operating system
– Advanced Communication Function for
the Network Control Program (ACF/NCP)
remote transmission control program ver­sion 3.1 or later.

• Customer Information Control System
(CICS) applications are supported with:
– Mapped LU 6.2 conversions only
– CICS version 1.7 or later
– ACF/VTAM version 2.1 or later

• MVS or DOS/VSE operating system

IBM AS/400 Hardware Requirements:

• An IBM AS/400.

• A port on the AS/400 that supports an
SNA line.

IBM AS/400 Software Requirements:

• OS/400 Version 1.2 or later.

HP 3000 product requirements:

• For HP LU 6.2 API/iX:

If connecting to an IBM mainframe:

An HP 3000 Series 900 running a supported
release of MPE/iX. The SNA/SDLC Link/iX
product (30291A), SNA/Token Ring Link/iX
product (J2167B) or the SNA/X.25 Link/iX
product (36939B).

If connecting to an IBM AS/400:

An HP 3000 Series 900 running MPE/iX
Release 5.5 or later operating system. The
SNA/SDLC Link/iX (30291B and A5563A) or
SNA/Token Ring Link/iX product (J2167B).

• A full-or half-duplex data communications
line (switched or leased) between the HP
3000 and the IBM mainframe or IBM
AS/400. A pair of synchronous modems.

or

An X.25 connection to the IBM mainframe
(X.25 not supported to IBM AS/400).

• A block mode terminal that is supported by
VPLUS/3000 for configuration.

• A COBOL II, PASCAL, C (HP LU 6.2 API/iX
only), or Transact compiler.

Installation and Configuration Policy

The Customer is responsible for loading the
HP LU 6.2 API software onto the system.

Hewlett-Packard will perform minimum
configuration of HP LU 6.2 API in order to
verify minimum product functionality. This
activity is included in the product purchase
price.

Customer Responsibility

The customer is responsible for performing
the following tasks in order to successfully
install and configure HP LU 6.2 API:

• Providing HP with the information neces­sary to complete the Network
Implementation and Support Plan (NISP),
including:

– System configurations
– Logical network map identifying relevant

traffic flow

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– Physical network map identifying relevant

network hardware components.

• Verifying that the necessary host mainframe
or AS/400 software is installed and config­ured to support HP LU 6.2 API. The cus­tomer should consult the “HP SNA Products
Remote System Configuration Guide”
(P/N J2220-61025), or the “HP SNA
Products: AS/400 Guide” (P/N 5960-1629)
for details.

• Verifying that SNA Link/V, SNA/SDLC
Link/iX, or SNA/X.25 Link/iX is properly
installed and configured prior to the instal­lation of HP LU 6.2 API.

• Updating the HP 3000 system to the proper
release level and installing the HP LU 6.2
API software using AUTOINST. Refer to the
HP 3000 MPE/iX Installation and Update
Manual (36123-90001) for MPE/iX systems
or the HP 3000 Software Update Manual
(32033-90036) for MPE V systems.

• Verifying that all of the necessary software
modules have been successfully installed by
AUTOINST and are at the correct version
levels using the NMMAINT.PUB.SYS utility.

• Configuring HP LU 6.2 API in order to fully
integrate HP LU 6.2 API into the existing
customer network.

HP Responsibility

Following the installation of HP LU 6.2 API,
HP is responsible for the following:

• Confirming that all of the necessary soft­ware modules have been installed and are at
the correct version level.

• Configuring 1 LU with ‘Unsolicited Bind’
equal to ‘Y’.

• Starting the APPC subsystem and verifying
that the LU is in a PENDING or ACTIVE
state.

These steps complete HP’s portion of the
installation and minimum configuration of
HP LU 6.2 API.

Additional Implementation
Assistance

For implementation needs that go beyond
installation, the customer can either provide
self-support, or can purchase additional
services from HP. These services include
Network Startup and HP ConsultLine. In
addition, the customer can also purchase
service from HP on a time-and-materials basis.

Network Startup includes implementation
scheduling and coordination assistance,
network configuration and verification testing,
and network documentation.

Support Products

HP offers a spectrum of support service
products to help plan, implement, operate,
and manage your multivendor network
throughout the network lifecycle.

For more information, contact your HP Sales
Representative, or refer to the HP data sheets
for specific support services.

Documentation

For both HP LU 6.2 API/V and HP LU 6.2 API/iX:

• J2220-61025 HP SNA Products Remote
System Configuration Guide

• 30294-61000 HP LU 6.2 API:

• Application Programmer’s Reference Manual

For HP LU 6.2 API/iX:

• 5960-1629 HP SNA Products: AS/400 Guide

• 30294-61002 APPC Subsystem on MPE/iX
Node Manager’s Guide

For HP LU 6.2 API/V:

• 30253-90002 LU 6.2 API/V Node Manager’s
Guide

• 30253-90004 APPC Subsystem on MPE V
Node Manager’s Guide

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SNA Distributed Host Command Facility

The HP SNA Distributed Host Command Facility/iX (HP
SNA DHCF/iX) software product provides IBM mainframe
users who use IBM 3270 display stations with interactive
access to an HP 3000 Series 900 system. Together with
the IBM Host Command Facility (HCF Version 2) product
on the IBM mainframe system, SNA DHCF/iX gives IBM
3270 display station users the capability to run many
applications on the HP 3000 system. These applications
include TTY-mode and VPLUS applications.

SNA DHCF/iX provides the data conversion services that
translate output between applications on the HP 3000 and
the IBM 3270 datastream required by IBM display stations.
SNA DHCF/iX enables IBM 3270 display station users to
access the HP 3000 system over their existing SNA, Token
Ring, or X.25 network. SNA DHCF/iX requires the
installation and use of the SNA/SDLC Link/iX (30292B and
A5563A), SNA/Token Ring/iX (J2167B)*, or the SNA/X.25
Link/iX (36939B) product (referred to jointly as SNA
Link). SNA Link products manage the physical link to the
IBM mainframe and implement the datacomm protocols in
the lower three layers of SNA.

* SNA/Token Ring Link/iX (J2167B) requires MPE/iX
release 5.5 Express 5 or later, or MPE/iX release 6.0
Express 1 or later.

Features

• SNA DHCF/iX provides IBM 3270
display stations with HP terminal
capabilities including support for TTY­mode (simple ASCII) applications and
many VPLUS applications.

• VPLUS has been optimized for
applications used with SNA DHCF/iX;
VPLUS forms can be compiled into
IBM 3270 terminal formats prior to
runtime.

• SNA DHCF/iX provides HP terminal
emulation support for screen sizes of
24, 32, or 43 lines for TTY-mode
applications. VPLUS applications are
supported with screens of up to 24
lines less any lines required for a
window line or softkeys.

• In VPLUS applications, SNA DHCF/iX
supports HP terminal softkeys (as PF
keys) and a “window” line on IBM
3270 display stations using the
bottom three lines of the screen.

• One MPE/iX session is provided for
every SNA DHCF/iX user; each SNA
DHCF/iX session appears as a
Network Services Virtual Terminal
(NS VT) session.

• SNA DHCF/iX supports the HP “Break”
and “Control-Y” keys.

• SNA DHCF/iX can support up to 64
simultaneous sessions per SNA Link
node. Using multiple SNA Link nodes,
SNA DHCF/iX’s session count is
limited only by the number of LDEVs
available on the HP 3000

• Other HP SNA Service products are
supported over the same SNA Link;
each SNA Link can support up to
64 Logical Unit (LU) sessions. The
maximum line speed supported by
SNA Link is 64 KB/s.

• SNA DHCF/iX users can access
HP MM II applications on the
HP 3000.

• SNA DHCF/iX provides a full screen,
ISPF-like editor for use by
HP DeskManager users.

• SNA DHCF/iX contains a
comprehensive and flexible logging
facility that records SNA DHCF/iX
session and error messages.

IBM S/370

Mainframe running

Host Command Facility

Communications

Controller

IBM

3174

SNA Link(s)

HP 3000/iX

SNA

DHCF/iX

Other HP

SNA Services

IBM 3270 Display Stations

SNA DHCF/iX

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Functional Description

HP SNA DHCF/iX is a software product that
provides an IBM 3270 display station with
access to applications on an HP 3000. SNA
DHCF/iX emulates many features of a
remotely attached HP terminal; thus, it
appears as if the IBM 3270 display station has
a direct connection to the HP 3000 computer.
SNA DHCF/iX can be operated across an
existing SNA or X.25 network.

SNA DHCF/iX communicates with Host
Command Facility (HCF) on the IBM
mainframe in order to exchange data between
the user’s MPE session and the IBM terminal.
To the HP 3000 system, each SNA DHCF/iX
session appears as a NS VT session. For IBM
3270 display stations, SNA DHCF/iX provides
access to two primary groups of applications
on the HP 3000 Series 900 system.

• TTY-mode applications are characterized by
their simple use of terminal control charac­ters (carriage return, line feed, form feed,
tab, bell). SNA DHCF/iX translates the data
as output being sent to the IBM terminal.
This group of applications includes the basic
MPE/iX CI (Command Interpreter) com­mands.

• VPLUS applications are characterized by
the use of the VPLUS forms subsystem that
is included with the MPE FOS. VPLUS has
been enhanced so that an applications pro­grammer can design VPLUS-based applica­tions for the IBM 3270 display station in
addition to other HP terminals.
Consequently, IBM 3270 display station
users can be provided with access to many
VPLUS-based applications using SNA
DHCF/iX.

When developing VPLUS applications for use
with SNA DHCF/iX, the application designer
can develop and modify VPLUS forms using
techniques similar to those for HP terminals.

When the VPLUS forms have been designed
and are ready to be compiled, the applications
designer will select the “IBM 3270” box in the
Terminal Selection Menu of FORMSPEC, in
addition to any HP terminal options normally
selected, in order to include the IBM 3270
format in the VPLUS forms file. Please note
that, in an existing application, some VPLUS
forms may need to be modified due to
limitations of the IBM 3270 display station.
Many of the VPLUS forms may require no
changes.

Usage Considerations

HP SNA DHCF/iX is not a complete
replacement for HP terminals such as the HP
700/92 and HP 700/94 terminals. Due to
limitations of the IBM 3270 display station,
SNA DHCF/iX cannot support all HP 3000
applications. In addition, some HP 3000
applications may require modifications prior
to use with SNA DHCF/iX. Please refer to the
SNA DHCF/iX Application Programmer’s
Guide for information on usage considerations
discussed here.

The HP keyboard differs from the IBM
keyboard. The chart below shows some
differences.

HP Terminals IBM Terminals

HP Function Keys IBM PF Keys 1-8 (VPLUS

Applications only)

Security fields, Equivalent functions provided
Full-Bright and
Half-Bright fields

Previous Page Key, No equivalent functions
Next Page Key, provided for IBM terminals
Insert Line Key, and
Delete Line Key

HP terminal characters: IBM Terminal mapping:
Break PA1
Control-Y PA2
Hard RESET CLEAR

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HP 3000 applications that use special screen­mode or block-mode features that are specific
to HP terminals are not supported. Some of
these restrictions include:

• HP terminal escape sequences used for cur­sor positioning, terminal strap settings, pro­grammable softkeys, etc.

• Screen enhancements such as inverse video,
blinking, underlining, etc.

SNA DHCF/iX can provide universal access to
HPDESK for an integrated office automation
solution.

Within VPLUS applications, SNA DHCF/iX
supports all of the VPLUS intrinsics except for
VPRINTSCREEN and VPRINTFORM. Due to
limitations of the IBM 3270 display station,
VPLUS forms caching is not supported with
SNA DHCF/iX. In addition, several points
need to be considered in VPLUS forms design
including:

• Prior to using a VPLUS application with
SNA DHCF/iX, the VPLUS forms file must
be recompiled using the ‘IBM 3270’ terminal
option.

• When using FORMSPEC to design VPLUS
forms, an HP terminal such as the HP
700/94 is required.

• Unlike HP terminals, IBM 3270 display sta­tions require an actual space on the screen
for an attribute byte that describes the
attributes of the following field.

• Each field on the IBM display station needs
to be preceded by this attribute byte; conse­quently, back-to-back fields are not allowed
on the IBM 3270.

• With SNA DHCF/iX, a VPLUS form can have
at most 24 lines; if features such as softkeys
(two lines) or a window line (one line) are
used in the application, then the available
lines for the form are reduced by the num­ber of lines required by these features.

If the target application violates any of these
restrictions, then it is not supported by SNA
DHCF/iX. An error condition will be returned
to the application when an unsupported
feature is used. Prior to installation of SNA
DHCF/iX, target HP 3000 applications should
be qualified to ensure that they meet these
restrictions.

When using SNA DHCF/iX, IBM 3270 display
station users may experience different
performance and functionality than HP
terminal users. For IBM 3270 display stations,
response times may be somewhat greater than
an HP terminal due to the SNA network
overhead.

Functional Specifications

• SNA DHCF/iX supports many of the basic
functions of HP terminals. Please refer to
the Usage Considerations section for fea­tures that are not supported. Supported fea­tures include:
– Modified Data Tags
– Security Fields

• SNA DHCF/iX supports three different dis­play enhancements for IBM 3270 display
stations: full-bright, half-bright, and non-dis­play. (Non-display is for security fields.)

• SNA DHCF/iX supports those IBM devices
officially supported by IBM for the Host
Command Facility, Version 2. Please refer to
IBM’s HCF Product Specification Guide
(GC27-0647) for a complete listing.

• Each SNA DHCF/iX session appears as a
Virtual Terminal session. The pool of Virtual
Terminal sessions available for other users
will be reduced by the number of SNA
DHCF/iX sessions that are currently active.

• SNA DHCF/iX can support multiple simulta­neous sessions, depending upon the number
of VT sessions or LDEVs (depending on the
MPE/iX release) distributed across multiple
SNA Links.

• Each SNA Link can support up to 64 con­current sessions distributed among the vari­ous SNA/iX services.

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• Using an HP 3000 Series 900 and SNA
DHCF/iX as a gateway system, IBM 3270
display stations can access only TTY-mode
applications on other HP 3000 MPE/iX sys­tems. Access to other systems requires the
NS Network Service and Link products.

• SNA DHCF/iX supports “reverse VT” func­tionality; this permits an HP application to
acquire remote IBM 3270 display stations
provided that the SNA DHCF/iX session has
already been established.

Product Requirements

• Hewlett-Packard System Requirements
– HP 3000 Series 900 Computer System
– A supported release of MPE/iX
– SNA/SDLC Link/iX (30292B and A5563A),

SNA/Token Ring Link/iX (J2167A), or
SNA/X.25 Link/iX (36939B)

• SNA DHCF/iX requires an IBM System/370
or compatible mainframe with an IBM 37xx
communications controller. SNA DHCF/iX
has been certified with the following mini­mum levels of IBM software for the IBM
mainframe and communications controller:
– MVS (OS/VS2 Release 3.8)
– ACF/VTAM Release 3.2 or later
– ACF/NCP Release 5.2 or later
– HCF

• For communication to an IBM S/36 the fol­lowing software must be running on the IBM
system:
– SNA 3270 Emulation

• HCF V2 (Host Command Facility, Version 2

- IBM P/N 5668-985) must be installed on
the IBM host. IBM supports HCF V2 under
MVS as well as OS/VS1 and DOS/VSE (see
below) operating environments.

• Although IBM supports HCF V2 under the
OS/VS1 Release 7.0 and DOS/VSE Release
35 operating environments, HP SNA
DHCF/iX has not been tested or certified
with these operating systems.

HP will support certain versions and later
releases of the above software. Your HP
support representatives must determine
whether SNA DHCF/iX can be supported with
your network configuration. The Network
Implementation Support Plan (NISP) will
assist the HP account team in determining
support requirements prior to the installation
of SNA DHCF/iX.

Installation and Configuration Policy

The customer is responsible for loading the
SNA DHCF/iX software onto the system.

Hewlett-Packard will perform minimum
configuration of SNA DHCF/iX in order to
verify minimum product functionality. This
activity is included in the product purchase
price.

Customer Responsibility

Prior to having HP personnel onsite to
perform minimum configuration of SNA
DHCF/iX, the customer is responsible for the
following:

• Providing HP with the information neces­sary to complete the Network
Implementation and Support Plan (NISP)
including:
– system configurations
– logical network map identifying relevant
traffic flow
– physical network map identifying relevant
network hardware components.

• Verifying that the necessary host mainframe
software is installed and configured to sup­port SNA DHCF/iX. The customer should
contact their HP Sales Representative for
typical host parameter values or consult the
“HP SNA Products Remote System
Configuration Guide” (J2220-61025) for
details.

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• Verifying that SNA Link is properly installed
and configured prior to this installation of
SNA DHCF/iX unless SNA Link will be
installed at the same time.

• Updating the HP 3000 system to the proper
release level and installing the SNA
DHCF/iX software using AUTOINST. Refer
to the HP 3000 MPE/iX Installation and
Update Manual (36123-90001).

• Verifying that all of the necessary software
modules have been successfully installed by
AUTOINST and are at the correct version
levels using the NMMAINT.PUB.SYS utility.

• Performing full system backups as neces­sary and ensuring that the HP 3000 system
and personnel with HP 3000 system man­agement knowledge are available when HP
is onsite to complete the minimum configu­ration of SNA DHCF/iX.

The customer is also responsible for
completing the configuration in order to fully
integrate SNA DHCF/iX into the existing
customer network after HP has completed the
minimum configuration of SNA DHCF/iX.

HP Responsibility

Following the installation of SNA DHCF/iX,
HP is responsible for the following:

• Confirming that all of the necessary soft­ware modules have been installed and are at
the correct version level.

• Configuring the SNA DHCF/iX product to a
minimum configuration (1 LU) in order to
verify software and hardware functionality.

• Verifying the SNA DHCF/iX configuration by
issuing the DHCFCONTROL START com­mand and ensuring that the LU to SSCP
session becomes active for the LU that was
configured.

These steps complete HP’s portion of the
installation and minimum configuration of
SNA DHCF/iX.

Additional Implementation
Assistance

For implementation needs that go beyond
installation, the customer can either provide
self-support or can purchase additional
services from HP. These services include
Network Startup and HP ConsultLine. In
addition, the customer can also purchase
service from HP on a time-and-materials basis.

Network Startup includes implementation
scheduling and coordination assistance,
network configuration and verification testing,
and network documentation.

Ordering Information

Product/Option
Number Description

A5563A SNA Link Interface Card
010 RS-232-C Synchronous

Modem Connection

020 V35 Synchronous

Modem Connection
025 Autodial Connection
0D1 Factory Integration
Required for SNA/SDLC, SNA/Services bundle, NS

Point-to-Point, RJE, BSC/iX Softwares (option 001
CIB/CIO become obsolete)

Product/Option
Number Description

30292B SNA Services License,

Software and Documentation
310 Tier 1 License (also applies to 315,

320 Tier 2, 3 systems)
330 Tier 4 License (also applies to 335

Tier 5 systems)
340 Tier 6 License (also applies to 350

Tier 7 systems)
0CD Upgrade credit Tier 1
0CF Upgrade credit Tier 4
Requires A5563A.
Includes former 30202A, 30293A, 30294A, and 36935A.

Customers must also order the MPE media
product (51543B) on MPE/iX 5.5 Express 7 or
later, or MPE/iX 6.0 Express 1 or later. This is
required to receive software for this product.

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Support Products

HP offers a spectrum of support service
products to help plan, implement, operate,
and manage your multivendor network
throughout the network lifecycle.

For more information, contact your HP Sales
Representative, or refer to the HP data sheets
for specific support services.

Documentation

The following documentation is for SNA
DHCF/iX:

• 36935-61001 HP SNA DHCF/iX User
Support Guide

• 36935-61002 HP SNA DHCF/iX Node
Manager’s Guide

• 36935-61003 HP SNA DHCF/iX Application
Programmer’s Manual

• 36935-61004 HP SNA DHCF/iX Diagnostic
Message Manual

• J2220-61025 HP SNA Products Remote
System Configuration Guide

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For additional information please contact any of our
worldwide sales offices or HP Channel Partners.

For the location of the nearest sales office call:

United States of America:

Hewlett-Packard Company
[phone]

Hewlett-Packard Company
5201 Tollview Drive
Rolling Meadows, IL 60008
[phone]

Hewlett-Packard Company
5245 Pacific Concourse Drive
Los Angeles, CA 90045
[phone]

Hewlett-Packard Company
20 Perimeter Summit Boulevard
Atlanta, GA 30319-1417
[phone]

Canada:

Hewlett-Packard Ltd.
5150 Spectrum Way
Mississauga, Ontario L4W 5G1
Canada
[phone]

Japan:

Hewlett-Packard Japan, Ltd.
Korakuen Shinjuku Bldg., 4-15-7
Nishi-Shinjuku, Shinjuku-ku
Tokyo, 160, Japan
[phone]

Latin America:

Hewlett-Packard
Latin American Region Headquarters
Waterford Building, 9th Floor
5200 Blue Lagoon Drive
Miami, Florida 33126 USA
[phone]
Refer to country phone numbers

Australia/New Zealand:

Hewlett-Packard Australia Ltd.
31-41 Joseph Street
Blackburn, Victoria 3130
Australia (A.C.N. 004 394 763)
[phone]

Asia Pacific:

Hewlett-Packard Asia Pacific Ltd.
17-21/F, Shell Tower
Times Square,
1 Matheson Street
Causeway Bay,
Hong Kong
[phone]

Europe/Africa/Middle East:
Hewlett-Packard S.A.
150, Route du Nant-d’Avril
CH-1217 Meyrin 2
Geneva, Switzerland
[phone]

For direct country contact call:
Argentina: [phone]

Austria: [phone]
Belgium and Luxembourg: [phone]
Brazil: [phone]
Chile: [phone]
Columbia: [phone]
East Central Europe, CIS, and Yugoslavia: [phone]
Denmark: [phone]
Finland: [phone]
France: [phone]
Germany: [phone]
Greece: [phone]
Hungary: [phone]
Iceland: High Performance Systems hf. [phone]
Ireland: [phone]
Israel: Computation and Measurement Systems (CMS) Ltd.

[phone]
Italy: [phone]
Mexico: [phone]
Netherlands: [phone]
Norway: [phone]
Poland: [phone]
Portugal: [phone]
Russia and the CIS, Excl. Ukraine: [phone]
Slovenia: [phone]
Spain: [phone]
Sweden: [phone]
Switzerland: [phone]
South Africa: Hewlett-Packard South Africa (Pty) Ltd.

[phone]
Turkey: [phone]
United Kingdom: [phone]
Venezuela: [phone]

The information contained in this document is subject
to change without notice.

©Copyright Hewlett-Packard Company 1999

All Rights Reserved. Reproduction, adaptation,
or translation without prior written permission is
prohibited except as allowed under the copyright laws.

Printed in USA RO0499
5968-4833E