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Purpose of This Guide

Who Should Read This Guide

How to Use This Guide

Quick Overview of the Contents

Related Documentation

Chapter 1 - Using the 3270/SNA Option

What Is Terminal Emulation?

Connecting to a Host Computer

Beginning a Host Session

The Emulation Screen Status Line

On-Line Status

Connection Status

Keyboard Status

Printer Status

Mode Status

Current LU Status

Status Messages

Using the Command Menu

Viewing the Keyboard Definitions

Managing multiple Sessions

Exiting from 3270/SNA Terminal Emulation

Returning to Emulation

Using a 3270/PC

Using the Host Session Adapter

Using the 3270/PC Keyboard

Chapter 2 - Using 3270/SNA Advanced Features

Using the Resident Emulation Program

How the Parts of 3270/SNA Work

Returning to Emulation through Menus or at DOS

Returning to Emulation by Using a Hotkey

Controlling How Much PC Memory 3270/SNA Uses

Capturing Print Data on Disk

Customizing the PC Keyboard

Reading in a 3270 Key Definitions File

Changing 3270 Function Key Definitions

Customizing International Characters

Saving Changes to 3270 Key Definition

Using Adapter Files

Recommendations for Using Adapter Files

Reading in an Adapter File

Setting Up the Printer

Controlling Display of the Status Line

Customizing PC Display Attributes

Saving Changes to an Adapter File

Entering Emulation from DOS

Chapter 3 - Installing the 3270/SNA Option

Overview of 3270/SNA Components

Installing the Hardware

Installing the Software

Assigning a Communications Line

Configuring a Token-Ring Card

Maximum Packet Size

Number of Transmit Buffers

Number of Link Stations

Link Address

Token-Ring Station Worksheet

Specifying Token-Ring Card Parameters

Chapter 4 - Planning a 3270/SNA Service

Planning the Number of Logical Units

Examples of LU Distribution

Planning the Station Characteristics

Planning Serial Line Characteristics

Planning Token-Ring Characteristics

Planning Logical Unit Displays

Planning Logical Unit Security

Chapter 5 - Managing a 3270/SNA Service

Creating a 3270/SNA Service

Adding the Service to a Server and Group

Setting Station Characteristics

Setting the Number of Logical Units

Managing an Existing Service

Starting and Stopping the Service

Changing The Service Description

Viewing the Service Status

Examining Who is Using the Service

Relocating a Service

Generating a Log Report

Deleting the Service

Changing Configuration Information

Changing Station Parameters

Selecting the Connection Type

Adding a Logical Unit

Modifying a Logical Unit

Deleting a Logical Unit

Making the Service Available to Users

Using the SET3270 Command in the User Profile

Access from the Menus

Access from the Command Line

Making 3270/SNA Resident in the PC

How the Parts of 3270/SNA Work in the PC

Providing Held Sessions through Menus or DOS

Providing Held Sessions with a Hotkey

Controlling How Much PC Memory 3270/SNA Uses

Solving Problems

Supporting 3270/PCs

Using the Host Session Adapter

Using the 3270/PC Keyboard

Appendix A - Error Messages

Corrective Actions


Appendix B - 3270/SNA Technical Description


Supported SNA Requests

Link Control Support

Token-Ring Support

SDLC Support

Display Station Support

Additional Features

Appendix C - SNATRACE

Who Should Use SNATRACE


What SNATRACE Captures

Viewing SNATRACE Information