HP 30292B Using SNA PU2 or 2.1, LU1, 2, Protocols, 64 KB/s, Release 4.0 or later, SNA IMF/iX

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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

IBM Mainframe	ACF/VTAM
Processor

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 Òrolling softkeysÓ
	feature that allows the user to define
	and label multiple levels of terminal

SNA Link(s)
SNA	Other HP
IMF/iX	SNA Services
HP 3000/iX
Up to 127 SNA IMF/iX Devices

ÐHP Terminals

ÐHP 3000 Programs

ÐHP 3000 Printers

Communications Controller

ACF/NCP

IBM 3274

Control Unit

Up to 32 IBM Devices

ÐIBM Terminals

ÐIBM Printers

function keys to be their most

frequently used IBM 3270 program

function keys. Users can also define

various ÒmenusÓ of function keys that

are clearly displayed in the terminal

screen. The SNA IMF ProgrammerÕs

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.

HP 3000

Bus ness Servers