Lear Siegler ADM 3A - Section I: General Description; 1.3 Operational Description

54 pages

Save Page as PDF

To Next Page

To Next Page

To Previous Page

To Previous Page

Loading...

_,

__

LEAR SIEGLER, INC.

DATA PRODUCTS DIVISION

SECTIC)N I

GENERAL

DE~SCRIPTION

1.1

INTRODUCTION

This

lsection

of

the

manual

describes

the

primary

function

of

the

Lear

Siegler

ADM

3A

video

display

tenninalsho\\rn

in

Figure

I-I,

page

1-0.

Other

information

in

this

section

includes

specifications,

operating

features

and

ranges,

physical

dimensions,

and

a

list

of

available

options.

1.2 PURPOSE AND USE

There

are

numerous

applications

of

the

ADM

SA,

all

involving

the

transfer

of

asynchronous

data.

In

some

applications,

data

transfer

may

b€

exclusively

unidirectional;

either

from

the

ADM

3A

to a

host

computer,

or

from

the

computer

to

the

ADM

3A.

However,

a

more

frequent

application

of

thE~

ADM

3A

is

one

in

which

an

operator

communicates

with

the

computer,

and

the

computer

reacts

in

accordance

with

its

stored

program.

The

ADM

3A

features

the

following

general

capabilities:

• FlJ:lll28

ASCII

character

set

with

24

lines

x 80

characters,

non-glare

display

(24th

line

is

used

in

set-up

mode

to

select

terminal

parameters)

•

Eleven

communication

rates

in

full-duplex

and

half-duplex

send/receive

modes

•

Scrolling

•

Absolute

cursor

positioning

•

Variable

9-,

I().,

or

II-bit

word

structures

•

Upper

and

lower

case

characters

standard

•

Program

mode

•

Selectable

auto

new

line

operation

,-,

•

Standard

RS-232C

or

optional

20mA

current

loop

interface,

with

RS-232C

extension

interface

for

auxiliary

devices. (Selectable

keyboard

lock

or

gated

extension

port).

Optional

current

loop

interface

on

extension

port.

•

DTR

or

X-an/X-Off

handshake

mode

•

Special

control

character

sequences

•

Selectable

refresh

rate:

50 Hz

or

60 Hz

•

Non-volatile

set-up

mode

for

terminal

configuration

•

Personality

mode

to

designate

unique

characters

for:

- Fill

character

-

Turnaround

code

- X-On

IX-Off

characters

-

Answerback

(with

NVM

optional)

• Six

non-embedded

visual

attributes:

-

Blank

-

Blink

-

Reverse

video

-

Underline

-

Reduced

intensity

-

Character

graphics

•

CRT

screen

saver

•

Full

screen

reverse

video

•

Selectable

key

click

•

Business

graphics

Table of Contents