Digital Equipment EK-VT100-UG-001, VT100 User Manual

VT100

USER

GUIDE

EK-VT100-UG-001

1

st

Edition, August 1978

Copyright @

The

material in this manual is for informational purposes and

is subject

1978

to

by Digital Equipment Corporation

change

without

notice.

Digital Equipment Corporation assumes no responsibility

any errors

Printed

This puterized

The

Maynard. Massachusetts:

which

in

U.S.A.

document

typesetting

following are trademarks

may appear in this manual.

was

set

on

system.

DIGITAL's

of

Digital Equipment Corporation.

DECset-8000

for

com-

DIGITAL DEC PDP DECUS

UNIBUS

ii

DECsystem-10 DECSYSTEM-20 DIBOL EDUSYSTEM VAX VMS

MASS BUS OMNIBUS OS/8 RSTS RSX lAS

CONTENTS

Page

CHAPTER

PART 1 - KEYBOARD CONTROLS AND INDICATORS ..........................................

PART 2 -

1

SET-UP

SET-U P Features

SET -U P A ................................................................................................................ 1-7

OPERATOR

INFORMATION

MODE ............................................................................................... 1-7

at

a Glance ............................................................................... 1-7

SET-UP.B .................................................................................................................

Determining How

to Change a SET-UP Feature ...................................................................

SETTING THE SAVING

RECALLING SET-UP FEATURES ...............................................................................

RESETTING PART 3 PART 4 - SELF-TESTING

PART 5 -

SET-UP FEATURES ......................................................................................

DEFINITION

Self-Test Error Codes ..........................................................................................

WHAT

CHAPTER

SITE CONSiDERATIONS ...............................................................................................

UNPACKING

USER MAINTENANCE ...................................................................................................

INTERFACE

EIA Interface ...........................................................................................................

Electrical Characteristics .......................................................................................

What

a SET-UP Feature Does ......................................................

ANSWERBACK

THE

TERMINAL. .....................................................................................

OF EACH

TO

DO IN THE EVENT

2

INSTALLATION, AND

AND

INSTALLATION .............................................................................

INFORMATION

MESSAGE ..............................................................

THE

SET-'-UP

VT1

00

FEATURE .............................................

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

OF

A PROBLEM ....................................

INTERFACE

INFORMATION,

SPECIFICATIONS

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

1-10 1-12 1-12 1-13 1-13 1-13 1-15 1-15 1-16

1-4

1-8

1-9

2-3 2-3 2-6 2-6 2-6

2-7

iii

CONTENTS

(CONT)

Page

iv

OPTIONAL

EXTERNAL VIDEO CONNECTIONS .............................................................................

VT100 HOW

CHAPTER

THE

KEyBOARD ..............................................................................................................

COMMUNICATION PROTOCOLS .............................................................................

TERMINAL

ANSI COMPATIBLE MODE ........................................................................................

REPORTS ......................................................................... ; ..............................................

VALID

20

mA

CURRENT LOOP INTERFACE .....................................................

Electrica I Characteristics .......................................................................................

Composite Video Output (J9) ..............................................................................

Video

Input

(J8) ...................................................................................................

SPECiFiCATIONS ........................................................................................... .2-1 0

TO

ORDER

Control

Escape Sequences ...............................................................................................

Cursor

Line

Size

Character A ttri butes ............................................................................................

Erasing ...................................................................................................................

Programmable LEDs ...........................................................................................

Character Sets

Scrolling Region ......... : .........................................................................................

Tab Stops ..............................................................................................................

Modes ....................................................................................................................

Cursor Position Report. .......................................................................................

Status Report .......................................................................................................

What

Reset ......................................................................................................................

Confidence Tests .................................................................................................

ANSI CPR Cursor Position Report CU

B Cursor Backward - Host

CU

D Cursor CUF Cursor Forward - Host

CUP Cursor Position .........................................................................................

CUU Cursor Up - Host DA

Device DECALN Screen DECANM DECARM DECAWM D

ECCO

DECCKM Cursor Keys Mode (DEC Private) ..................................................

DECDHL Double Height Line (DEC Private) .................................................

HARDWARE

3

CONTROL

Are You .......................................................................................................

PROGRAMMER'S

COMMANDS

Cha

racters ...............................................................................................

Movement

(Double-height and Double-width) Commands ............................

MODE ESCAPE SEQUENCES (detailed) ...........................................

LM

Commands ...........................................................................

(GO

Down -Host

Attributes

Alignment ANSI/VT52 Auto

Repeat

Autowrap

Column

DOCUMENTATION ..............................................

INFORMATION

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

and G 1 Designators) ........................................................

to

VT100

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

Mode

(D

VT100

to

VT100

to

Display (DEC Private) .....................................

(DEC

(DEC Private) ................................................

(DEC Private) ....................................................

EC

to

Host.. ............................................

VT100

and

'"

Private) .......................................................

and

VT100

and

VT100

and

VT100

.................................................................. 3-1 9

Private) .................................................

to

Host ....................

to

Host ...........................

to

Host. ......................

Host ................................

2-7

2-8 2-9

2-9

2-10

2-12

3-4

3-10

3-12

3-13 3-14

3-14 3-14 3-14

3-14

3-15

3-15 3-15 3-16

3-16

3-16 3-17

3-17

3-18

3-19

3-20

CONTENTS

(CaNT)

Page

D ECDWL DECGOFF Graphics Processor

DECGON Graphics Processor On (DEC Private) .......................................... 3-21

DECHCP Hard Copy (DEC Private) ................................................................. 3-21

DECID Identify Terminal (DEC Private) ......................................................... 3-21

DECIN LM Interlace

DECKPAM Keypad Application DECKPNM Keypad Numeric

DECLL Load LEDs (DEC Private) ....................................................................

DECOM Origin

DECRC Restore Cursor (DEC Private) ............................................................

DEC REPTPARM Report Terminal Parameters ............................................

DEC REQTPARM Request Terminal Parameters ........................................

DECSC Save Cursor (DEC Private) .................................................................

DECSCLM Scrolling DECSCNM Screen DECSTBM Set Top and

DECSWL Single-width Line (DEC Private) ...................................................

DECTST Invoke Confidence Test.. ..................................................................

DSR Device Status Report ..............................................................................

ED EL Erase

HTS Horizontal Tabulation Set .......................................................................

HVP

IN D Index ...........................................................................................................

LNM NEL RI

Reverse Index ...............................................................................................

RIS Reset To Initial State .................................................................................

RM Reset Mode ................................................................................................

SCS Select Character Set ................................................................................

SGR Select Graphic Rendition ........................................................................

SM

TBC Tabulation Clear ........................................................................................

MODES ...........................................................................................................................

ANSI

DEC Private Modes .............................................................................................

VALID

VT52

Double-Width

Mode

Erase

In

Display ...........................................................................................

In

Line .................................................................................................

Horizontal and Vertical Position ............................................................

Line

Feed/New

Set

Mode .....................................................................................................

Specified

MODE

Modes

ESCAPE SEQUENCES (detailed) ...........................................

Line (DEC Private) ................................................

Off

(DEC Private) ........................................

Mode

(DEC Private) ...................................................... 3-21

Mode

(DEC Private) ................................. 3-21

Mode

(DEC Private) ...................................... 3-21

(DEC Private) ...............................................................

Mode

(DEC Private) .....................................................

Mode

(DEC Private) ........................................................

Bottom

Line

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

Margins

Mode

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

(DEC Private) .............................

3-20 3-20

3-22 3-22

3-22 3-23 3-24

3-24

3-25

3-26

3-2~

3-26

3-27

3-28

3-29

CHAPTER

ADVANCED

20

4

Advanced Video Option Installation ..................................................................

mA

CURRENT LOOP OPTIONS -

20

mA

20

mA

VT100

VIDEO OPTION -

Current Loop Option Installation ............................................................

Current Loop Option Checkout.. ............................................................

OPTIONS

VT1XX-AA

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

VT1

XX-AA

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

4-3

.4-4

4-6 4-6

.4-7

v

APPENDIX

CONTENTS

ANSI

A

DEFINITIONS

(CONT)

AND

Page

NOTATION

APPENDIX

Figure

1

1-2 1-3

1-4

1-5

1-6

2-1

2-2

2-3 2-4 3-1 3-2 4-1 4-2 4-3 4-4

No.

-1

ASCII

B

VT1 VT100 VT100 SET-U P A SET-UP B SET-UP B VT100 VT100 20

mA Composite Video Terminal Data VT1 VT100 Advance 20

mA Terminal

CODE

CHART

FIGURES

Title

00

Terminal .............................................................................

Keyboard ............................................................................

Terminal (Rear View) .......................................................

Mode

Presentation .....................................................

Mode

Presentation .....................................................

Mode

Summary

Terminal Dimensions .......................................................

Rear

View

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

Current Loop Interface ....................................................

Output

Flow

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

00

Keyboard ............................................................................

Rear

View

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

Video

Option

Current Loop Option ........................................................

Controller

Board ............................................................

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

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

Installation .............................................

Page

1-2 1-4 1-6 1-7 1-8 1-8 2-4 2-5

2-8

2-9 3-2 3-4

4-4

4-5 4-7 4-8

Table

1-1

1-2 1-3

1-4 2-1 3-1

3-2

3-3

3.,.4

3-5

vi

No.

TABLES

Title

Categories SET-UP Feature Change

Nonfatal Displayed Error Codes ................................................

Problem Checklist ....................................................................... 1-1 7

EIA

Connector

SET-UP Features and

Alphabetic

Nonalphabetic

Function Key Codes ......................................................................

Control Codes Generated .............................................................

of

SET-UP Features ...................................................

Summary

Signals ..................................................................

Machine

Key Codes ...................................................................

Key Codes ............................................................

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

States .......................................

Page

1-9 1-10 1-16

2-6

3-5

3-6

3-7

3-8

TABLES

Table No.

3-6 3-7

3-8

3-9 3-10 3-11

Title

Cursor Control Key Codes ............................................................

VT52

Mode

Auxiliary Keypad Codes ..........................................

ANSI

Mode

Auxiliary Keypad Codes .......................................... 3-9

Specia I Graphics Characters .....................................................

Control Characters ......................................................................

VT

100

Escape Sequences Summary ...................................... 3-1 3

Page

3-8

3-9

3-10

3-12

vii

INTRODUCTION

The

VT100

will

tell you everything you need

A

checklist unique functions, and mode the

keyboard and keep

basic

terminal

label is provided

status

of

your

is

designed

it

up-to-date

machine.

to

for

making a

of

operation

work

very much like a

know

to

use

semi-permanent

of

your

so

that

you

typewriter.

your

terminal.

record

terminal. Place

will

have a

quick

This guide

of

the

features,

this

label

reference

under

to

the

CHAPTER

1

Operator

Information

1-2

MA-1986

The

VT100 typewriter computer.

CHAPTER

OPERATOR

is

a simple device

that

uses a video screen instead

If

you can operate a typewriter, you can operate a VT100.

to

operate. The terminal (Figure 1-1)

of

paper and communicates

INFORMATION

is

basically a

with

1

a

Chapter 1

is

divided

1.

Controls and Indicators

2. Setup Mode

3. Definition Self- Testing the

4.

5.

What

Part 1 shows all the controls and indicators on the terminal and summarizes

the function

Part 2 defines the

Part 3 describes each feature in further information on a feature mentioned in the in Part 2.

Part 4 provides information on

required

the

tests have been

Part 5 provides a procedure

with

the VT100. Easily recognized failures

provided

into

five parts:

of

Each

Setup Feature

VT100

to

do

in

the Event

of

each, thus providing a quick reference for these functions.

SET-UP mode and briefly summarizes its features.

to

start the built-in self-tests and

ru

n.

for

each symptom. Check this Jist before calling

of

a Problem

detail. Refer

self-testing the VT100. It outlines the steps

to

follow

in case you encounter any problem

to

this section

SET-UP Summary provided

how

to

interpret the results once

with

simple corrective actions are

for

service.

if

you need

1-3

OPERATOR

INFORMATION

PART

The a computer - information entered through the keyboard is sent is simultaneously an the dicators on

1 -

KEYBOARD

VT100

computer is displayed on the video screen. The

terminal normally performs a

the

VT100

ET-UP

D

CLEAR

SETI

GDJ[!][XJrnrnGJ[IJwrnrnEJmo

GG000000~G0wwnB

~@000G0~00~~.~Dc:::JgJ

§;]I

'"'''

10000000[J[]ITJG@J

CONTROLS

output

CLEAR

TAB

device for the computer -

keyboard are illustrated in Figure 1-2.

ONONE

LOLKBDOCKED

ALL

LlNEI

TABS

LOCAL

AND

two-part

0 0 0 0

SETUP

TOGGLE

AlB

110

INDICATORS

function.

TRANSMIT

RECEIVE

SPEED SPEED COLUMNS

It

is

an

input

to

the computer.

that

is, data coming in from

following

801132

controls and in-

~~BB

T'

RESET

device to

It

--

[JF1

[JF2

~

~~;~E

EJ

000[J

[JF3 [JF4

0000

~000

0DD

I I

Figure 1-2 VT100 Keyboard

(SET-UP

This key is used

form specific functions such

and altering terminal characteristics.

ON

This indicator lights

and ready

LINE

Key I

in

Indicator

to

transmit

conjunction

as

to

show

that

or

receive messages.

with

other keys to per-

setting tabs, scrolling,

the VT100 is on-line

[!]

[II

B B Keys

Each

of

these keys causes the

code

which Consult your local operating ing

of

keys increase The ''+-'' and

IBACKSPACE

This key transmits a backspace code.

has a special meaning

these keys. In SET-UP mode the

or

decrease the brightness

"-+"

keys move the cursor left and right.

IKey

VT100

proceduresfor

to

transmit

to

your system.

the mean-

"i"

and

of

the display.

a

",t."

LOCAL

This indicator lights and cannot communicate

mode the keyboard remains active and all characters

typed are

KEYBOARD

This indicator lights been turned off. The from the host. This condition can be ing and exiting SET-U P mode.

L

1-L4

These indicators are turned on and Consult ing self-test errors.

1-4

Indicator

placed on

LOCKED

Indicators

your

local operating procedures for the mean-

of

each indicator. L

to

show

the

Indicator

to

VT100

1-L4

that

the terminal is off-line

with

the host device. In local

screen.

show

that

is still able

are also used

the

keyboard has

to

receive data

cleared by enter-

off

by

the

host.

to

show

IBREAKI

This key transmits a break signal.

IPF11-lpF41

Each code Consult

ings

Numeric

The numeric keypad enables numbers to be entered in calculator fashion. Each key in the numeric keypad generates the same character as the corresponding

meric key on the main keyboard. The I

responds interpreted by keys. meanings

Key

Keys

of

these keys causes the

which

of

Consult your local operating procedures for

has a special meaning

your

local operating procedures for the mean-

these keys.

Keypad

to

the I RETURNI key. These keys may also be

the

host

computer

of

these keys.

VT100

to

your system.

ENTERI

as

special function

transmit

key cor-

a

nu-

the

I DELETEI

This key causes the ter

code

or

may not be erased from the screen.

IRETURNI

This transmits either a carriage return carriage return SET-UP

I

LIN

This key transmits a linefeed code.

Key

to

the host system. The deleted character may

Key

(CR) and linefeed (LF) code. This

selectable feature.

EFEEDI

Key

VT100

to

transmit

a delete charac-

(CR)

code

or

is

SET-UP

When the terminal is in switches the from SET-UP B

a

LIN

a

In SET-UP mode this key switches the municate VT100 CAL).

Al8

E/LOCAL

with

from

~

Key

terminal from SET-UP A

to

SET-UP

~

Key

your system (ON

communicating

SET

-U P mode

A.

with

this

to

SET-UP B

VT100

LI

N

E)

your system (LO-

to

or

stops the

com-

key

or

ISHIFTI When pressed, this key enables the uppercase function

of tion

RESET~

When the terminal is in SET-UP mode this key starts the reset sequence. This has the same the

80/132

When the switches ters per

RECEIVE SPEED Q

When the terminal is in SET-UP B mode the ascending order.

Key

all keys.

the SHIFT key

terminal

terminal through

If

a key does

Key

power

COLUMNSr;]

terminal

the

display line size from

line

or

from

not

have an uppercase func-

will

be

disregarded.

result as turning

off

and then on.

Key

is

in SET-UP A mode this key

80

to

132

to

80

characters per line.

Key

this

the

receive baud rate settings in

charac-

key steps

CLEAR In

the

SET/CLEAR

In

tal tabs.

ICAPSI

LOCK

This key enables

betic characters only. All numeric and special symbol keys remain in lowercase.

I~~ROLLI

When data from the

second time, transmission resumes from where stopped. Check your local operating procedures sure

ALL

TABS

SET

-U P A

VT100.

SET-UP A this key sets

Key

first pressed, this key stops the transmission

that

your system recognizes

l!J

Key

this

key clears all horizontal tabs set in

TA8

~

Key

or

clears individual horizon-

the

transmission

computer

to

the VT100.

of

uppercase alpha-

When

this

key.

of

pressed a

it

was

to

en-

I#£l

TRANSMIT

When the

terminal through the

ascending order.

TOGGLE

When

the

selected operational feature on or off.

When pressed in combination key causes a bell code

SPEED

the terminal is in

1/0

the terminal is in SET-UP B mode

Key

~

Key

SET

-U P B mode

transmit

to

be sent

baud rate settings in

with

to

this

key steps

this

key

the CTRL key

the

host.

turns

this

ICTRLI

When

causes the

cial meaning

ITABI

This key transmits a

I

Esci

This key transmits a code

meaning your mand.

Key

pressed in combination

VT100

Key

to

system

to

transmit

to

your

system.

tab

your system. In

to

treat

the

with

another key, CTRL

a code

code.

which

many

next keys pressed as a

which

has a spe-

normally has a special

applications,

it

tells

com-

1-5

OPERATOR

INFORMATION

MONITOR

The

VT100

Figure 1-3.

CAPTIVE

SCREWS (4)

l

d

-r-r,

__

CONTROLS

monitor

contains

ACCESS COVER

only

one control. the

~~~~~~~~~---

~===n~

__

~~

______

power

I

~

__

~o~ol@I~~

switch,

~/NUMBER

which

EIA COMMUNICATIONS CONNECTOR

EXTERNAL VIDEO COMMUNICATIONS

MAIN

POWER SWITCH

"\

MODEL

is

shown

FUSE

+ SERIAL

LABEL

in

VT1

00

(Rear View)

Figure

Terminal

KEYBOARD I POWER POWER CORD

CONNECTOR

1-3

Audible There are three audible alarms associated

long tone (beep), and a series

Short pressed,

Long

the

OPTIONAL COMMUNICATION CONNECTOR

Indicators

Tone

with

• SHIFT not keys.

• KBD LOCKED indicator are lost.

• The keycJick feature has been turned

Tone

following

20mA

(Tones)

(click)

transmit

(beep) - The long tone is sounded by

- The short tone

the

following

or

CTRL keys

any codes

conditions:

exceptions:

do

SELECTOR CONNECTOR SWITCH

with

the

VT100:

of

long tones.

is

sounded by the terminal whenever a key is

not

generate any keycJick because these keys

but

only modify

is

turned on; in

the

which

off

in SET-UP mode.

the

a short tone (click), a

codes transmitted by

case, the characters typed

terminal

to

MA-1987

other

indicate one

do

of

1-6

• A bell code

• The cursor is bell feature

was

eight

is

enabled.

received

characters

from

the computer.

away

from the right margin and

the

margin

Series rapid succession

reading

of

or

Long

writing

Tones

to

indicate

the

- The terminal

SET-UP features. (When this occurs, check

features and then perform the

will

sound the long tone several

that

the nonvolatile memory (NVR) had

Recall or Save operation again.)

times

difficulty

the

SET-UP

in in

SET-UP

PART

MODE

2

Unlike turn memory switch

The mode of then change the features and store any

most

terminals,

the built-in terminal features on or off. Instead,

(NVR)

which

the

VT100

does

always remembers

not

use switches

what

features have been selected, as

the

or

VT100

had been set.

selection and storage

of

operation called SET-UP mode. When you enter SET-UP mode,

the features stored in the temporary memory

of

built-in terminal features

new

feature selections either temporarily,

is

shown

is

jumpers

to

individually

uses a nonvolatile

performed in a special

the

on the screen. You can

by leaving SET-UP mode; or on a fixed basis, by performing a Save operation. In either case, operation OFF, all temporary feature settings are replaced by the features

the

terminal operation

is

performed, or the terminal is

will

reflect

reset

the

new

feature selection. If a recall

or the terminal power is turned

that

have been

stored on a fixed basis.

SET-UP When entered, SET-UP mode provides

status. The first presentation - SET-UP A set in the line. The second presentation - SET-UP B - summarizes the status

Features

at a Glance

terminal and a visual ruler

two

brief summaries

of

the current feature

displays the location

which

numbers each character position on

of

the

of

terminal features.

SET -U P A - To enter a presentation "ruler"

which

similar

numbers each character position available on a line. The location

each tab stop is

shown

SET

-U P A, press the

to

Figure 1-4. The

by a

"T"

SET

bottom

placed above

-U P key. The display line

of

the

ruler. If the tab stop(s) set are

will

display consists

now

those desired, you may exit SET-UP mode by pressing the SET-UP key again you may

now

change

the

tabs

to

meet

your

requirements.

tab

the

if

a

status

stops

the

other

have

of

a

of

or

Figure

SET-UP A

Mode

Presentation

1-4

SET-UP·A

TO-EXIT-PREss--SET-UP-

MR·1517

1-7

OPERATOR

INFORMATION

SET-UP B - SET-UP B mode may only be entered from SET-UP A mode. To enter

SET-UP B from SET-UP A press the 5 key on the main keyboard. The then look like Figure 1-5. Figure summary tional information on a feature refer

To exit SET-UP B press the SET-UP key.

allows you

to

quickly determine

SET-Up·B

TO-EXIT-PRESS-"SET-Up·

display

1-6

summarizes the SET-U P B presentation. This

what

features are enabled.

to

the Definition

of

Each

Feature section.

For

will

addi-

Figure

SET-UP B Mode Presentation

SCROLL

AUTOREPEAT

SCREEN

1-5

[0 = JUMP

l1

= SMOOTH

[0

l.1

[0 =

DARK

L 1 = LIGHT BACKGROUND

CURSOR

[0

= UNDERLINE

l.1

= BLOCK

2 3

=

OFF

= ON

BACKGROUND

AUTO XON XOFF

ANSIIVT52

KEYCLICK

MARGIN

[0

L1

BELL

[0 =

l.1

=

= OFF

= ON

[0

l.1

~

(SHIFTED)

~

WRAP

AROUND

NEW LINE

INTERLACE (USE WITH GRAPHICS)

[0

= OFF

L1

= ON

VT52 ANSI

= OFF

= ON

[0

l.1

[0

l.1

{a

= OFF

= ON

= OFF = ON

4

= #

1 = £

{a

= OFF

1 = ON

POWER

PER

BITS

PARITY

"SPEED'

(OPTIONAL DISPLAY FOR CUSTOM FUNCTIONS)

5

[1:1:1:1

[0 = 60

\..1 = 50

SENSE

CHAR.

[0

= OFF

l.1

= ON

Hz

[0

l.1

[0 = ODD

l.1

1€OO--'R-SPEED-

T SPEED c:::::J R

= 7 BITS

= 8 BITS

= EVEN

MA-1988

·~oo

MR-1S1a

SPEEDc::::J

Figure

SET-UP B Mode Summary

1-6

1-8

Determining

What

a SET -U P

Feature

Does The SET-U P features are basically a series terminal and

to

shows

be

one

tailored

of

the

to

its operating environment. Table 1-1 lists each feature

following

general categories:

I nsta Ilation Computer Operator

compatibility

comfort

of

options in the

VT100

that

allow

the

Categories

of

SET-UP

Table 1-1

Features

The installation category concerns and any special options options changed, verify

Computer

the

are added or removed,

the

compatibility

VT100

can communicate may cause incorrect data may

prevent

these features

the

must

VT100

that

settings

contains

to

from

be obtained

itself

may be attached

or

of

these SET-UP features.

the

with

the

be sent

to

communicating

from

system manager since there are many

with

particular

mally

unique

SET-UP

change only

software

computers

package.

Feature

when

and special software. These feature settings

you need

to

Installation

with

the

initial installation to

the

physical location

features

which

host

computer. An error in these settings

or received from

with

the

host

computer

combinations

communicate

of

the

terminal

the

terminal.

must

be set correctly

the

If

any terminal

of

the

installation is

computer;

or

so

an

that

error

the computer. The settings for

programmer, operator, or

of

settings designed

with

a different

Computer Compatibility

to

would

computer

Operator Comfort

work

nor-

or a

ANSI/VT52 ANSWERBACK

AUTO REPEAT AUTO XON XOFF BITS CHARACTERS CURSOR INTERLACE KEYCLICK LINE/LOCAL MARGIN NEW PARITY PARITY SENSE POWER RECEIVE SPEED SCREEN SCREEN

SCROLL TABS TRANSMIT WRAPAROUND

E2]

3 (shifted)

Mode

PER

CHARACTER

BELL

LINE

BACKGROUND

BRIGHTNESS X

SPEED

Message

PER

LINE

X X

X X X

X

X X X

X

X X X X X

X

1-9

OPERATOR

INFORMATION

The operator

comfort

category contains the SET-UP features designed exclusively for the operator. These features vidual

preference. These features do

terminal and the computer.

the

The next section, Definition tion

of

each feature.

How

to

Change a

Changing any performed by

1.

Enter SET-UP mode by pressing the SET-UP key.

2.

Select the appropriate SET -U P mode by pressing

SET-UP

or

all

of

following

keyboard each from SET-UP B

of

Feature

the SET-UP features

the same basic steps.

time

to

SET-UP A.

3. Position the cursor above To

position

TURN"

keys

the

cursor,

may

be used. Some features do

specific key is dedicated

4. Change the feature setting

or

the

keyboard the

feature

appropriate dedicated key. Each

will

change, generally to the opposite state.

allow

the

operator

not

affect any operations

to

tailor

the

Each SET-UP Feature, describes

is

a simple operation and is generally

the

you

want

to

switch

the

feature

the

"SPACE"

to

changing the feature.

by

pressing either the 6 key on

from SET-UP A

switch

bar,

or

"+-",

tab

"-+",

not

use this step since a

time

VT100

that

the

to

fit

occur between

specific func-

5 key on the main

to

SET-UP B or

stop

to

be changed.

"TAB"

the

and "RE-

the

main

key is pressed

indi-

Table

SET-UP Feature

Change

Summary

1-2

Table

1-2

briefly summarizes the SET-UP features,

in

to

change a given feature, and the key used

SET-UP Feature

ANSWERBACK

ANSI/VT52

AUTO REPEAT

AUTO

XON/XOFF

BITS

PER

BRIGHTNESS x

message x

mode

CHARACTER x

SET-UP A

Changed

Mode

the

SET-UP mode you must be

to

change

In

SET-UP B

the

feature setting.

Mode

x

Key Used Change Feature

to

CHARACTERS

tA

special sequence is required for

1-10

PER

LINE x

this

feature. See

the

detailed features description.

SET-UP

Change

Table

1-2

Feature

Summary

(Cont)

SET-UP

Feature

CURSOR

INTERLACE

KEYCLICK

LINE/LOCAL

MARGIN

NEW

PARITY

PARITY SENSE

BELL

LINE

Changed

SET-UP A Mode

X X

In

SET-UP B Mode

X

Key

Used

to

Change Feature

~

[TI

[J

~

[]

POWER

RECEIVE SPEED

SCREEN

SCROLL

TABS

TRANSMIT

WRAPAROUND

3 (shifted)

EJ

SPEED X

X

~

X

GJ

X

~

X

~

X

~and~

m

X

m

X

[]

1-11

OPERATOR

INFORMATION

Setting

the

Answerback

the

answerback message is

Message

different

from features. An answerback message can be typed ing steps:

1.

Place

the

terminal

2. Press the I SHI FTI and spond by placing

I CAPS LOCKI key

3. Type the message used in ter typing again and

is

the

actual

not

a part

the

answerback

go

in SET-UP B mode.

[!]

A=

on

the

will

not

delimiter

answerback

of

the

answerback message.

message. type the message

back

to

step 2. This is the

keys simultaneously. The

screen. (The ISHI FT' key IS required. The

work

here.)

character

message. The message

answerback message.

4. Type

the

answerback

message. The message ters. including space and control characters. Control characters displayed as a • character

5.

Type the message character is

typed

delimiter

the

to

indicate

character. Once the messsage

answerback

screen.

setting

into

the

which

only

way

their

presence in

message

any

of

the

other

VT100.

using

terminal

may

be any character

delimiter

If

a mistake is made

delimiter

to

correct errors in

may

be up

to

the

will

disappear

terminal

the

follow-

will

charac-

when

character

20

charac-

will

message.

delimiter from

re-

not

the

be

the

The save performed keyboard. The not though modify

VT100

perform

it the

features.

operation

at this operation, al-

can

the

computer

temporarily

setting

NOTE

must

be

terminal

can-

of

the

Once

the

above steps have been

porarily stored in

Saving

SET-UP

SET-UP features basis. To the formed.

temporarily

terminal

or

the

Features

now

terminal

the

VT100

may

be changed and stored on

store a feature.

reacts

according

is reset.

feature settings are replaced

To

store SET-UP

a simple operation

1.

2. Press

feature

that

Place

the

terminal

the

ISHIFTI and the message brief

wait.

the

settings

is

"Wait"

terminal

completed

and can be saved

exit

to

the

or

the

terminal

by

the

features

on a fixed basis.

accomplished

in SET-UP mode.

rm

keys simultaneously. The screen

will

be displayed in

will

return

the

answerback

with

either a temporary

SET-UP

new

mode

setting.

power

that

have been stored on a fixed basis.

perform

by performing

the

to

SET-UP A mode.

the

after If is

Once these steps have been performed. SET-UP features rarily stored

Recalling

The

temporarily have been stored perform

will

now

be

stored

SET -U P

Features

stored SET-U P feature settings may

on

a fixed basis.

the

recall operation as follows:

on a fixed basis.

If

you

wish

to

differ

return

message

will

be

tem-

Save operation.

or a fixed

changing

the

feature;

a recall operation is per-

turned

off. all

temporary

a save operation. This

the

following

upper-left

which

from

to

the

steps:

will

clear and

corner.

had been

the

settings fixed settings.

After

tempo-

which

is

a

1-12

1.

Place the

terminal

in SET-UP mode.

When a performed screen are destroyed.

recall

the

operation

contents

NOTE

is

of

the

2.

Press the After a brief

the

ISHIFTland

message

"Wait"

wait

the

[B]

keys simultaneously. The screen

will

appear in

terminal

will

the

upper-left

return

to

SET-UP A mode.

corner

will

of

the

clear and

screen.

When a formed screen are destroyed.

PART DEFINITION

reset

operation

the

contents

3

OF EACH

NOTE

is

per-

of

the

SET-UP

Resetting

The nal

memory

switch

FEATURE

the

VT100

may

had been

1.

Place

2. Press power the

Terminal

be reset

is cleared and the self-test

turned

the

on self-test

fixed SET-UP features.

This section describes each SET -U P feature in detail (in alphabetical order) and states the

terminal.

NOTE

Unless

ing

the screen.

will ANSI VT52 previous

programmer's

ANSWERBACK

Answerback the The with sage takes place or may

AUTO

otherwise

features does

ANSI/VT52

The

VT100

ming

standards -

stitute

(ANSI) and VT52. In

stated,

not

Mode

terminal

generate and respond

standards

mode,

the

DIGITAL

minal. Both

ANSI

section

is a

question

host

computer

VT100

answerback feature provides

the capability

to

the

host. The entire answerback sequence

automatically

requiring

also be

operator

transmitted

REPEAT

entering

result

follows

American

X3.41-1974

VT100

software

and

VT52 of

Message

asks

to

identify

action. The

The auto repeat feature

ically repeated second half

when

second. The auto repeat feature

board keys

SET-UP ESC NO SCROLL

at

the

except

the

key

the

rate

is

following:

TAB

RETURN CTRL and

how

in the loss

ANSI

to

terminal

using the

modes are

this

manual.

and

answer

the

terminal

itself

without

by

typing

allows

of

about

held

down

each feature

SET-UP

of

two

different

National

mode, the

mode

data

Standards

affects

and

chang-

displayed

program-

VT100

coded sequences per

and

X3.64-1977.

is

compatible

VT52

outlined

sequence

to

identify

the

with

video

in

where

itself.

terminal

by sending a mes-

affecting

answerback

the

mesage

screen

CTRL-BREAK.

a key

to

be

automat-

30

characters per

for

more

than

one-

any

affects

key

all key-

on

In-

ter-

the

from

the keyboard.

When

program

OFF and

terminal

0 key on

AUTO

The chronizing codes

then

back ON. To reset

in SET-UP mode.

the

main keyboard. The

will

be run, and

XON/XOFF

VT100

is capable

the

XON (DC1) and XOFF (DC3). The XOFF control sequence is used sion

of

data

from

the XON sequence is used the feature enabled, code

when

one

1.

The internal

of

the

2. The NO SCROLL key is pressed

When pressed again, mode,

In

the puter

If

the

3. The

4. the

or

XO

N code

to

host

terminal

CTR

L-S is pressed.

buffer

empties,

the

terminal

CTRL-Q is pressed, the

to

resu me transmission

the

terminal.

computer XON/XOFF codes, data sent during tions,

or

when

the

terminal

lost.

NOTE The

VTT

00

will (DC3) code is an

XON

XON/XOFF

(DC1) code is received regardless

BITS PER

This feature either 7 - or ation,

bit

mitted

and is ignored for a

CHARACTERS

The

VT100 characters the screen is the

132 characters is equipped

always

received

feature

setting.

CHARACTER

allows

8 is set

8-bit

the

characters.

to

PER LINE

is capable

per

line.

In

80

characters

character

wide

with

by

per

14

the

and

a space (or

Advanced

the

terminal

is run as

VT100

terminal

of

automatically

computer

to

resume transmission.

VT100

following

buffer

is reset,

if

the

terminal:

will

react according

to

stop

to

the

will

generate the XOFF

events occur:

is nearly full

is placed in SET-UP

the

I NO SCRO LLl key

is taken

VT100

software

does

buffer

is in SET-UP mode,

stop

transmission

will

resume transmission

terminal

of

the

line mode,

lines high

to

transmit

When

set

0)

for

characters trans-

II

characters received.

displaying either

80

character per line mode,

wide

by

24

the

(24

lines

Video Option). In

the

termi-

terminal

power

be reset,

generating syn-

the

transmis-

terminal;

With

mode

out

of

SET -U P

will

transmit

from

the

com-

not

support

full condi-

may

when

an

XOFF

of

when

the A UTa

and receive

for

8-bit

oper-

80

or

132

lines high. In

screen is

if

the

132

VT100

the

1-13

the

to

the

is

the

be

OPERATOR

132

character physically line

NOTE

When vice-versa, the

mode

changing

the

but

current

INFORMATION

per

line

same

width

the

characters are

from

80

to

contents

mode,

as in

132

the

character

of

displayed lines

the

80

character

more

compact.

per

line

the screen are lost.

mode

are per

or

When key

generates

terminal

NOTE

If

double

since

the

new

only

to

perform a line

line

feeds

computer

line

occur

is

feature

the

CR

consistently,

already

is disabled,

code;

an

feed only.

performing

the

LF

code causes

turn

this

function.

RETURN

feature

the

off

CURSOR

The

VT100 indicate acter displayed ing

block

ditional

definition

the

will

(.).

function;

offers a "active

be

placed

as

either a blinking

The

in

Chapter

INTERLACE

This

feature

is used interlace feature is

not

installed.

KEYCLICK

The

keyclick

TONE

is a key is pressed. The suit

the

operator's rience has when

Like

there

the

shown

is an

bell tone,

able.

LINE/LOCAL

The

LINE/LOCAL

the

place (off-line) keyboard typed puter on

the LOCAL connected to

or

on

the

MARGIN

The

a

typewriter. end a

tone

terminal

condition.

ON-LINE

on

the

keyboard are

and messages

screen. In

indicator

from

received

from

keyboard are

BELL

margin

of

bell

the

current

to a lert

If

the

feature

choice

positions"

on

cursor

see

3.

for

should

tone

which

keyclick

needs.

that

audible

the

feature

in

either

When

indicator

from

the

LOCAL

is ON),

computer;

the

echoed

cursor

line

while

operator.

of

or

the

screen. The

underline

selection

the

SGR escape sequence

high

resolution options. The

be

turned

is

generated

may

However,

an

operator

feedback

keyclick

allows

an

the

terminal

is ON) all

sent

the

computer

condition

the

terminal

computer;

on

is

much

is

eight

typing,

two

cursor

where

displays

the

cursor

(-)

may

perform

off

if

such an

every

be

turned

on

research and

is

more

from

the

keyboard.

volume

the

ON-LINE

directly

is

not

operator

or a LOCAL

is

on-line

to

are

(the keyboard

is

electrically

messages are

and characters

the

screen

same

directly.

as

characters

the

VT100

to

may

be

or a blink-

an

ad-

option

time

or

off

to

expe-

accurate

adjust-

to

easily

(the

characters

the

com-

displayed

dis-

not

sent

typed

the

bell

in

from

the

sounds

PARITY

Parity, sion.

tect checkerboard the determines disabled,

a

when

enabled,

If a transmission

it

and

character

if

the

no

parity

PARITY

the methods by parity puter match,

parity

the

VT100. sense is sending.

most

SENSE

sense feature

of

parity

must

characters rejected even rectly

by

the

VT100.

the

checkerboard

screen in place

checks

error

indicate character with

the

parity

bit

its

(::::::

error. The

is even

is

transmitted

checking,

If

the

parity

be

matched

If

the

parity sent

though

the

If a parity

character ( :::::: ) will

of

the

received character.

for

occurs,

presence

) on

defines

odd

feature

character

NOTE

If

the

parity

will

be

disregarded.

feature

is

turned

off, the

POWER

During be set

set

to

the

to

60

initial

the

hertz.

installation,

power

line

frequency. In

the

RECEIVE SPEED

The receive speed transmit

anyone

speed. The

of

the

110,134.5,150,200,300,600,1200,1800,2000,

2400,

3600,

The receive speed is

speed; transmit

the

data

terminal

must

be

VT100

following

4800,

9600,

independent

may

at a different

set

is capable

preselected

19,200

receive

speed.

correct

the

data

VT100

by

the

screen in place

parity

sense

or

odd.

When

or

received.

which

or

even, is

is on,

the

to

the

parity

sense features

to

the

computer

was

received

incompatibility

be

shown

parity

sense

terminal

the

to

match

the

of

speeds:

baud.

of

the

data

at

one

transmis-

can

placing

feature

parity

of

the

being

terminal's

the

do will

occurs,

on

selection

display

U.S.

this

computer

receiving

50,

transmit

speed

de-

a

of

is

two

used

com-

not

be

cor-

the

must

is

at

75,

and

NEW

LINE

The

new

line

feature terminal typewriter. pressing turn

(CR)

to

function

When

the

and

RETURN

code is received,

enables

like

the

new

key

line

feed (LF) codes.

the

code

the

RETURN key

RETURN key on an

line

feature

generates

is

interpreted

return and line feed.

1-14

the

When

on

electric

is enabled,

carriage re-

a line feed

as a

carriage

the

SCREEN

The screen the

operator screen. In tains

light

verse

characters

screen

BACKGROUND

background

to

determine

the

normal

characters

mode,

on a light

feature

screen

on a dark

the

background.

of

the

background

mode,

the

background;

display

VT100

display

in

contains

allows

of

the

con-

the

re-

dark

SCREEN

Unlike tain stead, the brightness. This feature of

mechanical controls and still select comfort may

BRIGHTNESS

most

video terminals,

switches

the

or

knobs

VT100

desired level

under

varied

electronically

be saved like any

to

eliminates

of

lighting

other

SCROLL

Scrolling is isting lines on the screen the

bottom

two

ways:

mode,

computer

the

or

jump

new

lines appear

sends

upward

top

of

scroll

them

the

or

to

screen.

or

smooth

on

to baud rates, the data is very rapid

upward mode, a of

data

ment

of

the

data

NOTE Smooth

per

second feature puter

to ensure

mode

is enabled.

must

movement

limit

is placed on

may

be sent

lines occurs

to

be read as

scroll

mode

to

be

added

be

enabled

that

of

the

to

the

at a smooth

it

appears on

allows a maximum

to

the

and

data

is

TABS

Just

like a

typewriter,

preselected

points

individually changed,

the

on a line. These

or

totally

the

VT100

adjust

screen brightness. In-

does

controls

the

high failure rate

allows

the

brightness for

conditions. This

feature in

downward

make

It

the

movement

room

for

new

can be performed in

scroll. In

the

screen as fast as

the terminal.

difficult

the

lines. In

speed

terminal. The

At

to

read due

at

which

upward

smooth

steady rate

the

screen.

of

when

can

tab

six lines

Auto

by

the

smooth

jump

stops

screen. The

supported

not

lost

VT100

cleared and then reset.

not

con-

the screen

operator

to

maximum

setting

terminal.

of

ex-

lines

at

jump

scroll

the

higher

to

the

scroll

new

lines

move-

allowing

of

data

XON/XOFF

host

com-

scroll

or

tab

to

may

be

TRANSMIT

Transmit

receive speed. The anyone

speed

of

the

SPEED

must

VT100

following

be set

to

is capable

preselected

match

of

transmit

the

computer

transmitting

speeds:

50,75,110,134.5,150,200,300,600,1200,1800, 2000, 2400,

Transmit

terminal data at a

3600,

speed is

may

transmit

different

4800,

9600,

independent

data

at

speed.

and

19,200

of

receive speed;

baud.

the

one speed and receive

WRAPAROUND

When

this

feature is enabled,

the

81

st

or

133rd

character (depending upon the line size selected) inserted on a line is position not

enabled, the lowing character position

automatically

of

the next line.

characters

81

st

would

of

or

the

placed in

If

the

wraparound

133rd

be

overwritten

current

the

first

character

feature

was

character and all fol-

into

the

last

line.

ri£l

L.!J (shifted)

The

VT100 United acter sets is one character, the standard U.S. character percase 3 key on character. The £ character is displayed character set is selected.

contains character sets for

Kingdom. The difference

the # or

set

the

main keyboard displays the #

the

between

£ symbol.

is selected,

U.S. and

the

when

two

the

char-

When

up-

U.

K.

at

PART

4

SELF-TESTING

THE

VT100

A

self-test the condition checks the

mode

is

of

the

following

built

Advanced Video M Nonvolatile Internal

Memory

memory

Keyboard

This

test

is performed

Self-Test Error Codes

There are

Fatal errors cause information

random

characters)

LEOs, L

guaranteed

two

broad categories

is displayed on

pattern

1-L4;

of

is

a possible error code displayed on

however,

if

a fatal

the

characters. The

into

the

terminal

should a

items:

emory

(NVR)

automatically

terminal

the

screen; however,

no

terminal

error

is found.

VT100

(if

of

to

that

automatically,

fault

be suspected. The

option

is installed)

whenever

the

terminal

errors: fatal and nonfatal.

immediately

stop all operations. No

the

only

error indication (in

function,

including

or

is

screen

most

addition

the

programmable

the

on

command,

self-test

turned

likely

to

lighting

tests

program

on.

intelligible

contains

the random

keyboard

of

LEOs, is

1-15

a

OPERATOR

INFORMATION

The

loopback formed be

invoked

the

proper See the for

further

test.

test

on

power-up;

programmer's

information

Nonfatal

is

separately

escape sequence.

Error

NOTE

not

per-

it

must

with

section

on

this

Table

1-3

Displayed

Codes

Nonfatal errors LOCAL

the

mode

screen.

There are

1.

2.

3. Keyboard missing

do

not

halt

the

terminal

and an error code character is displayed in the

four

types

of

nonfatal errors:

Advanced Video

Nonvolatile

data

Option

RAM

or

malfunction

4. Data loopback error (Data)

Table

1-3

shows

the

possible

nonfatal

screen and the failure represented

Displayed

Character

AVO

Faulty NVR

Module

KBD

Data

processor. Instead, the

data

RAM

(AVO)

checksum

error (NVR)

(KBD)

error

characters

by

each character.

that

terminal

upper-left

may

appear on

is forced

corner

to

of

the

1

2

3 X

4

5 X X

6

7

8

9 X

X

X X

X X X X

X

X X

X

<

X

>

PART

If procedure. This some

If

items

it

appears

other

the

terminal

an

5 -

operator

WHAT

that

part

X X

X X X

TO DO

there is a problem in the terminal, you should

test

will

of

the

appears

can check

X

X X X X

X

X X X

IN

THE EVENT OF A

help

to

determine

computer

to

be faulty, refer

prior

system.

to

making

PROBLEM

if

the

problem lies in

to

Table 1-4. This

a service call.

initiate

your

table

the

self-test

terminal

describes

or

in

the

1-16

Table

1-4

Problem Checklist

Symptom

VT1

00

will

not

turn ON

power

switch

is set

No

keyboard response

Garbled Characters

to

when

ON.

the

Possible Cause and Corrective Action

AC

power

cord is

not

plugged

AC

power

cord is

not

plugged

Power is a power.

AC line fuse

replaced. (See Figure

Keyboard cable

cable.

KBD LOCKED indicator on; board off. puter

Perform the self-test operation.

Transmit

able

Perform

not

known

coming from

working

call your electrician.

blown;

If

this condition persists. check

software

and/or

may

be

wrong;

the

self-test operation outlined.

electrical device (such as a lamp).

not

plugged into

people for a possible operating error.

receive speeds. parity sense.

check settings.

the

turn

terminal 0

1-2

for location.)

into

wall

into

the

wall

outlet;

monitor;

computer

terminal;

FF

outlet; plug in cord.

plug in cord.

check

outlet

with

If

and have the fuse

plug in keyboard

has turned the key

with

the host

or

parity en-

com-

no

1-17

CHAPTER

2

Installation,

Information

Interface

and Specifications

INFORMATION,

SITE

CONSIDERATIONS

The design

selecting a place

on

ment

to

operate the terminal. Extremes A summary section.

of

suitable

the

VT100

to

the terminal operator

of

VT100

terminal (Figure 2-1)

in

which to install the terminal.

guaranteed operating conditions is found

CHAPTER

INSTALLATION,

AND

will

be

a satisfactory environment

of

temperature and humidity should be avoided.

SPECIFICATIONS

normally pose

In

most

INTERFACE

few

constraints

cases, any environ-

in

at

the end

2

which

of

this

UNPACKING

The

VT100

VT100 VT100 VT100 VT100

AND

INSTALLATION

shipping carton contains the following items:

monitor

detached keyboard

power cord SET-UP label User's Guide

2-3

INSTALLATION,

8.9

CM

. ]

(3 112 IN.)

4.8

(1

7/8

~

__ ~ __ I ___

INTERFACE

flC

CM

IN.)

c:J

L 11.1 CM

20.32

....------------

(4

CM (8 IN.)

INFORMATION,

36.8

(14

~

t:J

-l

3/8

IN.)

CM

112 IN.)

AND

....------36.2

51.4 -CM

SPECIFICATIONS

~-----30.5

(20

1/4

IN.")

CM

(14

-------------'

(12

IN.)-------.t

1/4

IN.)-------.t

2-4

"MEASUREMENT

VT100

Terminal Dimensions

Figure 2-1

/'

'"

~

t

Y.

TAKEN WITH THE KEYBOARD PLACED FLUSH

41.3

45.7CM

CM

(161/4IN.)

(18

IN.)

TO

FRONT OF

J

'f

TERMINAL

UNDER UNDERCUT.

MA-1991

To install the

1.

Remove

work

2.

Place

cord

(Figure

VT100

perform the

the

area.

the

keyboard in front

into

the

2-1).

following

VT100

from the shipping carton and place

keyboard receptacle located on

steps:

of

the terminal and plug

the

it

in the desired

the

keyboard coiled

rear

of

the

terminal

3. Verify voltage

4. Connect

terminal and plug the other end outlet.

5.

Connect receptacle.

6.

Turn the on cursor

7.

Set the desired SET-UP features this

8.

Once the installation setup procedure is complete, record the SET-UP features the underside

CAPTIVE SCREWS (4)

that

(115

the

power

power-up

the

keyboard

will

manual.

selected on

the

power

V is standard in

power

communications

switch

self

be visible in

of

ACCESS COVER

selector

cord

to

on. The terminal

test

and

will

be turned on.

the

the keyboard.

switch

the

U.S.) and

the

power

cable

either

upper-left corner

VT100

cord receptacle on the rear

of

the

to

the ON LINE

After

outlined

SET-UP label and attach

shows the correct

the

power

the

will

cord into a nearby

appropriate

now

automatically

or

approximately one

of

the

in the operator's section

switch

communications

LOCAL

screen

wall

light

minute

the

outlet

is off.

of

the

wall

perform

located

the

of

label

to

vn

00

Figure Rear

2-2

View

1

6

~~1-~~==~~--~~------~~-~i'~-~-=-=~'

KEYBOARD

CONNECTOR

OPTIONAL COMMUNICATION

CONNECTOR

~

__

I

20mA

~~~~~mnmmr-

DDD

@

g

POWER POWER CORD SELECTOR CONNECTOR SWITCH

EIA COMMUNICATIONS CONNECTOR

EXTERNAL VIDEO COMMUNICATIONS

MAIN

POWER

-I

MODEL + SERIAL NUMBER

FUSE

SWITCH

LABEL

MA-1987

2-5

INSTALLATION,

INTERFACE

INFORMATION,

AND

SPECIFICATIONS

INTERFACE

INFORMATION

EIA

Interface

USER The ventive maintenance by the owner. The and

The

MAINTENANCE

keyboard keys are the only moving parts

VT100

water

VT100

or any mild detergent. Cleaners

packaging is

not

meant

to

with

be

weatherproof; there are several openings

of

the terminal and require no pre-

surfaces may be cleaned

solvents should

not

with

be used.

in the case through which liquids, coins, paper clips, and other objects can

Such objects

into contact objects on the

Rubbing

not remove the keycaps to switch contacts

Keep the ventilation under the

The basic terminal interfaces to the terminal summarizes the

nal as used in

with

the

keys

VT100

which

would

disturb

the

electronic operation

the circuitry. For this reason, avoid

top

of

the terminal,

with

a dry

or

using excessive

or

barely moist cloth should suffice

of

the terminal if they came

putting

water

drinks and metal

to

clean the terminal.

to

clean them. Do

clean them more thoroughly; damage may result to the

if

they are replaced incorrectly.

slots clear. Blocking these slots by placing objects on

may

cause the terminal

to

overheat.

operates on full duplex, asynchronous communication lines. The

line

with a 25-pin

meets the requirements

EIA connector signals; the

the

basic VT100.

connector mounted on the back

of

EIA specification RS232-C. Table 2-1

following

paragraphs explain each sig-

top

soap

fall.

of

the

or

EIA

Connector

Table

Signals

2-1

Pin Number

1

2

3 4 5

6

7

8 9

10

11 12 13 14 15

16

17

18

19

20

Description

Protective ground

Transmitted data

Received data Request to send Clear

to

send

Data set ready Signal ground (common return) Carrier detect (not used) (not used)

Same

as

clock

19

to

send) speed select

(Secondary carrier detect) speed indicator (not used) (not used) Transmit

(not used)

Receive clock (not used) (Secondary request

Data terminal ready

21

22

23

24

25

2-6

(not used)

Ring indicator

Same

as (not used) (not used)

19

Protective This conductor is electrica chassis. Use purposes is

Transmitted

VT100

The break signals on this circuit,

Ground

not

- Pin 1 lIy bonded

of

this conductor for reference potential

to

the VT 1

allowed.

Data

(from

VT100)

- Pin 2

00

transmits serially encoded characters and

which

is

held in the mark

state when neither characters nor break signals are

being transmitted.

Received

VT100

The

VT100)

receives serially encoded characters gener-

- Pin 3

Data

(to

ated by the user's equipment on this circuit.

Request

Asserted at

Clear Ignored

Data Ignored

Signal

to

Send

(from

VT100)

- Pin 4

all times when terminal is powered up.

to

Send

(to

at

all times.

Set

Ready

at

all times.

Ground -Pin

VT100)

(to

- Pin 5

VT100)

7

- Pin 6

This conductor establishes the common ground reference potential

permanently connected

for

all voltages on the interface. It

to

the

VT100

chassis.

Carrier Ignored

Speed

Detect

at

all times.

Select

(to

VT100) -Pin

(from

VT100)

8

- Pins

11, This signal is alternately called Secondary Request Send. The basic VT serted state at

Speed

Indicator

100

all times.

(to

VT100) -Pin

maintains this line in the unas-

12 This signal, alternately called Secondary Carrier Detect, is ignored

Transmission

Ignored

at

Receive Ignored

Data

at

Terminal

Clock

all times.

Clock

all times.

at

all times.

(to

VT100)

Ready

(to

(from

VT100)

- Pin

VT100)

- Pin

17

- PI N

Data Terminal Ready is asserted at all times.

is

Ring

Indicator

Ignored

at

all ti

(to

meso

VT100)

- Pin

22

19,

15

and

20

23

to

Current

Optional

Loop

20

mA

Interface

Electrical VT100

unasserted state is +12.0

VT100

an

or

+2.25 than and

Characteristics

Output

Voltages -On

V.

Input

Voltages

open circuit

V is interpreted

±25

V are

CCITI

Recommendation V.28.

all signals designated

-6.0 V to

-12.0

- On signals designated

i$

interpreted

as

a space

not

allowed. These levels are compatible

as

or

In most current loop applications, the figuration -

that

is, current is supplied and receiver are both passive, both the

mark state when power is turned off.

Conversion from active

to

passive (or vice versa) requires moving a slide switch.

In active mode either the transmitter

that

the

VT100

present and the transmitter

sources the

will

20

go

mA

to

turned off.

"from

VT100,"

V;

the

space or asserted state is

"to

VT100,"

-25.0 V to

a mark or unasserted state, and

the

mark or

+6.0 V to

+0.75

+25.0 V to

asserted state. Voltages greater in magnitude

with

EIA STD RS232-C

VT100

to

will

be connected

in

the VT100. In this mode,

a passive con-

the

transmitter

optically isolated, and the transmitter goes

or

the

receiver or both may be connected so

of

current. In active mode isolation is

the

space state when

power

to

the

not

VT100

V

to

is

2-7

INSTALLATION,

INTERFACE

INFORMATION,

AND

SPECIFICATIONS

Figure access cover and the individual pin assignment.

Electrical Characteristics

The

Transmitter

Receiver

2-3

shows the

electrical characteristics

Open circuit voltage Voltage Spacing current Marking current

Voltage drop marking Spacing current

Marking current

drop marking

20

rnA current loop interface connector mounted

of

the

20

rnA current loop interface are shown below:

Min

5.0V

20

rnA

15 rnA

Max

50V

4.0V

2.0mA 50

rnA

V

2.5

3.0

rnA

50mA

to

the

o

TERMINAL

ACCESS COVER

ASSIGNMENTS

1 - .TEST

2 -

3 5 -

7 - RECEIVE +

8 - PROTECTIVE GROUND

NEGATIVE

TRANSMIT

RECEIVE TRANSMIT

-

+

o

Figure

2-3

20

mA

Current Loop Interface

2-8

00000000

123

20mA

CU

o

LOOP CONNECTOR

5

78

RRENT

MA-1992

Video

External

Connections

In

addition

the

transmitter

ohms.

to

the

above specifications for passive operation, active mode

or

receiver in series

with

a source

of

17 V

±5

percent and

will

place

660

In addition external video devices. The video devices may act either as a slave when the connectors are the just lower

Composite The composite video combining the video signal lowing

EVEN

FIELD:

LAST DISPLAYED SCAN

TIME_

ODD FIELD: I LAST DISPLAYED .SCAN

EVEN

FIELD

1.0 V

14-----------------

OF

14------1---------------

to

the

EIA interface, the

connected

VT100

below

connector,

to

the composite video

video section

two

the

EIA connector. The upper connector,

J9,

Video

Output

when

female BNC connectors located on the back

is

the

video output.

(J9)

output

provides

with

nominal characteristics. (Refer

VERTICAL BLANKING

60

Hz

NON-INT = 2 SCANS

60

Hz

INT = 2 SCANS

50

Hz

NON-INT =

{

50

Hz

INT =

:\r\

I START :

I

: VERTICAL

EVEN

60HZINT

{

50

Hz

OF

FIELD

INT

BLANKING

= 2 =

INTERVAL

25

SCANS

24

SCANS

INTERVAL

112

SCANS

24

112

SCANS

VT100

connected

is also capable

output

to

the video input. The external video

RS 1 70-like

of

or

provide synchronized video

J8,

is the video

output

(see note) generated by

a composite sync signal. The

to

Figure 2-4.)

60

Hz

NON-INT =

60

Hz

INT

50

Hz

NON-INT =

{

50

Hz

INT =

=22

22 75

74

SCANS}

SCANS

SCANS SCANS

___

.~~~

r--

H

PE

{60

Hz

INT

50

Hz

INT

easily interfacing

to

the

of

the

terminal

input

while

output

~

RIOO

OF

FIRST SCANS IN

~

6356

has

240

DISPLAYED

EVEN

"' ± 50

VT100

the

fol-

FIELD

m

to

OV

TIME-

=

BRIGHT

NORMAL = .79

SYNC

FRONT PORCH =

Composite Video

1.00V_§

DIM = .64V-

BLACK = .29 V - u---'f

=O.OOVOLT-

H SYNC = 4.71

V-

1.54/Ls ± 50ns /LS

± 50

Figure

2-4

Output

!\r\

I START

-1

OF

ODD FIELD

H

BLANK

{11.84/LS ± 50

F 12.3

I I

•

1---------1

4

/Ls ± 50

U U

~I

ns

r-

~Q

ns

180

COLUMN

ns

1132

COLUMN

=

2.33/Ls ± 50ns

H PERIOD = 63.56

-./

j..

/LS ± 50

~

H PERIOD

NOTES: IN EVEN

UOUSLY.

USED.

IN EVEN FIELD.

ALL

SCANS.

u

-...J

ns

~

6356., ± 50

NON-INTERLACED OPERATION THE

FIELD

IS REPEATED

AND

THE ODD FIELD IS NOT

THE INTERLACED OPERATION THE

FIELD ALTERNATES WITH THE

FIELDS CONTAIN

I '---

~n

j..-v

SYNC =

240

rL

27.28

±

NS

CONTIN-

DISPLAYED

/.lS

200

ns

ODD

2-9

INSTALLATION,

NOTE

The use strict To agree put pacitor output. Failing mA quirement presents most fact

NOTE

The external video source must VT100; erencing on

put.

of

decoupling is

agreement

with

load

requires a

in

dc

short

monitors

ac-coupled.

be synchronized to the

it

the

composite

with

RS170.

RS170

series

circuit

is violated. This

no

may

composite

10

with

to

do

so,

current

problem

which

do this

video

the

INTERFACE

2.

3.

4.

5.

not

in

out-

f..LF

ca-

the

the 2

re-

with

are

in

Video An

analog signal applied signal in such a spond at

that

by

ref-

sync

out-

1.

2. Black level = 0 V

3.

4. Maximum continuous input

INFORMATION,

1.

Output impedance Sync level

Black level = approximately

White The composite sync waveform conforms

vertical interval

pulses, and six more equalizing pulses. The

Equalizing pulse

Vertical pulse

Horizontal pulse Horizontal blank

Front Porch

Input

(J8)

way

to

the intensity

= 0 V

level = approximately 1.0 V

width

to

that

the beam intensity

of

that

AND

=

is

composed of six equalizing pulses, six vertical sync

width

the video input

signal which would tend

SPECIFICATIONS

75

ohms, dc-coupled

0.3 V when with a 75

=

2.33

f..LS

=

27.28

= 4.7 1

=

will

f..Ls ± 50

11.84

12.34

1.54

f..LS

be

"ORed"

at

any point on

loaded

with

ohm

to

EIA

RS

170

±50

f..LS

timing

±200

is

ns

f..LS

±50

ns/80

f..LS

±50

ns/132

±50

ns

with

the

to

make the beam brighter

point. This input has the following nominal characteristics.

Input impedance =

White

level = 1.0 V

75

ohms, dc-coupled

=

±2.0

V

75

ohms

load

standards. The

as

follows:

column mode

the internal video

screen

will

corre-

VT100

SPECIFICATIONS

Dimensions

Weight

Environment

Monitor

Keyboard

Monitor Keyboard Shipping

Weight

Operating

Non-Operating

Height:

Width:

Depth: Height:

Width:

Depth: Minimum

13.6

2.0

18.6

Temperature:

36.83

45.72

36.20

8.89

cm (3.5 inch)

45.72

20.32 table depth:

kg

(30

Ibs)

kg (4.5 Ibs)

kg

(41

Ibs)

cm (14.5 inch) cm (18 inch) cm

(14.25

cm

(18

cm (8 inch)

100 to

Relative humidity: 10% Maximum Minimum Altitude:

Temperature:

Relative humidity: 0 Altitude:

wet

dew

2.4

9.1

Km

-400 to

km

bulb:

280 C (820 F)

point: 20 C

(8,000

to

(30,000

inch)

51.4

400 C

to

90%

ft)

660 C

95%

ft)

cm

(20.25

(500 to

inch)

1040 F)

(360 F)

(-400 to 1510 F)

Power

Line

Line Frequency

2-10

Voltage

90-128

180-256

V RMS single phase, 2 wire

V RMS single phase, 2 (switch-selectable) 47-63

Hz

wire

Display

Keyboard

Current

Input Power

Current

limiting

Power cord

CRT Format

Character Character size

Active Display Size Character Set

Cursor type

General

3.0

A RMS maximum

1.5 A RMS maximum

250

VA apparent

3 A

normal

blow

detachable. 3 prong. 1.9 m

12

inch diagonal measure. P4 phosphor

24

lines X acters 7 X 9

3.35 80

column mode

3.35

132 202 96

character displayable ASCII subset (upper-

and

80

characters or

(selectable)

dot

matrix

mm X

2.0

mm

X 1.3

mm column mode mm X 115

lowercase. numeric and punctuation)

150

fuse

with

mm

(0.132

(8 inch x

at

115

V RMS

at

230

V RMS

W maximum

(6

ft)

14

lines X

descenders

inch X

0.078

inch X 0.051 inch) in

4.5

inch)

132

inch) in

char-

Keyboard-selectable. blinking block character or

blinking underline.

83-key detachable

unit

with

a 1.9 m (6 ft) coiled

cord attached

Communication

Key Layout

Auxiliary Keyboard

Visual Indicators

Audible Signals

Type

Speeds

Code Character Format Character

Size

Parity Synchronization

65-key standard typewriter keyboard

arrangement and sculpturing similar

with

an

18-key

auxiliary keypad.

with

18-key numeric pad

enter. and four

general purpose function keys

Seven LEOs; three

period. comma. minus.

LEOs

dedicated

to

ON

LINE.

LOCAL and KBD LOCKED. four LEOs user-pro-

grammable.

Key-click:

1)

sounds upon receipt

sound simulates

typewriter

of

BEL code; 2) sounds

bell:

eight characters from right margin (keyboard-selectable). Multiple bell: sounds upon detection

error in SET-UP save or recall operation.

EIA Full duplex:

50.75.

110

(two

stop bits).

134.5.

150.200.300.600.1200.1800.2000.2400.

3600.

4800.

9600.

19.200

ASCII

Asynchronous

7 or 8 bits;

character is selected.

Even. odd.

Keyboard-selectable

keyboard-selectable. (Note:

8th

bit

is always space.)

or

none - keyboard-selectable

via automatic generation

if

8-bit

XON and XOFF control codes.

to

of

2-11

INSTALLATION,

INTERFACE

HOW

TO

The

following

chased from

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VT100

DIGITAL's Accessory and Supplies Group.

DECscope Video Terminal hardware manuals can be pur-

03060

Title

VT100 VT100 VT100 VT100 VT100

AND

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DOCUMENTATION

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(I

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All correspondence and invoicing inquiries dress.

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shipping and billing addresses and state

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whether

to

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a

2-12

CHAPTER

3

Programmer

Information

.

Terminal Data

3-2

Figure 3-1

Flow

VT100

r---------'

I I

1 I

I I

I RECEIVER

I I

I

TRANSMITTER

I I

L_

_

______

...-:-1

r-TI-------

~

COMMUNICATION LINES

___

'---y---

COMPUTER

---1

(HOST)

MA-1994

PROGRAMMER's

The

VT100 a computer - information entered through is simultaneously an the

computer

terminal normally performs a

output

is

displayed on the video screen. Figure 3-1

device for the computer -

two-part

the

function.

keyboard is sent

CHAPTER

INFORMATION

It

is

an

input

to

the computer.

that

is, data coming in

shows

the

3

device

data flow.

to

from

It

The

ANSI

manual

VT100

standards

will

manufacturer

plementing

This

the implemented functions.

aI/ow

flexibility

each

function.

describes

respond

ANSI

NOTE

the

in

im-

how

to the

control

This section

host. Included are the codes generated by followed

codes and escape sequences, in both ANSI and

The

VT100

of

the user's manual discusses data

by

the

terminal; and the actions and reactions

is

an

upward and

DEC

video terminals have

downward

Institute (ANSI) has since standardized escape se-

flow

between the

the

keyboard; the transmission protocol

of

the terminal

VT52

modes

software compatible terminal;

DEC

private standards

VT100

of

operation.

for

escape sequences.

quences in terminals.

The

VT100

is compatible

with

both

the previous

DEC

standard and

standards. Customers may use existing DEC software designed around

or

new

VT100 VT100 VT100

responds

features cannot be used.

Throughout this section of the "ANSI

mode."

patibility.

Future

DIGITAL

software. The

These

All

new

VT100

to

escape sequences like a VT52. In this mode,

two

terms are used

has a

"VT52

manual references

to

indicate the

compatible"

will

be made

software should be designed around the

video terminals

will

not

necessarily be

committed

VT1

VT100

mode in

most

to

"VT52

OO's

software

"ANSI

to

patibility.

to

the

which

of

the

mode"

VT52

and

the

control

that

is,

ANSI VT52

the

new

or

com-

mode."

com-

3-3

PROGRAMMER'S

INFORMATION

THE

KEYBOARD

The

VT100 typewriter. as VT100

control status.

uses a keyboard

keyboard has additional keys and indicators used

sequences. cursor control commands. and

shown

in Figure

with

3-2.

a key

arrangement

In addition

to

the

to

similar

standard

to

show

to

an

ordinary

typewriter

office

keys

the

generate escape and

the current terminal

ET-UP

G

ONONE

SETI CLEAR ALL LlNEI SETUP

CLEAR

TAB TABS LOCAL

Figure

vn

00

Keyboard

LOLKBD8CKED

3-2

0 0 0 0

TOGGLE

TRANSMIT

AlB

110

LE

D Indicators

RECEIVE

SPEED SPEED

The keyboard has seven to

the

complementary

icitly

shown

and

power

A third has been

is on. one

LEO

indicates a

"turned

by

one

of

off"

RESET

801132 T

COLUMNS

light

ON-LIN E/LOCAL function. The

the

two

of

these LEOs

"keyboard

automatically

host through the transmission

[!][!]EJEJ

emitting

LEOs being on;

of

diodes (LEOs)

will

locked"

by

the

an XOFF

that

be on.

condition. In

terminal due

to

the

of

which

power

is.

if

the

this

to

terminal.

[JFl

[JF2

[JF3

[JF4

two

are

committed

on condition is

impl-

keyboard is connected

condition

a full buffer or by

the keyboard

the

The four remaining LEOs are programmable and can be assigned any meaning specific applications. The code sequences cussed

SET-UP

The SET-UP key is at the upper-left corner

performed in SET-UP turning

The procedures information section

by

the host are listed in Table 3-1 and described in detail under

quences.

Keyboard

The operator uses

one or

3-4

later in

Key

the

terminal

Operation

more

this

to

codes

to

turn

these LEOs on

or

off

are dis-

chapter.

of

the

main key array. Operations

mode

power

can be stored in

off

does not. by itself. alter

nonvolatile

the

memory

(NVR) so

terminal configuration.

change the SET-UP features are provided in the operator's

of

this

the

keyboard

to

the

manual. Those SET-UP features

to

host

immediately

transmit

codes

to

when

typed. Other keys such

which

the

host. Some keys

may

be modified

the

escape se-

transmit as

CTRL

for

that

SET-UP

Table

Features

Machine

3-1

and

States

and SHIFT do other

keys. The

sound

terminal.

to

verify

If transmitted not

wait

for

after

the keys are

codes

for

the

be

transmitted

SET-UP or

Feature

Machine

State

not

transmit

code-transmitting

to

the

two

code-transmitting

according

the

first

when

keys

first

two

to

typed.

keys are

one

codes

operator

the

order

be lifted,

If

transmitted

of

the

Changeable from Computer*

when

typed,

but

modify

keys cause

that

the keystroke has been processed

the

keys are pressed

in

which

the

keys

but

will

transmit

both

the codes

terminal

together,

were

typed. The

codes

transmitted

to

make a clicking

two

codes

terminal

as

soon

as

possible

by

will

by

the

be

will

three such keys are pressed simultaneously, the

first

Host

immediately;

two

keys is lifted.

the

Saved and

Changeable

in

SET-UP

code

in

NVR

for

the

third

will

Alternate keypad mode ANSI/VT52

Auto

Repeat Yes (DECARM) Yes

AUTO XON XOFF No

Bits per character Characters per Cursor No Yes Cursor key mode Graphics mode Interlace New

Line Keyclick Margin Origin mode Parity No Yes Parity sense No Yes Power No Receive speed No Screen Scroll

Tabs Yes (HTS/TBC) Transmit speed Wraparound

£

#

3

• The

line

bell No Yes

(shifted)

appropriate

control

Yes (DECKPAM/DECKPNM) No Yes (DECANM)

No

Yes (DECCOLM) Yes

(DECCKM)

Yes

(DECGON/DECGOFF)

Yes Yes (DECINLM) Yes Yes (LNM) No

Yes (DECOM)

(DECSCNM) Yes

Yes Yes (DECSCLM)

No Yes (DECAWM)

Yes

or

escape sequence

mnemonic

is

indicated

Yes

Yes Yes

No No

Yes

No

Yes

Yes Yes Yes Yes

Yes

in parentheses.

Alphabetic

both the percase) mode. Table

Nonalphabetic two The

Unlike

these keys;

keys and the codes

Keys

- The

of

the

SH I FT

keys are

CAPS LOCK key

Keys different other

codes. One code

code

will

the

SHIFT LOCK key

it

affects only

they

VT100

will

3-2

- Each

be

generated

the

generate.

will

transmit

down,

or

unless the CAPS LOCK key is

lock

only

the

26

shows

the

codes generated

of

the

nonalphabetic keys can be used

will

be generated

if

either

of a typewriter,

or

the

alphabetic keys. Table

the lowercase code unless

down.

alphabetic

keys in the shifted (up-

by

the alphabetic keys.

to

if

both

neither

of

SH I

FT

the

SHIFT keys are

key is pressed.

CAPS LOCK key does

3-3

shows

the

nonalphabetic

either

Pressing

generate

down.

not

affect

3-5

or

PROGRAMMER'S

Alphabetic

Table

Key

INFORMATION

3-2

Codes

Key

Uppercase

Code

(octal)

Lowercase Code

(octal)

A

B

C

D

E 105 145

F 106 146

G

H 110

I 111

J

K 113 153

L

M 115

N 116 156

0

p

Q

R 122 162

S

T 124 164

U 125 165

V

W

X 130 170

y

Z 132 172

101 102 103

141

142

143

104 144

107

147 150 151

112

152

114 154

155

117 157 120 160 121 161

123 163

126 127

131

166

167 171

Nonalphabetic

Table

Key

3-3

Codes

Lowercase Character

1 2

3 4 5 6 7

8

9

0

/

\

....

Neither

Key (Octal)

SHIFT

Down

Uppercase Character

Either SHIFT

(Octal)

061 041 062 063 064 065 066 067 070 071 060 055 075

133 073 047 054 056 057

@

#

$

%

1\

&

+

{

< >

or£

100

043

044 045

136 046 052 050 051

137 053

173 072 042 074 076 077

134 174 140 135

176

175

or

Keys

Both

Down

3-6

Function

Table

Key

3-4

Codes

Function

Keys - There are several keys on the keyboard codes. Control codes functions.

If

these codes are received by the terminal.

associated function as

Octal

Key

Sent

Value

or

do

not

shown

of

Code

Received

produce displayable characters

the

VT100

in Table

by

VT100

3-4.

Action Take

if

The

Host

Terminal

Sent

That

which

Would

Code

transmit

but

are codes for

will

perform the

control

RETURN* LINE FEED

BACK

SPACE TAB SPACE BAR

ESC

Delete

• The RETURN key can be redefined

feature in

NO

SCROLL

015 012

010 011

040

033

177

SET-UP

Key -When

mode

provides

Carriage return

Line Feed Backspace

Tab

function Deposit a space on there before. The initial pret as

a command. rather than displaying it.

Ignored by

so

this

that

it

issues

capability.

015

•

012

8

the NO SCROLL key

the

function

the

screen erasing

delimiter

following

(carriage return - line feed). The

•

8

is

of

an

escape sequence - inter-

the

VT100

character string

from

pressed it generates a single

what

the

New

was

host

Line

XOFF code and inhibits further scrolling. When pressed again the same key generates XON. mitting

until

In practice,

the

if

the

NO

SCROLL key

software recognizes XOFF, the host

is

pressed again

to

allow

will

stop trans-

scrolling.

If

the

XOFF/XON feature is disabled (SET-UP function) the NO SCROLL key causes no

action.

BR

EA K Key its space state for time

is

- Typing

increased

the

0.2333

to

3.5

BR

EAK key causes the transmission line

seconds ± 1 0 percent.

If

either

seconds ± 1 0 percent.

SH I FT

to

key is

be forced

down,

to

the

The function. Used cause both the local and remote data sets connected via the data set

The CONTROL and BREAK keys typed together cause the transmission answerback message.

The BREAK key does

Auto

TAB, RETURN, and any key pressed

(SET-UP function).

code(s) is sent once,

second,

low

SH I FT

and BREAK keys typed together provide the long-break-disconnect

only.

Repeating

the

code(s)

transmit

with

properly configured modems

20

rnA loop, issuing

not

function when the

- All keys

Auto

will

repeating works

the

long space may disconnect the remote

auto

repeat except: SET-UP,

with

CTRL.

immediately. If the key is held

will

be sent repeatedly at a rate

to

as

with

RS232-C

disconnect. For

VT100

is in LOCAL mode.

Auto

repeating may be disabled

follows:

when down

of

approximately

baud rates are used) until the key is released.

levels,

modems

ESC,

NO

it

will

that

are

of

the

SCROLL

a key is typed, its for

more than

30

Hz

1/2

(less

3-7

if

PROGRAMMER'S

Control

Table

Codes Generated

INFORMATION

CTRL

(Control)

keyboard keys in

0008-0378.

3-5

Key CTR L (shifted (unshifted)

Space A

B C

D 004

E 005

F G

H 010

I

J 012

K 013

L 014

M 015

N 016 a

P 020

0

R S 023 T 024

U 025 V 026

W 027

X 030 Y

Z

[

\

J

? 037

to

Table

Pressed

key

down

or

Bar

generate control codes.

with

Key

- The CTRL key

3-5

are typed,

Octal Transmitted

000 001 002 003

006 007

011

017 021

022

031

032

033 034 035 036

Code

is

used

If

the

code actually

in

conjunction

CTRL key is held

transmitted

Function Mnemonic

NUL SOH STX ETX

EaT ENO ACK

BELL

BS

HT

LF VT

FF CR SO SI

DLE

DC1

or

XON DC2 DC3

or

XOFF DC4 NAK

SYN

ETB

CAN

EM

SUB

ESC FS GS RS US

with

down

other

when is in

keys on the

any

of

the

range

Cursor

in

each oes these escape sequences back ter up, each key.

3-6

Cursor

Control

Table

Key Codes

Cursor

(arrow)

Up Down Right Left

3-8

Control

of

four

down,

Key

Keys - The keyboard also contains four keys labeled

directions. These keys

right,

or

left. Table

VT52 Mode

ESCA ESC

ESCC

ESC

B D

ANSI Key

Mode

ESC[A ESC

[B

ESC

[C

ESC

[D

Mode

to

the

3-6

and

Reset

transmit

terminal,

shows

Cursor

escape sequences.

the

cursor

will

the

escape sequences generated by

ANSI

Mode

and

Set

Key

ESCOA ESC

a B ESCOC ESCO

D

If

move

Cursor

with

arrows

the

host ech-

one charac-

Auxiliary Keypad - The keys on

for

the numerals. decimal point.

labeled ENTER

if

these keys

keys

on

the

meric

data

transmits

were

typed

the same code

on

the

main keyboard. Therefore.

entry

need

not

be

rewritten

the

auxiliary keypad

minus

sign. and

as

the

auxiliary keypad

software

to

use

normally

comma.

In addition.

RETURN key. The

as

which

the

opposed

keypad.

to

requires considerable nu-

transmit

host

cannot

the

corresponding

the

codes

key

tell

Auxiliary

Table

VT52

Keypad Codes

3-7

Mode

However. auxiliary keypad and pressing

instance.

if

software

the

host

must

can give

be able

the

terminal a command cation mode. In keypad application defined

to

give escape sequences

which

functions.

The codes sent by VT52/ANSI

and

3-8.

mode

None

the

auxiliary keypad

and keypad

of

the keys are affected by pressing

numeric/application

CONTROL keys.

Key

0

1

2

3

4

5

6

7

8 9

ENTER

PF1

PF2

PF3

PF4

Keypad Numeric

0

1

2

3

4 5

6

7

8 9

Same

as RETURN ESC P ESCQ ESCR ESC S

Mode

Keypad

Application

ESC? ESC? ESC? ESC? ESC? t ESC? ESC? ESC ESC? ESC?

ESC? ESC?

key

ESC?

ESC P ESCQ ESC R

ESCS

ESC?

to

distinguish

between

corresponding key on

to

mode

all keys on

may

be used

for

the

by

four

mode

the

Mode

p

q

r s

u v

?w

x y

m I n M

pressing a key on

the

main

keyboard

place

it

in keypad appli-

the

auxiliary keypad are

the

host

as user-defined

combinations

are

shown

of

in Tables

SHIFT. CAPS LOCK.

the

for

the

3-7

or

Table

3-8

Mode

Key

Auxiliary

ANSI

Keypad Codes

o

1

2

3

4

5

6 7

8 9

In

ANSI

are

VT100, local of played PF1

mode,

echoed mode, the

the sequence

will

back

or

if

the

last

on the screen; e.g.,

display a

if

the codes

to

terminal

character

will

be dis-

liP.

II

NOTE

the

is in

ENTER

PF1 PF2 PF3 PF4

Keypad Numeric

o

1

2

3

4

5

6

7

8

9

Same

as RETURN ESC 0 P ESCOQ ESCO ESCO

R S

Mode

Keypad

Application

ESCO ESCO ESC 0 r ESC 0 s ESC 0 t ESCO ESCO ESCOw ESCO ESC ESCO ESC 0 I ESC 0 n

key

ESCO ESC 0 P ESCO ESCO ESCO

Mode

p

q

u v

x

Oy

m

M

Q R S

3-9

PROGRAMMER'S

INFORMATION

Special

Graphics

Table

3-9

Characters

Special If 1768 will

Octal Code

137 140 141 142 143 144 145 146 147 150 151 152 153

154

155 156 157 160 161 162

163 164 165

166 167

170

171

172

173

Graphics

the

Special Graphics set

be replaced according

174

175

76

Characters

Graphic US

or

UK

a b

c

d

e

g

h

j

k

m n

o

p q

5

u v

w

x

y

z

is

selected, the graphics for ASCII codes

to

Table 3-9. (See the SCS escape sequence.)

With

Set

Graphic

"Special

Blank

with

Graphics"

t Diamond

."

Check board (error indicator)

If

HT (horizontal tab)

FF

(form feed)

~

CR

(carriage return)

~

LF

(line feed)

o Degree

symbol

± Plus/minus ±

~

N L (new line)

'f VT (vertical tab)

.J

Lower-right corner

, Upper-right corner

i Upper-left corner

L Lower-left corner

+ Crossing lines

Horizontal line

-

Horizontal line - Scan 3

-

Horizontal line - Scan 5 Horizontal line - Scan 7

Horizontal line - Scan 9

I-

Left

HI"

-I

Right'T'

.L

Bottom

'T

Top'T'

I Vertical Bar

~

Less than or equal

~

Greater than or equal

TI'

Pi

(mathematical)

¢

Not

equal

£

UK

pound sign

Centered

- Scan 1

"I"

to

dot

Set

to

1378

through

NOTE

NOTE 2:

COMMUNICATION

PROTOCOLS

Full The terminal can operate at transmission speeds up terminal may incoming characters in a out transmit

sion

deplete

transmit 0218 (XON or DC1)

3-10

1:

Codes

1528-1

grids; each piece

lines formed are unbroken.

Codes

1578-1638 giver

when

drawing

obtained in

•

56

161

8

of

this line

graphs; using these segments

132

column

mode

Duplex

not

be

able

64

basis. When the content

023

(XOFF

8

to

the terminal. Eventually, if

the

buffer. When

or DC3).

•

and

1648-1708 are used

8

drawing

set is contiguous

better

vertical resolution than dashes and underlines

with

the

to

keep up

120 X 132

Advanced Video Option installed.

with

to

draw

with

rectangular

others so

resolution

to

19,200

that

the

may

be

baud. However, the

incoming data. The terminal stores

character buffer and processes them on a first-in/first-

of

the buffer reaches

On

this signal the host should suspend

the

host stops transmitting, the terminal

16

characters remain in the buffer

to

signal the host

48

characters, the terminal

that

it

may resume transmission.

the

its

transmis-

terminal

will

will will

If

the host fails buffer ceeded. a condition occurs overflow

No.

Time

Example 1:

The

ceiving at respond

No.

Time

Example 2:

The at within

will

of

characters

to

respond

VT100

to

of

characters

to

respond

VT100

1200

baud. The terminal has

0.0333

to

respond

continue to fill.

use the

1200

following

to

overflow

to

XOFF = No.

is

transmitting

baud. The terminal has

within

0.1083

to

overflow

to

XOFF =

is transmitting

second

to

an XOFF from the terminal in a

When

called

formulas:

8-bit

second

7-bit

avoid a buffer overflow.

the 64-character capacity

"buffer

=

16

(bits per character + parity

characters

to

=

16

13 X (8+0+2)/1200

characters

just

overflow."

- [3 X (receiver

of

characters

bit

+ 2)/receiver speed

with

no parity

just

sent

avoid a buffer overflow.

- [ (3 X

sent an XOFF

1200/1200)

with

parity

which

to

an

timely

of

the buffer is ex-

To determine

speed/transmit

overflow X

at

XOFF

I =

=

0.1083

at

300

the host must respond

if

the buffer

speed) I

1200

baud and re-

which

the host

13

characters

second

baud and receiving

manner. the

will

must

to

No.

of

characters

Time

to

respond

If

the buffer overflows. the

the

error character

Software nal can still use

terminal. the baud rate is limited

smooth

Two

erase the buffer. This means commands buffer. the character

To compensate for this. the host may act in one

which

scrolling or split screen features.

of

the terminal functions. Reset and Self-Test. reinitialize the terminal and

1 .

to

overflow

to

XOFF = 4 X (7 + 1

will

does

not

the

VT100

to

perform these

would

Immediately after sending the Reset or XOFF from the ceives XON. The specified operation and

=

16

VT100

be displayed.

support receipt

provided the software never sends the

to

that

two

functions and the characters are placed in

be destroyed

Self-Test functions. the host may act

terminal.

terminal

the

- [ (3 X

will

4800

if

characters are received subsequent

the

thus

will

1200/300)

+2)/1200 = 0.0333

begin

to

of

the

XOFF/XON signals

or less. and the

without

terminal

sending no more characters until

transmit

XOFF/XON feature is enabled.

I = 4 characters

second

discard incoming characters and

from

the

termi-

ESC

code

to

the

software

being processed.

of

two

ways:

the

commands

as

XON only after

does

not

to

perform either

if

it

had received

it

completes

to

it

use

the the

re-

the

2.

When the first

10

seconds may be used invoked function. This method. however. does the

loss

while

this delay is currently adequate. future

change in the

of

data

method

when

time

delay.

cannot be implemented. a delay

to

allow

an invoked function has detected an error; and

the terminal

of

no less than

time

to

complete

not

guarantee against

options

may

the

require a

3-11

PROGRAMMER'S

INFORMATION

The XOFF/XON synchronization scheme has an advantage over requiring to

insert delays software the timing

support, XON/XOFF ensures

VT100

considerations and results in more reliable operation.

In addition XOFF and XON; the enabled,

the the desired effect occurs. For example, XOFF

to

be sent, and then the operator types the NO SCRQLL key, a second XOFF

is

not

sent. Instead

until the operator types the

Also, entering SET-UP mode causes ters from the buffer. An

Use

of

Control S and Control Q

or

filler characters in its data stream. Requiring a

that

will

be processed in correct order.

to

the buffer-filling condition, there are

NO

SCROLL key, and Control

VT100

will

coordinate these three sources

if

the

of

sending an XON

NO

SCROLL key again before sending XON.

XOFF

will

when

the

VT100

be sent

will

also be synchronized

minimum

every character

It

frees interface programs from all

two

S/Control

or

command

other

means

Q.

If

of

XOFF and XON so

of

transmitting

XOFF mode is

buffer-filling condition has caused

the

buffer empties,

to

temporarily stop taking charac-

if

the buffer becomes nearly full.

with

the

VT100

the

NO SCROLL

key.

If

the

XOFF feature is disabled, the buffer-filling condition

the NO SCROLL key is disabled, and Control S and Control Q

will

not

send an XOFF,

will

be transmitted

as typed.

VT100

The the

VT100 seven keystrokes on the keyboard transmit keyclicks upon receipt

also recognizes received XOFF and XON. Receipt from

transmitting

two

or

three codes, e.g., cursor controls).

will

stop and the KBD LOCKED LED of

XON.

any codes except XOFF and XON. From three

will

be stored in a keyboard

If

the

will

come on. Transmission resumes

of

keyboard

XOFF

buffer

(some keys

the

host

of

sent

to

that

an

waits

will

inhibit

to

overflows,

COMMANDS

Control

TERMINAL

CONTROL

Characters

Table

3-10

Characters

If

the

user transmits an XOFF

not

should

burden

Entering and exiting

VT100

The

echo any further type-in until the user types XON. This places the

of

not

overloading the host's

SET

has many control commands displaying a character on the screen. terminal

to

move the cursor, .change modes, ring the bell, etc. The

to

the host (by Control S

-U P clears

output

the

transmit

which

In this way,

buffer on the user.

graphs discuss the terminal control commands.

Control characters have values recognized no action

Control Character

NUL

ENQ

by

the

to

be taken.

Octal Code

000

005

VT100

of

0008 -0378,

are

shown

Action

Ignored on

tocol). Transmit answerback message.

in Table

Taken

input

3-10.

(not stored in input buffer;

or

NO

SCROLL),

the

host

and keyboard locked modes.

cause

it

to

take action other than

the

host

can

command

following

the

para-

and 1778. The control characters

All

other

control codes cause

see

full

duplex pro-

BEL

3-12

007

Sound bell tone from keyboard.

Control

Table

3-10

Characters

(Cont)

Control Character

BS

HT

LF

VT

FF CR SO SI XON XOFF

CAN

SUB

Octal Code

010

011

012

013 014 015 016 017 021 023

030

032

Action

Taken

Move

the cursor

left margin. in which case Move the cursor

further tab stops are present on This code causes a line feed

mode.) Interpreted Interpreted Move

cursor

G 1 character set.

Select Select

GO

terminal

Causes

terminal

Causes XON.

If

sent during an escape or control sequence. the sequence is immediately character

Interpreted

to

the

left one character position. unless

no

action

to

the

stop. or

the

or a new

as

LF.

as

LF.

to

left margin on the current line.

as

selected

character set. as selected by

to

resume transmission.

to

stop

transmitting

terminated and

to

be displayed.

as

CAN.

not

executed.

it

occurs.

to

the

"ESC)"

"ESC("

It

also causes

right

sequence. sequence.

line.

line operation. (See

by

all codes except XOFF and

is at the

margin

new

the

if

no

line

error

Escape Sequences

Table

VT100

Sequences

3-11

Escape

Summary

ESC DEL

Table

3-11

Cursor Up

Down

Cursor Cursor Right Cursor Left Select Special Graphics character set Select ASCII character set

to

Cursor Reverse I ine feed

to

Erase

to

Erase Direct cursor address Identify Enter alternate keypad mode

alternate keypad mode

Exit Graphics processor on Graphics processor Enter

ANSI

NOTE 1: Line and

NOTE 2: Response

NOTE

3: Ignored

033

177

provides a summary

home

end

of

screen

end

of

line

off

mode

character codes

Line and column numbers start at

VT100.

column

whose

to

ESC

if

no graphics processor option

Introduces Ignored on

VT52

numbers for direct cursor address are single

values are the desired

Z is

ESC

of

Compatible

1.

/ Z

an

escape sequence.

input

(not stored in

the

VT100

Mode

ESCA ESC

B

ESC

C

ESC

D

ESC

F ESCG ESC

H ESC

I ESCJ ESC

K ESC

Vic (see note

ESC

Z (see note 2)

ESC

=

ESC> ESC

1 (see note 3) ESC

2 (see note 3)

ESC

<

number

is

installed in

input

buffer).

escape sequences.

1)

plus

37

.

8

the

3-13

PROGRAMMER'S

ANSI

Compatible

Pn refers to a eter

expressed

ASCII

digits. eters are semicolon character a

parameter

specified to

parameter

the cursor mands, the default value

is

decimal

Multiple

separated

is

be

value is used. For

movement

1.

as

a string

(0738).

omitted

0 the

parameter

paramparam-

by

default

INFORMATION

Mode

NOTE

of

the

or

com-

Cursor

Cursor up Cursor Cursor forward (right)

Cursor backward (left)

Direct cursor addressing

If

Index Reverse index Save cursor and attributes Restore cursor and attributes

t

Movement

down

PI

= line number;

Commands

Pc

= column number.

ESC

[Pn

ESC [ Pn

ESC

[Pn

ESC

[Pn ESC [ PI; ESC[

PI;

ESC

0 ESCM ESC7 ESC8

A B C 0

Pc Pcft

H t or

Line Size

Change Change Change this line Change this line to double-width single-height

Character

ESC

Ps

refers to a selective parameter.

(Double-height

this

line

this

line to double-height

Attributes

[ Ps;Ps;Ps;

and

Double-width)

to

double-height

top

half

bottom

to

single-width single-height

...

;Ps m

Multiple

Commands

ESC#

3

half

ESC#

4

ESC# 5 ESC#

6

parameters are separated by the semicolon character (0738). The parameters are executed in order and have the following meanings:

o

or

None All

Attributes

Off

1 Bold on

4 Underscore on

5 Blink on

7 Reverse video on

other

Any

Erasing

From cursor From beginning Entire From cursor From beginning Entire screen

parameter values are ignored.

to

end

of

line

of

line

to

cursor

line containing cursor

to

end

of

screen

of

screen

to

cursor

ESC ESC ESC ESC ESC

ESC

[ K or [ 1 K [2

K [ J or [ 1 J

[2

J

ESC

[ 0 K

[ 0 J

Programmable

ESC [ Ps;

Ps

are selective parameters separated by semicolons (0738) and executed in or-

der,

Any

3-14

LEOs

Ps;

...

Ps

q

as

follows:

o

or

None

1

2

3

4

other

parameter values are ignored.

All LEOs LED # 1 LED

# 2

LED

# 3

LED

# 4 On

Off On On On

Character The

GO

and G 1 character sets are designated

Character

Sets

set

(GO

and G 1

Designators)

GO

designator

as

follows:

G1

designator

United Kingdom (UK) United Special

Alternate character

States (USASCI!)

graphics characters

and

line drawing set

RO

M

Alternate character ROM

special

Scrolling

ESC

Pt

is

bottom

Tab

Set

Clear

graphics characters

Region

[ Pt ;

Pb

r

the

number

line

of

the scrolling region and

Stops:

tab

at

current column

tab

at

current colu mn

of

the top line

Clear all tabs

Modes

Mode

Name

Mode

of

To

the

ESC ESC ESC

Set

ESC(A

ESC

(8

ESC(O

ESC

( 1

ESC

(2

scrolling region;

must

be greater than

H

[ g or

ESC

[ 0 g

[3

g

Sequence

Mode

ESC)A ESC) 8 ESC) 0

ESC)

1

ESC) 2

Pb

is the number

Pc.

To

Reset

Sequence

of

the

Line

feed/new

line

Cursor key mode

ANSI/VT52

mode ANSI

Column mode

New line

Application

132

Col Scrolling mode Smooth Screen mode Origin mode

Wraparound

Auto

repeat Interlace Graphic proc. option Keypad mode

Reverse Relative

On On On

On Application

Reports

Cursor

Invoked by

Response is

Position

Report

ESC ESC [ PI ; Pc R (PI number)

Status

Invoked by

Response is

Report

ESC ESC ESC

Line feed Cursor

VT52

80

Jump

Normal

Absolute

Off Off

Off

Numeric

[6

ESC ESC[?1h N/A ESC ESC ESC ESC

ESC ESC ESC

ESC

n

[20h

[?3h [74h

[?5h [?6h [77h Off [?8h [?9h

1

=

= line number and

[5

n [ 0 n (terminal ok) [ 3 n (terminal not ok)

Col

ESC ESC

ESC

ESC ESC ESC ESC

ESC

ESC ESC

ESC>

[201 [?11 [721 [?31 [?41 [?51 [761 [?71

[781 [791

2

Pc

= column

3-15

PROGRAMMER'S

INFORMATION

What

Are

You

Invoked

Response

Ps

Alternately

Reset

Reset causes the power-up reset routine to be executed.

by

is

is the

"option

Ps

present"

Meaning

o Base

1 Processor 2 Advanced video 3 AVO and STP 4 Graphics processor 5 6 7

GO GO GO.

invoked by

ESC

parameter

VT100.

option

and STP and AVO

STP. and AVO

ESC

Z (not recommended). Response is

[c

or

[0

[?1 ; Ps

no

options

(STP)

option

c

with

(AVO)

option

c

the following meaning:

(GO)

the

same.

ESC

c

Confidence

Fill Screen Invoke Test(s)

Ps

is

the

puted by taking the

together.

Test

Power-up self test

(ROM checksum. RAM. NVR.

keyboard and Data Loop Back Repeat (until failure or

Tests

with

"Es"

parameter indicating

"weight"

AVO

if

installed)

selected test(s) indefinitely

power

off)

ESC

# 8

ESC

[2 ; Ps

the

test

indicated for each desired

y

to

be done and is a decimal

Weight

2 (Loop back connector required)

8

number

test

and adding them

com-

3-16

Mode

Escape

Valid

ANSI

Sequences

(Detailed)

Definitions

escape sequences. A more complete listing appears in Appendix A.

- The following listing defines

the

basic elements

of

the

ANSI

mode

• Control Sequence Introducer (CSI) -

supplementary controls and is itself a prefix affecting the interpretation a

limited

• Parameter - (1) A string sent a

• Numeric Parameter - A string ignated

• Selective Parameter - A string from a specified trol sequence effect as e.g., CSI Psa; Psb;

Ps

with

• Default - A function-dependent value value,

• Final Character - A character whose or

number

single value; (2) The value so represented.

by

several control sequences, each

is

a string

each selective parameter separated from the other

or

a value

control sequence.

Pn.

of

contiguous characters.

of

one

of

Pn

has a range

list

of

subfunctions, designated by

with

more than one selective parameter causes the same

Psc

F is identical

of

zero

or

more characters

of

0, is specified.

An

escape sequence

In

the

VT100

or

more decimal characters

characters

of

0 (60s)

of

characters

bit

that

represent a number, des-

to

9 (71s).

that

with

one selective parameter,

to

CSI

Psa

F CSI

with

a range

that

is

assumed

combination terminates

that

the CSI

selects a subfunction

Ps.

In general. a con-

Psb

of

0 (60s)

by

when

is

which

F CSI

to

; (73s).

no

an

provides

of

ESC

[.

repre-

Psc

F.

9 (71s)

explicit

escape

CPR

Example:

delimiter

selective

parameter

I

~~h

C~I

Parameter

String

• Escape Sequences - All of the transmitted from the host

All

of

the

escape sequences are a subset

1977

and ANSI X 3.41

Cursor

Format:

Position

ESC [

Report -VT100

Pn;

Pn R

I

Final

Character

computer

1974.

default

following

to

Host

escape and control sequences are

to

the

of

values:

VT100

those specified in

unless otherwise noted.

ANSI X 3.64

1

The sequence has

CPR

sequence reports

two

the

active position

parameter values, the

by

means

first

specifying the line and the second

of

the parameters. This

3-17

PROGRAMMER'S

INFORMATION

CUB

CUD

specifying the column. The default condition

of

0,

is

the

made

margin.

equivalent

of

lines depends on the state

format:

left

margin, the cursor stops

format:

to

move

rameters

The numbering

This control sequence

host.

Cursor Editor

The determined by the parameter. position is moved one position position is moved n positions to

Cursor

Editor

The

umn position. The number parameter value is zero the parameter value is n, the active position is moved n lines downward. attempt

the

Backward -Host

Function;

CUB sequence moves

the left

of

Down -Host

Function;

CUD sequence moves the active position

is

bottom

to

a cursor at home position.

is

solicited

ESC [ Pn D

the

to

VT100

ESC [ Pn B

of

or

one, the active position is moved one line downward.

the

by

a device status report (DSR) sent

to

VT100

active position

If

the parameter value is zero

to

the left. If the parameter value is

to

the left.

and

lines moved is determined by the parameter. If

cursor

below

and

VT100

If

an

VT100

the

with

no parameters present, or pa-

of

the Origin Mode (DECOM).

to

Host

default

to

the

left. The distance moved is

attempt

at

the

left margin.

to

Host

default

downward

bottom

value:

is made

value: 1

without

margin, the cursor stops

1

or

one, the active

to

move the cursor

altering the col-

from

n,

the active

If

the

If

an

at

CUF

CU P Cursor

Cursor

Editor

CUF sequence moves the active position

The determined position one position n positions

right margin, the cursor stops

Editor

The

CU parameters. This sequence has position and the second specifying the column position. A parameter value or

one for the first or second parameter moves the active position

column in the display, respectively. The default condition

sent is

identically

The numbering

Forward -Host

Function;

Position

Function;

P sequence moves the active position to the position specified by the

equivalent

with

format:

by

the parameter. A parameter value

to

the right.

format:

to

its

format

of

lines depends on the state

to

VT100

ESC [ Pn C

to

the right. A parameter value

If

an

attempt

ESC [ Pn; Pn H

a cursor

to

effector counterpart, HVP.

and

VT100

is

made

at

the right margin.

two

parameter values, the first specifying the line

home action. In the

to

Host

defau

It

va lue: 1

to

the right. The distance moved is

of

zero

or

one moves the active

of

n moves the active position

to

move the cursor

default

VT100,

of

the Origin Mode (DECOM).

to

the

right

value:

to

the first line

with

no parameters pre-

this control behaves

of

1

of

zero

the

or

3-18

CUU

Cursor

Up -Host

to

VT100

and

VT100

to

Host

Editor

Moves the active position upward

ber one moves active position n top

DA

Device format:

Function;

of

lines moved

margin, the cursor stops

format:

the

active position one line upward. A parameter value

lines upward.

Attributes

ESC [ Pn c

1.

The host requests sequence either no parameter

2. Response by

the

VT100

as

follows:

Option

No

Processor Advanced video option AVO Graphics GO GO GO, STP,

Present

options

and STP

and STP and AVO

ESC [ Pn A

without

is

determined by the parameter. A parameter value

If

an

attempt

at

the

default

the

VT100

to

identify itself by sending the

or

a parameter

to

the request described above

as a

DA

control sequence

option

and AVO

(STP)

(AVO)

(GO)

altering the column position. The num-

is made

top

margin.

value: 0

to

send a device attributes (DA) control

of

default

to

O.

(VT100

with

Sequence

ESC ESC ESC

ESC

ESC ESC ESC

ESC

value: 1

move the cursor above

DA

control sequence

to

host) is generated

the numeric parameters

Sent

[71

;Oc [71; 1 c [71

;2c

[?1

;3c

[71;4c [71

;5c [? 1 ;6c

[?1

;7c

of

zero or

of

n moves the

the

with

DECALN

DECANM

DECARM

Screen

Format:

This alignment. This sonnel.

ANSI/VT52

This is a private parameter applicable control sequences. The reset state causes only quences patible"

Auto

This is a private parameter applicable control sequences. The reset state causes no keyboard keys set state causes certain keyboard keys

Alignment

ESC

command

to

be interpreted and executed. The set state causes only ANSI

escape and control sequences

Repeat

#8

fills

command

Mode

Display

the

(DEC Private)

entire screen area

is used by

(DEC Private)

with

uppercase

DEC

manufacturing and Field Service per-

to

set mode (SM) and reset mode (RM)

VT52

to

be interpreted and executed.

to

set mode (SM) and reset mode (RM)

to

auto-repeat.

Es

compatible escape se-

for

screen focus and

to

auto-repeat. The

"com-

3-19

PROGRAMMER'S

INFORMATION

DECAWM

DECCOLM

DECCKM

Autowrap

This is a private

control sequences. The reset when set state causes these characters

scroll

Column

This is a private control sequences. The reset state causes a screen. The set state causes a

Cursor Keys

This is a private control sequences. This application mode (see DECKPAM) and (see DECANM). cursor is

set

Mode

the cursor is

up

if

required and permitted.

Mode

function

the

four

(DEC Private)

parameter

at

the

(DEC Private)

parameter

Mode

(DEC Private)

parameter

Under

keys

will

cursor function keys

applicable

state

causes any displayable characters received

right

margin

apPlicable

applicable

mode

these conditions,

send

ANSI

to

advance

maximum

is only effective

cursor control commands.

will

to

set

replace any previous characters there. The

to

set mode (SM) and reset

of

to

set mode (SM) and reset

the

if

the

send application functions.

mode

(SM) and reset mode (RM)

to

the

start

of

maximum

132

columns on

when

ANSI/VT52

cursor key mode is

of

the

mode

the

next line, doing a

mode

80

columns

the

screen.

mode

terminal

is in keypad

(DECANM)

reset

If

cursor key mode

on

the

(RM)

the

(RM)

is set

four

DECDHL

Double

Format:

Height

Top

Line (DEC Private)

Half:

Bottom

These sequences cause or

DECDWL

bottom

in pairs on adjacent

to

form characters the same character position unless which

Double-Width

Format:

This causes single-height. of

the

position

moved

half

full

double-height

to

the

case

it

is moved

ESC

the

If

center

unless

to

the

of

right

of a double-height

right

Line (DEC Private)

#6

line

the

it

would

DECGOFF Graphics Processor

ESC

#3

Half:

ESC

#4

the

line containing the active position

double-width

lines and

of

that

line

screen are lost. The cursor remains over

margin.

Off

the

same character

characters.

the

center

to

the

contains the active position

was

single-width

be

to

right

the

If

the

of

the

it

would

margin.

right

(DEC Private)

line. The sequences

output

line

was

screen are lost. The cursor remains

be

to

single-height

of

the

right

must

single-width

the

right

to all characters

margin, in

to

become

be sent

single-height

of

the

become

the

which

the

top

must

be used

to

both

lines

all

over

right

margin, in

double-width

to

the

right

same character

case,

it

is

Format:

Turn

NOTE: TABS.

3-20

off

Some

ESC 2

the

graphics processor.

DEC

hardcopy

terminals

interpret

this

private

escape sequence as CLEAR

DECGO

N Graphics Processor On

Format: ESC 1

All

subsequent processor option. The sor

off

command

option

NOTE:

is installed.

Some

characters are

terminal

is received. This

DEC hardcopy

(DEC

Private)

interpreted will

terminals

remain in command

interpret

as

commands

this

is ignored

this

private

or

data

to

the

mode

until

the

graphics proces-

if

no graphics processor

escape sequence as SET TAB.

graphics

DECHCP

DEClO

DECINLM

Hard Copy

Format: ESC

This causes

enabled. The screen

completed. This

Identify Terminal

(DEC

#7

the

screen

Private)

command

(DEC

Format: ESC Z

This sequence causes sequence

used by any

Interlace

This is a private control display sor tion.

will

not

be supported in future DEC terminals, therefore,

new

software.

Mode

sequences. The reset

240

to

display

(DEC

parameter

scan lines

480

scan lines per frame. There is no increase in character resolu-

to

cease

updating

will

resume normal operation

is ignored

if

no hard copy

Private)

the

same

response as the

Private)

per

frame. The

applicable

state

to

(non-interlace) causes

set

and freeze

set

state (interlace) causes

ANSI

mode

while

when

option

device

(SM)

the

hardcopy

the

hardcopy has been

is installed.

attributes

and

the

output

(DA). This

DA

should be

reset

mode

(RM)

video processor

the

video proces-

is

to

DECKPAM

Keypad Application

Format: ESC =

The auxiliary keypad keys and

DECKPNM

Keypad Numeric

Format: ESC >

The auxiliary keypad keys engraved on

Mode

the

keys. The cursor control keys

(DEC

Private)

cursor

(DEC

will

control

Private)

send ASCII codes corresponding

keys

will

transmit

will

send cursor controls.

escape sequences.

to

the

characters

3-21

PROGRAMMER'S

DECLL Load LEOs (DEC Private)

INFORMATION

DECOM

Format:

Load

LED numbers are indicated on

Origin

This is a private parameter applicable

control sequences. The reset state causes ter margin settings. The cursor position

The set state causes

margins. Line numbers are therefore relative cursor is

ESC I

the

four programmable LEOs on the keyboard according

Parameter

o

1

2

3

4

Mode

position on

(CUP) or horizontal and vertical position (HVP) control.

not

Ps

q

Meaning

Clear LEOs # 1 through 4

Light Light LED Light LED Light LED

(DEC Private)

the

screen. Line

the

origin

allowed

to

be positioned outside the margins.

default

LED

# 1

#2 #3 #4

the

keyboard.

to

the

numbers

may

be positioned outside

to

be

at

the

set mode (SM) and reset mode (RM)

upper-left character position

value: 0

to

the

parameter(s).

origin

to

be

at

the

upper-left

are therefore independent

the

to

margins

the

current margin settings. The

with

charac-

of

current

a cursor

within

the

DECRC

DECREPTPARM

DECREQTPARM

to

the

new

home

The cursor is moved

Lines and

umn

Restore

Format:

This sequence causes

character set

Report

Format:

These sequence parameters are explained quence.

Request

Format:

columns are numbered consecutively,

1.

Cursor

(DEC

Private)

ESC 8

the

previously saved cursor position, graphic rendition, and

to

be restored.

Terminal

ESC I

Parameters

ESC I

<sol>;

<rspeed>;

Parameters

<sol>

<par>;

<clkmul>;

x

position

<nbits>;

<flags>x

when

with

<xspeed>;

below

in

this

mode

is set

or

reset.

the

origin being line 1, col-

the 0 ECREOTPARM se-

The sequence OECREPTPARM is sent

of when upon receipt

3-22

the

status

requested by

of

selected

of

a OECREOTPARM.

the

terminal

host

or

by

the

terminal

parameters. The status sequence may be sent

at

the

terminal's

discretion. DECREPTPARM is sent

controller

to

notify

the

host

The meanings

of

the

sequence parameters are:

Parameter

<sol>

<par>

<nbits>

o

8

16 24 32 40 48 56 64 72 80

88

96

104

112

120

Value

o

or

none This message is a request (DECREQTPARM) and

2

3

1

4

5

1

2

Bits per second

Meaning

the

terminal

ports.

This message is a request; from

may

only report in response

This message is a report (DECREPTPARM).

This message is a report and the

reporting on request.

No

pa rity set Parity is set and odd Parity is set and even

8 bits per character 7

bits

will

be allowed

per character

to

send unsolicited re-

now

on the terminal

to

a request.

terminal is only

50

75

110

134.5

150 200 300 600

1200

1800 2000 2400 3600 4800 9600

19,200

<flags>

DECSC

Save

Format:

This sequence causes

be saved. (See DEeRC.)

Cursor

ESC 7

0-15

(DEC

Private)

the

cursor position,

The

bit

rate mUltiplier is 16.

This value block 5 of

user be assigned for an STP device. The four bits are a decimal-encoded binary number.

communicates

SET UP

when

an STP option is installed. These bits may

graphic

the

four

switch

B,

which

rendition, and character set

are only visible

values in

to

the

to

3-23

PROGRAMMER'S

INFORMATION

DECSCLM

DECSCNM

DECSTBM

Scrolling

This is a private parameter applicable control sequences. The reset state causes scrolls

set state causes

Screen

This is a private parameter applicable control sequences. The reset state causes the screen to be black

acters. The set state causes the screen

Set

Format:

This sequence sets the first parameter is the parameter is the

the entire screen (no margins). The

two

Mode

Top

and

(DEC

Bottom

ESC [ Pn; Pn r

lines, i.e., the

(DEC

Private)

scrolls

to

be

Private)

Margins

top

line number

top

margin

"smooth"

(DEC

and

bottom

of

the

must

to

set mode (SM) and reset mode (RM)

to

"jump"

at

a maximum rate

to

set mode (SM) and reset mode (RM)

to

be

white

with

instantaneously. The

of

six lines per second.

black characters.

Private)

default

margins

the first line in the scrolling region: the second

bottom

minimum

be less than the

values: (see

to

define the scrolling region. The

line in the scrolling region. Default

size

of

the scrolling region allowed is

bottom

below)

margin.

with

white

char-

is

3-24

DECSWL

DECTST

Single-width

Format:

This causes the line single-height. The cursor remains on the same character position. This is the default condition

Invoke

Format:

Ps

is the parameter indicating the test

weight

is performed but the VT

indicated for each desired

Test

Power checksum, RAM, NVR keyboard and Data Loop Back

Repeat indefinitely (until failure power

Line

ESC

#5

for

Confidence

ESC [ 2 ;

up

self-test

AVO

Selected Test(s)

off)

(DEC

which

all

Test

Ps

y

100

if

installed)

Private)

contains the active position

new

lines on the screen.

to

be done.

test

and adding them together.

is reset.

Weight

(ROM

2 (loop-back connector required)

8

or

to

become single-width

Ps

is computed by taking the

If

Ps

is 0 no test

DSR Device Status Report

Format:

Requests

parameter(s).

ESC [

and

reports

Ps

r default value: 0

Parameter

o

3

5

6

DSR

with a parameter

DSR

with a parameter

ED Erase In Display

Editor Function; format: ESC [

the

value

general

of 0 or

of

status

5.

Ps

of

the

VT100

Parameter Meaning

Response

3 is

functions

Response retry Command

tus

Command tive quence)

always

detected

(using a DSR

position

sent

J

according

from

VT100

from

VT100 -Malfunction

from

host

from

host

(using a CPR

as a response

to

- Ready,

(default)

- Please

control

- Please

default value: 0

the

following

No

mal-

report

sta-

sequence)

report

ac-

control

to a requesting

se-

-

This

sequence

parameter.

width

Any

mode.

Parameter

o

2

EL

Erase In Line

Editor Function; format:

Erases

some

or

Parameter

o

2

erases

some

complete

or

line erased

ESC [

all characters in

all

of

Ps

the

characters

by

this

sequence

in

Parameter Meaning

Erase

from

of

the

screen,

Erase

from

tive

position, Erase all erased, cursor

of

changed

does

K

active

line

according

Parameter Meaning

Erase

from

of

the

line,

Erase

from

active

position,

Erase all

of

the

will

the

active

inclusive

start

inclusive

the

not

display

return

of

to

move.

according

that

position

(default)

the

screen

display

- all lines are

single-width,

default value: 0

to

the

parameter.

the

active

position inclusive the

the

(default)

start

of

inclusive

line,

inclusive

the

line

to

screen

to single

the

and

the

to

the

end

ac-

the

end

the

3-25

PROGRAMMER'S

INFORMATION

HTS

HVP

IND

Horizontal Tabulation

Set

Format Effector; format: ESC H

Set one horizontal stop

at

the

active position.

Horizontal and Vertical Position

Format Effector; format: ESC [ Pn ; Pn f

Moves quence has second specifying active position default

home tion or

the

active

position

two

parameter

the

to

move

condition

position. In

counterpart, CUP. The

set state

with

of

the origin

the

to

the

position specified

values,

column. A parameter value

to

the

no

parameters present moves

VT100,

numbering

mode

the

first specifying the line position and

first line

this

(DECOM).

or

control behaves identically

of

lines and

Index

Format Effector; format: ESC D

of

column in

default value: 1

by

the parameters. This se-

either zero

the

display, respectively. The

the

columns

or

one causes

active position

with

its

depends on

editor

the

to

func-

reset

the the

the

This sequence causes changing scroll

up

LNM

Line

Feed/New

This is a parameter applicable quences. The reset state causes

ANSI

Standard and causes the return key the

LF

to

return key

This mode does

NEL Next Line

Format Effector; format:

This sequence causes

line

downward.

formed.

the

column position.

is performed.

Line

X3.4-1977,

imply

movement

to

send

the

not

affect

If

the

active position

If

the active position is

Mode

to

set mode (SM) and reset mode (RM) control se-

the

interpretation

to

imply

only vertical

(CR)

to

send

the

to

the

first

position

two

codes (CR.

the

index (lND).

LF).

ESC E

the

active position

active position is at

to

move

single code

of

the

This is

or

move

the

bottom

downward

at

of

the

line feed (LF). defined in

movement

CR.

following

the

New

line (NEL)

to

the

first position on

margin, a scroll up is per-

one line

the

bottom

of

the

active position

The set state causes

line and causes

Line

(N

format

without

margin, a

L) option.

effectors.

the

Format Effector; format: ESC M

Move the active position is

3-26

the

active position

at

to

the

same horizontal position on

top

margin, a scroll

down

the

preceding line.

is performed.

If

RIS

Reset

To

Initial

State

RM

SCS

Format:

Reset also causes serted briefly.

Reset

Format:

Resets one parameter Set

Select

The appropriate character sets. The and

ESC c

the

VT100

the

Mode

ESC (

or

more

string. Each

Mode

(SM)

Character

shift

out) respectively.

GO

Sets

execution

Ps

control

GO

to

its

initial state, i.e.,

of

the

;Ps ; ... ; Ps

VT100

modes as specified by each selective

mode

to

be reset is specified

sequence.] (See

the

power-up

I

Modes

state

it

self-test

default

following

Set

and G 1 character sets are selected

GO

and G 1 sets are selected by

G1

Sets

has after

and signal I N IT H

by

the

it

is

powered

to

value:

a separate parameter. [See

codes

this

from

none

parameter

section.)

the

five possible

SI

and SO (shift in

on. This

be as-

in the

SG R

Sequence

ESC

(A

ESC

(B

ESC

(0

ESC

( 1

ESC

(2

The

United

character sets

character sets. Special graphics means

1378

be used

Select

Format

Invoke transmitted occurrence

Kingdom and ASCII sets

to

1768 are replaced until

another

Graphic

Effector;

the

graphic

to

of

Parameter

Sequence

ESC)A ESC) ESC) ESC)

ESC)

to

be used

Rendition

format:

rendition

the

VT100

SG

R.

Parameter

Meaning

B

0

1

2

with

SCS is received.

ESC (

specified by

are rendered according

Alternate

conform

escape sequences." The

other

Ps;

Meaning

United ASCII Special Graphics Alternate Standard Character Set

Special Graphics

Kingdom

Set

Character ROM

to

that

the

characters. The specified character

... ; Ps

the

parameter(s). All

Set

the

"ISO

international register

other

graphic characters

m

to

the

parameter(s)

default

following

sets are private

for

until

of

the

codes

set

will

value: 0

characters

the

1

4

5

7

Attributes

Bold Underscore Blink Negative (reverse) image

off

or

increased

intensity

3-27

PROGRAMMER'S

INFORMATION

All

other

parameter values are ignored.

SM

TBC

Without determined the reverse lection in Chapter 1.)

Set

format:

Causes one selective parameter in the parameter string. Each mode separate parameter. A mode is considered set control sequence.

Tabulation

Format

the Advanced Video Option

by

the cursor selection; in

attribute

Mode

ESC [ Ps;

or

Clear

Effector;

Parameter

will

activate the currently selected attribute. (See cursor se-

...

; Ps h

more modes

format:

to

be set

ESC [ Ps g

only

one character

that

case specifying either

default

within

until

Parameter

value:

the

VT100

it

is reset by a reset mode (RM)

default

Meaning

to

o Clear the horizontal tab stop

default case).

Any

3

other

parameter values are ignored.

position (the Clear all horizontal tab stops.

attribute

none

as specified

be set is specified by a

value:

is possible

the

underscore

0

at

by

the

as or

each

active

MODES

The

following

and reset mode (RM) controls.

ANSI

Specified

Parameter

o

20

DEC

Private

If

the first character in

preted as

Parameter

0 Error (ignored)

1

2

3 DECCOLM 4 DECSCLM

5 OECSCNM

is a list

Modes

DEC

of

VT100

Modes

Mode Mnemonic

LNM

the

private parameters according

Mode Mnemonic

DECCKM Cursor key DECANM

modes

parameter string is ? (77

which

Mode

Error (ignored)

Line feed

Mode

ANSI/VT52 Column

Scrolling Screen

6 OECOM Origin

7

8

9

OECAWM OECARM OECINLM Interlace

Auto Auto

may

be changed

Function

new

to

the

Function

wrap

repeating

line mode

the

parameters are inter-

),

8

following:

with

set mode (SM)

3-28

Any

other

parameter

The

following be considered noted. Refer

Mode Mnemonic

modes,

to

that

Mode

values are ignored.

which

are specified in

be

permanently

standard

for

Function

set.

further

the

ANSI

permanently

information

X3.64-1977

reset,

or

concerning these modes.

standard,

not

applicable, as

may

State

Mode

Escape

Valid

VT52

Sequences

(detailed)

CRM EBM ERM FEAM FETM GATM HEM IRM KAM MATM PUM SATM SRTM

TSM TTM VEM

Graphics

Format:

All

subsequent characters are interpreted as

until

the

no graphics processor is installed.

Control representation Editing Erasure Format Format Guarded area Horizontal editing Insertion-replacement

Keyboard Multiple Positioning

Selected area transfer

Status

Tabulation Transfer Vertical editing

Processor

boundary

effector effector

action

area

unit

reporting transfer

stop

termination

On

ESC 1

graphics processor

action transfer

transfer

off

command

Reset Reset Set Reset

Reset

NA

NA Reset

Reset NA Reset NA

Reset

NA NA

commands

is received. This sequence is ignored

to

the

graphics

option

if

Graphics

Format:

Turn

Cursor

Format:

Move

tion.

stops

Cursor

Format:

Move

position.

cursor stops

Processor

ESC 2

off

the

graphics processor.

Up

ESC A

the

active position

If

an

attempt

at

the

top

Down

ESC B

the

active

If

an

at

is made

margin.

position

attempt

the

bottom

Off

is

upward

made

one position

to

move

downward

to

move

margin.

without

the

cursor above

one position

the

cursor

altering

the

without

below

the

horizontal posi-

top

margin, the cursor

altering the horizontal

the

bottom

margin,

3-29

the

PROGRAMMER'S

INFORMATION

Cursor Right

Format: ESC C

The

special characters in the are

different

in

the

VT52.

graphics

from

NOTE

VT100

those

Move the active position

the right

of

the right margin, the cursor stops

to

the right.

If

an

attempt

is made

at

the right margin.

Cursor Left

Format: ESC

Move

the active position one position

cursor

to

Enter Graphics

0

the left

to

the left.

of

the left margin, the cursor stops

Mode

If

an

attempt

at

Format: ESC F

Causes the special graphics character set

Exit Graphics

Mode

to

be used.

Format: ESC G

This sequence causes the standard ASCII character set

to

move the cursor

is made

to

the left margin.

to

be used.

to

move the

Cursor

to

Home

Format: ESC H

Move

the cursor

to

the home position.

Reverse Line Feed

Format: ESC

Move

the active position upward one position

tion.

If

the

Erase to

Format: ESC

I

active position is

End

of Screen

J

at

the

top

margin, a scroll

Erase all characters from the active position

not

End

changed.

of Line-

position is

Erase to

Format: ESC K

without

to

the end

altering the column posi-

down

is performed.

of

the screen. The active

Erase all characters from the active position

active position is

3-30

not

changed.

to

the end

of

the current line. The

Direct Cursor Address

Information options tained using the device butes quence.

must

in

(DA)

regarding

be ob-

ANSI

control

NOTE

mode,

attri-

se-

Format:

Move the cursor are sent as

to

ESC V line column

ASCII codes whose values are the

the

first line or column.

to

the

specified line and column. The line and column numbers

0508 refers

Identify

Format: ESC Z

This sequence causes

the

terminal

host. This sequence is:

ESC

/

z.

Enter Alternate Keypad

Mode

Format: ESC =

The optional auxiliary keypad keys for use by

Exit Alternate Keypad

applications programs.

Mode

Format: ESC >

number

to

the

eighth line or column. etc.

to

send its identifier escape sequence

will

send unique identifiable escape sequences

plus

037

; e.g

8

..

0408

refers

to

the

The optional auxiliary keypad keys send the ASCII codes for the functions acters engraved on

Enter

ANSI

Mode

the

key.

Format: ESC <

All subsequent escape sequences X3.64-1977 tion

will

and

not

be recognized.

X3.41-1974.

will

be interpreted according

The

VT52

escape sequence designed in this sec-

to

ANSI Standards

or

char-

3-31

CHAPTER

VT100 Options

4

CHAPTER

VT100

The

VT100 and allow its use in a are:

In

the future, additional options basic how

has available options which are designed

wide

range

of

applications. The options currently available

20

VT1XX-AA VT1XX-AB

VT100. Contact the nearest DIGITAL Sales Office for further information and

to

order

the

options.

rnA Current Loop Option

Adva nced Video Option

will

be available

to

enhance the basic terminal

which

will

OPTIONS

further enhance the

4

ADVANCED The features:

VIDEO

Advanced Video Option enhances the basic

•

10

additional lines VT100 playa

• Additional character attributes - the any character(s) on the screen

by providing additional display memory. The screen can

total

Bold Blink

Underline

Reverse

Any combination

OPTION -VT1XX-AA

of

132

column display - this capability is added

of

24

lines

in

either

of

the above

in

80-

any

or

VT100

of

VT100

132-column

the

by

is

now

following

capable

adding the

format.

of

highlighting

ways:

following

to

the

now

dis-

4-3

VT100

OPTIONS

• Capability added character generator

Advanced

Use the

Video

following

1.

Remove

2. Unplug the keyboard (Figure 4-1).

3.

Unplug any connectors from the composite video

4. Disconnect

5.

With

the access cover.

If

6. cover connect

7. Remove

8. Remove any graphic or

of

an additional character generator ROM - this capability is

to

the

VT100

Option

procedure

power

a blade-type screwdriver loosen the four captive screws holding

the

20

mA

away

J5

the

by providing the memory required ROM.

Installation

to

install the Advanced Video Option.

from the "terminal

the

communications cable.

Current Loop Option

from

the terminal

from the terminal controller board.

access cover.

STP

by

about

cables.

to

access a second

disconnecting the ac plug.

input/output

is

installed, gently pull

2 inches; then reach in and dis-

the

jacks.

access

VT1

Figure 4-1

00

Rear

View

CAPTIVE SCREWS

(4) COVER

l

d

KEYBOARD 1

CONNECTOR

OPTIONAL COMMUNICATION CONNECTOR

ACCESS

·~

__

20mA

~mmm

__

POWER SELECTOR CONNECTOR SWITCH

EIA

-

COMMUNICATIONS CONNECTOR

EXTERNAL VIDEO COMMUNICATIONS

MAIN

FUSE

POWER SWITCH

MA-1987

4-4

9. Remove board most

10.

Place

ponent

the

straight

slot

in

the

terminal

side

terminal

controller

board by

gently

out. The terminal controller board

the

card cage (viewed

controller

up

(Figure

4-2).

from

board on a

the

flat

but

rear).

surface

firmly

is

located in

with

pulling

the

left-

com-

11. Locate the mount a standoff

12. Grasp connector Gently controller

13. Reinstall the must

four

mounting

holes drilled in

in each.

the

advanced video board by the edges and carefully align

pins

with

the

connector

but

firmly

mount

the advanced video board

board.

terminal

be inserted

into

controller

the

leftmost

14. Reinstall all cables removed.

15. Reinstall the access cover.

CONTROLLER

ADVANCE VIDEO

BOARD

J1

ADVANCE VIDEO CONN

o

board. The

ECTIDlR

the

terminal

on the

terminal

slot

in the card cage.

TERMINAL CONTROLLER

BOARD

~J2

controller

onto

the

controller

GRAPHICS

CONNECTOR

board;

the

board.

terminal

board

J6

Figure

Advanced Video Option

4-2

Installation

n:

LF

J520mA CURRENT LOOP CONNECTOR

o

J4

EIA COMMUNICATIONS CONNECTOR

J8

VIDEO IN

CONNECTOR

J9

VIDEO OUT

CONNECTOR

J7

KEYBOARD

CONNECTOR

MA-1995

4-5

VT100

OPTIONS

Advanced Video Option Checkout

Use

the

Option.

1.

2.

following

Turn

the

Press the ruler should contain alternating normal and reverse video fields.

procedure

the

terminal

power

words

up self-test.

the

SET-UP key. The

"TO

to

check

power

EXIT PRESS SET-UP" should

out

the

on and verify

words

"SET-UP

operation

that

no error

A"

of

the

Advanced Video

was

detected during

should

blink

in boldface,

be

underlined, and the

3. Place

4. Exit SET-UP and

20

mA

CU RRENT LOOP

The

20

rnA Current Loop Option computer 20 face information.

20

Use

over a short distance

rnA Current Loop Option are located in Chapter 2

mA

Current Loop Option Installation

the

following

1.

the

terminal in

mode.

ESC < ESC

The screen should

OPTION -VT1XX-AA

procedure

Remove

power

from the terminal by disconnecting the ac plug.

the

type

#8

now

allows

without

to

install the

132

column

the

following

display

24

the

VT100

using a modem. The specifications for the

20

mode and then in the LOCAL

sequence:

lines X

rnA Current Loop Option:

132

columns.

to

connect directly

of

this manual under inter-

to

the

host

4-6

2. Unplug the keyboard.

3.

Unplug any connectors from

the

4. Disconnect

5.

With

a blade-type screwdriver loosen

the

access cover; then remove

6.

Set

the

TRANS

terminal

ACT position.)

7.

Set the nal position.)

8. Connect

9. Perform the

must

REC

must

communications cable.

switch

provide current on

switch

provide current on

P5

to

20

to

J5

on the terminal controller board (Figure

rnA Current Loop Option Checkout.

to

the

NORMAL

the

composite video

the

cover.

the

NORMAL

the

receiver line set

position (Figure

the

receive line set the

input/output

four captive screws holding

position (Figure 4-3).

the

4-3).

switch

(If

the

to

the

4-4).

jacks.

(If

the

to

the

termi-

ACT

a

.--

____

P5

CAPTIVE SCREWS

ACCESS COVER

20mA

CURRENT TOP

BOARD

TRANSMIT

LINE SWITCH

RECEIVE LINE SWITCH

(4)

20

rnA Current Loop Option

Figure

4-3

20

rnA

The

VT100

loopback

Current

test

Loop

contains

the

VT100

Option

Checkout

an internal

transmit

test

and receive lines are connected via a special external connector. A predefined set mitted. transmitted.

Use

The

the

following

terminal

If

the

procedure

receives the characters and compares

characters

do

not

match

to

check out the operation

Option.

1.

Disconnect the terminal from the

2.

With the Transmit Line Switch and Receive Line Switch position, connect the 20 mA Mate-N-Lok connector mounted

20mA

COMMUNICATIONS CONNECTOR

called the data

of

an

error

communications

loopback

to

the

connector

bottom

MA-1996

loopback

characters are

is

then flagged.

of

the 20 mA Current Loop

them

test. In

to

then

to

the

each

characters

line.

in

the normal

(PN

70-15503-00)

of

the access cover.

the

data

other

trans-

to

the

3.

Place the terminal in ANSI-compatible mode (in SET-UP B equals a

1).

group

2 switch 3

4-7

VT100

OPTIONS

Figure

Terminal Controller Board

4-4

4.

Type the

5.

Once the test is complete return the

terminal to the

following

original

positions, remove the

communications

sequence

COVER

WITH

OPTION

TERMINAL CONTROLLER

BOARD

MA-1997

to

perform the data loopback test: ESC [2';2Y

the

20

mA

current

loopback

loop board switches

connector, and reconnect the

line.

20m

A

to

4-8

Appendixes

ANSI

DEFINITIONS

APPENDIX

AND

NOTATION

A

Active display ing the next graphic character.

ANSI

and responds only

and semantics are in accordance

tions.

Character

which

symbol.

Control a control sequence

Control

a particular

trol function.

Control ing, processing, transmission,

Control used that control. and

position

that

mode

is displaying or is capable

- A control character, an escape sequence,

character

function -An

sequence

for

control purposes

begins

- The character position

is

to

display

- A

position

context

with

the control sequence introducer (CSI)

that

may contain a parameter string.

the

graphic symbol represent-

VT100

mode in

to

escape sequences whose syntax

-That

portion

that

performs a control function.

- A character whose occurrence in initiates, modifies,

action

- A sequence

that

or

to

perform a control function,

on

the

which

it

recognizes

with

ANSI

specifica-

of

a visual display

of

displaying a graphic

or

stops a con-

affects the record-

interpretation

of

characters

of

that

visual

or

data.

is

Control quence

is itself a prefix affecting

number

Control perform a control function and opening and closing

Cursor which derline.

Cursor active position.

Default when

Display area inside depending on

Editor positioning tion intended maining in the data stream. (See

sequence

that

provides supplementary controls and

of

contiguous characters.

string

- A visual representation

is

either a blinking reverse-video

control

- A

function-dependent

no explicit value,

- The current active area the

function

of

in a printing

to

introducer

the

- A string

- An

scrplling region, or the entire screen,

the

origin mode.

- A control

previously entered

or

be interpreted and executed

of

characters

delimiter

editor

or

a value

cathode ray tube device and

(CSI)

interpretation

control.

function

that

- An escape se-

of a limited

that

is

that

is

delimited by an

of

the active position

or

blinking

that

moves the

value

that

is assumed

of

0, is specified.

of

the screen, i.e., the

affects or

format

the

received informa-

without

effector.)

that

used

to

un-

layout or

that

is

re-

A-3

APPENDIX

A

Escape provides and

a

Escape used and character.

Final terminates by

Format positioning remain in and processing. (See

Graphic character. handwritten.

Home gin

character

supplementary

that

is

itself

a prefix affecting the

limited

number

sequence

for

control

whose

character

F.

effector

the

character

that

- The character position

mode

(DECOM).]

of

purposes

first

character is

- A character

an escape

- A

of

information

data

stream

has a visual representation

printed.

(ESC)

- A sequence

- A character.

- A control character

characters (code extension)

interpretation

contiguous

or

control sequence designated

control

editor

or

displayed.

characters.

of

characters

to

perform a control

the

escape (ESC) control

whose

that

on the screen and

subsequent

function.)

bit

affects

to

other

than

at

the origin. [See

that

of

that

is

function

combination

the

layout

or

that

may

interpretation

a control

normally

ori-

Intermediate bination precedes a final character in trol

sequence.

Numeric that

represents a

Parameter that

represent a single value: (2) The value so repre-

sented.

Parameter sent

one

Selective that

selects a functions. designated by quence the same with

one selective parameter. e.g

is identical

VT52

mode and responds VT52

type

character

parameter

number.

- (1) A

string

or

more

parameter

subfunction

with

more than one selective

effect

as several control sequences. each

to

CSI

- A

VT100

only

terminals

- A character

- A string

string

- A

string

parameter

- A string

Psa

F CSI Psb F CSI Psc

to

escape sequences

use.

whose

an

escape

of

bit

combinations

designated

of

one

of

values.

from

Ps.

In general. a control se-

mode

by

or

more

characters

of

bit

combinations

a specified

parameter

..

CSI Psa; Psb;

in

which

Pn.

it

bit

com-

or

con-

characters

that

repre-

list

of

sub-

causes

Psc

F.

recognizes

which

DEC

F

Notation

1.

I -

An

intermediate

578

inclusive.

2.

F - A Final character in:

a.

An

escape sequence.

b.

A

control

3.

Pn

- A

numeric

from

608

4.

Ps

- A variable

ter

separated

inclusive and 738.

A-4

to

718

sequence,

parameter

number

from

character in an escape sequence

inclusive.

of

the

other

where

in a

selective parameters in a

F is

control

by

738.

F is

from

608

1008

sequence.

Ps

is a

string

or a control

to

1768

to

1768

where

control

of

inclusive.

Pn

is a

sequence.

zero

or

sequence.

string

of

with

more

characters

where

I is

zero

or

more

each selective

from

408

characters

parame-

608

to

718

Example: The

1974

and used in

ESC I

Where:

a.

ESC

b.

I

...

bit

c.

F is

sequences in both 7 - and

d.

The occurrence condition

and ESC

with

current

format

the

...

I F

is the

introducer

I are the

combination

the

final character. F characters are

whose

then

continue occurs, the

the

ESC

just

escape sequence

of

an escape sequence as defined in

VT100

intermediate

408

of

recovery is

current

received.

is:

control

to

characters in the inclusive ranges

with

character (338)

bit

combinations

578 inclusive in both 7 -and

8-bit

environments.

to

execute

the

escape sequence execution. The

escape sequence is aborted, and a

If

the

character

is

aborted.

immediately

that

mayor

bit

combinations

CAN (308)

American

is named escape.

may

8-bit

of

the

function

or

the character SUB (328) occurs,

National Standard X

not

be present. I characters are

environments.

60s

to

1768 inclusive in escape

08

to

378 is

specified by

exceptions

new

one commences,

technically

are:

If

the

3.41--

an

error character character

beginning

the

A-5

ASCII

APPENDIX

CODE

CHART

B

h6

~

~b'

S

h4

.I-

0 0

0 0 0 0 I 0 0 0 0 0

0 I I 0

I I 0 0 I I

1 0 1 I 1 1 1

I 1

1 1

h3 h2

.I-

0 0

I I

I

0 0

I

0

I

0

0 1 0

0

1

0

I 0

1 1

hI

.I-

0

I

0

I

0

1

Row.l-

~

0

I

2

3

4 5

6

7

8 9

10

II

12

13

14

15

STANDARD

0 0 0

0 0

0

1 0

0 1 2

NUL

DLE

SOH

DCI

STX

DC2

ETX

DC3

DC4

EaT ENQ

NAK SYN

ACK BEL

ETB

BS

CAN

HT

EM

LF

SUB

VT

ESC

FF

FS

CR

GS

SO

RS

SI

US

(ASCII)

CHARACTER

1

SP

!

.

t

$

/.

&

I

( )

*

+

,

-

.

I

1 1 1

0

1

0 0 1 1

1 0 1 0 1

3

4

5 6

0

1

2 B

3 C

4

5

6

"7

8

9

.

;

<:

....

:::. ?

SET

@

A

[I

E U

F

G W

H

I

J

K

L

--

M

N

[)

F'

(~

R

S

T

V

X

y

Z

[

\ 1

]

~

_.

,

a

b

("'

d

P

f v

!:.t

h i \:l ..

i z

k

ITI

n

0

1

7

p

G

T'

~;

t

IJ

w

~.~

{

I I

}

N

DEL

8-1

EK-VT100-UG-Cl

The

changes uppercase I a change

bar

TECHNICAL

DOCUMENTATION

CHANGE NOTICE

VT100 USER GUIDE

EK-

VT 1

OO-U

G-OO

1

ERRA TA

on

the following pages have been made to avoid confusion between

)

(111

and

8

the lowercase L (154

in the margin. Please note this distinction in your copy.

Page No.

SHEET

)

characters. The changes are indicated by

8

Date

the

3-9 3-15 3-27

Corporaton

November November November

1978 1978 1978

, Printed in U.S.A.

digital equipment corporation • maynard, massachusetts

Auxiliary

for

Keypad - The keys on

the numerals, labeled ENTER if

these keys keys on meric data

were

the

main keyboard. Therefore,

entry

decimal

transmits

typed

need

not

the

auxiliary keypad

point,

~inus

the same code

on

the

auxiliary keypad

be

rewritten

sign, and

as

the

software

to

use

normally

comma.

transmit

In addition,

RETURN key. The

as

which

the

opposed

keypad.

to

the corresponding

requires considerable nu-

host

the

codes

the

cannot

key

tell

•

Auxiliary

Table

VT52

Keypad Codes

3-7

Mode

However,

auxiliary keypad and pressing

instance, the

cation mode. In keypad application defined

if

software

host

to

give escape sequences

can

must

give

be able

the

to

distinguish

the

corresponding key on

terminal a command

mode

which

may be used

functions.

The codes sent by the auxiliary keypad VT52/

AN

SI

mode

and

3-8.

None

and keypad

of

the keys are affected by pressing

numeric/application

CONTROL keys.

Key

o

1 2

3

4

5

6

7

8

9

·

(comma)

· (period)

ENTER PF1 PF2 PF3 PF4

Keypad Numeric

Mode

o

2

3

4

5

6 7

8

9

·

(comma)

· (period) Same as RETU

ESC P ESCQ

ESCR ESCS

RN

Keypad

Application

ESC? p ESC? q ESC? r ESC? s ESC? ESC? u ESC? v ESC? w ESC? x ESC? ESC? m

ESC? ESC? n

key

ESC? M ESC ESCQ

ESC ESCS

t

y

1*

P

R

between

all keys on

for

the

mode

Mode

pressing a key on

the

main keyboard

to

place

it

the

auxiliary keypad are

by

the

host

four

combinations

are

shown

the

SH I

FT,

the

for

in keypad appli-

as user-defined

of

the

in Tables

CAPS LOCK,

3-7

or

Table

3-8

Mode

Auxiliary

ANSI

Keypad Codes Key

o

1

2

3

4

5 6

7

8 9

•

are

echoed

VT100,

local

of played PF1

or

mode, the

the sequence

on the screen; e.g.,

will

mode,

display a

if

back

the

last

if

the codes

to

terminal

character

will

be

"P."

In

ANSI

•

NOTE

the

is in

dis-

· (comma)

· (period) ENTER PF1 PF2 PF3

PF4

* The

last

Keypad Numeric

o

1

2

3 4 5 6

7

8

9

.

(comma)

· (period) Same ESCO ESCOQ ESCOR ESCO

character

Mode

as RETURN key

P

S

of

the

sequence is a lowercase L

Keypad Application

ESC

a p

ESC

Oq

ESC

a r

ESC

a s

ESC

a t

ESC

au

ESCOv ESCOw ESC

Ox ESCQy ESCO

m

a

1*

ESC ESCO

n ESCOM ESC

a P

ESCOQ ESCO

R

ESCO

S

Mode

(154

),

8

November

3-9

1978

Character

The

Character

United Kingdom (UK) United States Special

and

Alternate character ROM

Alternate

special

Se.ts

(GO'and

GO

and G 1 character sets are designated as follows:

set

(USASCII)

graphics characters

line drawing set

character ROM

graphics characters

G1

Designators)

GO

designator

ESC

(A

ESC

(B

ESC

(0

ESC

( 1

ESC

(2

G1

designator

ESC)A ESC) B ESC)

0

ESC) 1 ESC

)2

Scrolling

ESC

Pt is

bottom

Tab

Set tab

Clear tab

Clear all Modes

Mode

Line Cursor key mode

ANSI/VT52

Column mode Scrolling mode Screen mode

Origin mode Wraparound

Auto

Interlace

Graph ic proc.

Keypad mode

Region

[ Pt ;

Pb

the

number

line

of

Stops:

at

current

at

current column

tabs

Name

feed/new

mode

repeat

r

line

option

of

the top line

the scrolling region and must be greater than

column

Mode

New Application ANSI

132 Smooth Reverse

Relative On On On On Application

line

Col

of

the scrolling region;

ESC

H

ESC

[ g

or

ESC

[3

g

Set

To

Sequence

ESC

[20h ESC[71h N/A ESC

[73h ESC

[74h ESC

[75h Normal ESC

[76h ESC

[77h Off ESC

[7Sh ESC

[79h

ESC

1 Off

ESC

=

[ 0 g

Mode

Line feed Cursor VT52 SO

Col

Jump

Absolute

Off

Numeric

Pb

To Reset

is the number

Pc.

Sequence

ESC

[201*

ESC

[71/*

ESC

[721*

ESC

[73/*

ESC

[74/*

ESC

[75/*

ESC

[76/* .

ESC

[77/*

ESC

[7S/*

ESC

[79/*

ESC2 ESC>

of

the

Reports

Cursor

Invoked by

Response is

Status

Invoked by

Response is

* The last character

Position

Report

ESC

[6

n

ESC

[PI

Pc R (PI

number)

ESC

[5

n

ESC

[ 0 n (terminal ok)

ESC

[ 3 n (terminal not ok)

of

the sequence is a lowercase L

= line number and

(154

),

8

Pc = column

3-15

-

November

1978

•

RIS

Reset

To

Initial

State

•

RM

SCS

Format:

Reset the also causes serted

Reset

Format:

Resets one parameter Set

Select

The appropriate

character sets. The

and shift out) respectively.

ESC. c

VT100

briefly.

the

execution

to

its

initial state, i.e.,

Mode

ESC [ Ps ;Ps ;

or

more

VT100

string. Each

Mode

(SM) control sequence.] (See

Character

GO

Sets

Sequence

mode

Set

GO

and G 1 character sets are selected

GO

and G 1 sets are selected by

G1 Sequence

the

state

it

has after

of

the

power-up

...

; Ps

1*

modes as specified by each selective parameter in the

to

be reset is specified

self-test

Modes

and signal

default

by

following

the

it

is

powered

INIT H to

value:

a separate parameter. [See

codes

none

this section.)

from

the five possible

SI

and

SO

on. This

be as-

(shift in

Sets

Meaning

SGR

ESC(A ESC

(B

ESC

(0

ESC

( 1

ESC(2

The United Kingdom and ASCII sets

character sets

character sets. Special graphics means

1378

to

be used

Select

Format

Invoke the graphic rendition specified by transmitted occurrence

are

176

8

until

another

Graphic

Effector;

to

of

Parameter

o

1

4

5

7

ESC) ESC) B ESC) ESC) 1

ESC)

to

be used

replaced

Rendition

format:

the

VT100

SGR.

Parameter

Attributes

Bold

Underscore

Blink Negative (reverse) image

A

0

2

with

SCS is received.

ESC [

are rendered according

United ASCII Special Graphics Alternate Standard Character Set Alternate Special Graphics

conform

escape sequences." The

other

Ps;

Meaning

off

or

increased intensity

Kingdom

Set

Character ROM

to

that

the

characters. The specified character

... ; Ps

the

parameter(s). All

Set

the

"ISO

international register

other

sets a

graphic characters

m

to

the parameter(s) until the

for

default

following

re the codes

characters

of

private

set

will

value: 0

* The last character

of

the

sequence is a lowercase L

(154

),

8

3-27

NnVAmhAr

197R

•

Digital Equipment EK-VT100-UG-001, VT100 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual