IBM 3278 Manual de uso y cuidado

---

----

---

- -

---

Personal Computer

- - -

---

-----

--_.-

IBM

Personal Computer

3278/79

Emulation

Adapter Technical .

Reference

1502336

First

Edition

(October

1983)

Changes are periodically made to the information herein; these

changes will

incorporated in new editions of this publication.

Products are

not

stocked

the address below. Requests for

copies of this product and for technical information about the

system should be made to your authorized IBM Personal

Computer dealer.

A Reader's Comment Form is provided

the back of this

publication.

this form has been removed, address comments

IBM Corporation, Personal Computer, P.O. Box 1328-C, Boca

Raton, Florida 33432. IBM may use

distribute any of this

information you supply in any way it believes appropriate without

incurring any obligations whatever.

FEDERAL

COMMUNICATIONS

COMMISSION RADIO FREQUENCY

INTERFEREN

STATEMENT

Warning: This equipment has been certified to

comply with the limits for a Class B computing

device, pursuant to Subpart J

Part

FCC

rules. Only peripherals (computer input/output

devices, terminals, printers, etc.) certified to comply

with the Class B limits may be attached to this

computer. Operation with non-certified peripherals

likely to result in interference

radio and TV

reception.

INSTRUCTIONS

USER

This equipment generates and uses radio frequency

energy and if not installed and used properly, i.e., in

strict accordance with the operating instructions,

reference manuals, and the service manual, may cause

interference to radio

television reception.

has been

tested and found to comply with the limits for a Class B

computing device pursuant to

Subpart

Part

FCC

Rules, which are designed

provide reasonable

protection against such interference when operated in a

residential installation.

iii

this equipment does cause interference

radio

television reception, which can be determined by turning

the equipment off

and

on, the user

encouraged

try

correct the interference by one

the

following measures:

• Reorient the receiving antenna.

• Relocate the equipment with respect to the receiver.

• Move the equipment away from the receiver.

• Plug the equipment into a different outlet so

that

equipment

and

receiver are

different

branch

circuits.

• Ensure that side option mounting screws,

attachment

connector screws,

and

ground

wires are tightly

secured.

•

peripherals

not

offered by IBM are used with this

equipment, it

suggested

that

you use shielded,

grounded cables with in-line filters, if necessary.

necessary, consult

your

dealer service representative

for additional suggestions.

The

manufacturer

not

responsible for any radio

interference caused by unauthorized modifications

this

equipment. It

the responsibility

the user

correct

such interference.

CAUTION

This product

equipped with a UL-listed

and

CSA-certified plug for the user's safety.

used in conjunction with a properly grounded

receptacle

avoid electrical shock.

Preface

This publication provides technical information about the IBM

Personal Computer

3278/79

Emulation Adapter Card. This

manual describes the hardware design and provides interface

information for the IBM Personal Computer and IBM Personal

Computer XT.

The information in this publication

for reference, and

intended for hardware and software designers, programmers,

engineers, and interested persons who need

understand the

design and operation of the IBM Personal Computer.

Contents

Section 1. IBM Personal Computer

3278/79

Emulation

Adapter

........................................

1-1

Introduction

.................................

1-1

Adapter Block Diagram

........................

1-2

I/O

Address Locations

.........................

1-3

Interrupt/Status

.................

1-4

Visual/Sound Register

(2Dl)

...................

1-5

Cursor Address Register (2D2, 2D3)

.............

1-6

Control Register (2D4)

........................

1-7

Scan Code Register (2D5)

......................

1-9

Terminal ID Register (2D6)

...................

1-10

Memory Address Locations

....................

1-11

Accepted Commands

.........................

1-12

vii

viii

Section

IBM

Personal Computer

3278/79

EmulationAdapter

Introduction

The IBM Personal Computer

3278/79

Emulation Adapter card

supports emulation

the base 3270 data stream

and

controls

communication between the IBM Personal Computer and an IBM

control unit. All system control signals and voltage requirements

are provided through a 2

31 position card edge tab. A coaxial

connector (type

BNC)

joins this adapter card to the control unit.

The adapter card will accept, decode, and execute commands

issued from the control unit

the IBM Personal Computer. All

information from the control unit

sent in the form

12-bit

frame over a coaxiallinlc Transition checks include

mid-bit

transition and transmission parity.

1-1

Adapter BlockDiagram

Coax

line Interface

Personal

Transformer

Control

Computer

Interface

,If

Data

Bus

Buffer

Control

Adapter

Block

Diagram

1-2

Otros manuales para 3278

Este manual sirve para los siguientes modelos

Tabla de contenidos

Otros manuales de De oficina de IBM

IBM

IBM NetVista A40 Guía

IBM

IBM IntelliStation M Pro 6230 Manual de usuario

IBM

IBM RT PC Manual de usuario

IBM

IBM NetVista X40 Manual de usuario

IBM

IBM NetVista 6049 Manual de usuario

IBM

IBM NetVista X40 Manual de usuario

IBM

IBM IntelliStation POWER 285 Guía de instalación

IBM

IBM PC 300PL Types 6862 Manual de usuario

IBM

IBM PC 300GL Types 6275 Guía de inicio rápido

IBM

IBM NetVista 6826 Manual del propietario

IBM

IBM NetVista Manual de usuario

IBM

IBM RT Manual de usuario

IBM

IBM NetVista 8302 Manual del propietario

IBM

IBM PC 300 Manual de usuario

IBM

IBM NetVista A20 Manual de usuario

IBM

IBM PC 300 Manual de usuario

IBM

IBM 5110 Manual

IBM

IBM NetVista 2276 Manual de usuario

IBM

IBM NetVista A30 Manual de usuario

IBM

IBM NetVista A30 Manual de usuario

IBM

IBM NetVista S42 Manual de usuario

IBM

IBM Aptiva 2162 Series Manual del propietario

IBM

IBM L40 SX Manual de usuario

IBM

IBM 360 Manual de usuario

Manuales populares de De oficina de otras marcas

HP m9060n - Pavilion - Elite Hoja de especificaciones

Asus

Asus E210 Series Manual de usuario

Dell

Dell Inspiron 600m Manual de usuario

Dell

Dell Inspiron 3662 Manual de usuario

TotalFlow

TotalFlow uFLO Manual de usuario

HP Presario SV7000 - Desktop PC Manual de usuario

HP ProDesk 400 G5 Manual

Logitech

Logitech MK320 Manual de usuario

Dell

Dell XPS 730 H2C Manual de usuario

Sony

Sony Vaio Series Manual de usuario

Sony

Sony VGC-LT32E - Vaio All-in-one Desktop Computer Manual de usuario

Alto

Alto MD 250 Manual de usuario

Lenovo

Lenovo ThinkCentre Edge 72 Manual

Lenovo

Lenovo ThinkStation D20 Manual

Arbor Technology

Arbor Technology FPC-7800 Series Manual de usuario

Sony

Sony VAIO VGX-TP1 Series Manual de usuario

Asus

Asus Eee Box B204 Manual de usuario

Dell

Dell Optiplex 9010 All In One Manual de usuario