DDS DELTA 1 Reference Manual

DELTA

1

VIDEO

DISPLAY

TERMINAL

REFERENCE

MANUAL

Delta
Data
Systems

Corporation

Woodhaven

Industrial

Park.

Cornwells

Heights.

Pa.19020

•

Phone

(215]

639-9400

DELTA 1

VIDEO DISPLAY TERMINAL

REFERENCE

MANUAL

September

1969

DELTA

1

VIDEO DISPLAY TERMINAL

TABLE

OF

CONTENTS

1.0

1.1

1.2

1.3

1.4

2.0

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

3.1

3.2

3.3

3.4

3.4.1

4.0

4.1

4.2

4.3

Sync

Parallel

Use

Signal

Remote

Systems

Read-Only

Serial

Modes

Conversation

Light

TV

with
and

Introduction
Selective
Editing

Programming

Cursor

Controls

Configuration

Display

Memory
Refresh

Edit

I/O

I/O

Controller

Keyboard

of

Operation

Format

Normal
Graphic
Pen

Tracking

Compatibility

CCTV

Equipment

Raster

Composite

Blink

Package

Control
Display

Memory

Control

Memory
Control
Control

Mode
Mode
Mode
Mode

Scan

Video

5.0

5.1

5.2

5.3

5.3.1

5.3.2

5.3.3

5.3.4

5.3.5

5.4

5.4.1

5.4.2

5.4.3

5.5

5.5.1

Input-Output

Transmit

Transmit
Transmit
Transmit

Clear
Clear

Party

Transmit

Transmit

Display

X

Address

Y

Address

Clear
Message
Display

Clear

Enter

Line

Line

Line

Transfer

I/O

Bus
Commands
Commands

Message
Command
Command
Counter
Counter

Commands

Command
Command
Command

Commands

Enter

5.5.2

5.5.3

5.6

5.6.1

5.6.2

5.6.3

5.6.4

5.7

5.7.1

5.7.2

5.7.3

5.7.4

5.7.5

5.7.6

5.7.7

5.7.8

5.7.9

5.7.10

5.7.11

5.8

5.9

Enter

Enter

Addressed

Insert

Delete

Display

Party

Interrupt

Addressed

position

Edit

Commands

Insert

Line

Delete

Line

Controls

Set
Clear
Cursor

Cursor

Cursor

Cursor

New

Backspace

Line

Line

Command
Command
Command
Command

Blink
Blink

Left

Right

Up

Down.

Return

Line

Home

Tab

Signals

System

6.0

6.0.1

6.0.2

6.1

6.1.2

6.1.3

6.1.4

6.1.4.1

6.1.4.2

6.1.5

6.2

6.2.1

6.2.2

6.3

6.3.1

6.3.2

6.3.3

6.3.4

6.3.5

7.0

7.1

ASCII

Teletype

Serial

Controller

Communication

Sequence/Response

Compatibility

Serial

Additional

Electrical

Parallel

Parallel

Serial

Communications

Communication

Synchronous

-

IBM

Control

Addressing

Transmit

Enter

Data
Data
Error

Serial

Echoplex

Interface

Control
Control

Signal

Characteristics

Interface

Controller

Interface

Interface

Compatible
Characters

Sequences

Dialogue
Commands
Commands

Control

Controller

Normal

(RS-232B)

Grounds

Data

Signals
Signals
Signals

Controller

I/O

Mode
Mode

Bus

FIGURES

3.0

5.1

5.2

5.3

5.4

5.5

6.1

6.2

7.1

7.2

8.0

9.0

Sequential

DELTA 1

USASCII

DELTA 1 System

Input/Output

Party

Priority

Interrupt

Sequence/Response

Data

Commands

Sequence/Response

Data

Commands

Sequence/Response

Data

Commands

Sequence/Response

Data

Commands

Bits

Party

via

via

and

CODE

Party

Line

Data

Line

Party
Schematic

Diagram

from
Diagram
from

Diagram

from

a

Parallel

Diagram
from

a

Parallel

DELTA 1

Configuration

Line

Schematic

Input

Output

Line

Timingl

Ti~in~

Timing

Diagram

for

Transmit

the

Computer

for

the

Computer

for

Transmit

the

Computer
Interface
for

the

Computer
Interface

Control

Keyboard

Enter

Enter

Codes

5.1

7.1

TABLES

Parallel

Party

Line

Interface

I/O

Connector
Connector

1.0

The
alone
and
a

INTRODUCTION

DELTA

computer

retrieval

controller,
play.
an

EIA-TV
operation
to

display

The

DELTA 1 has

each

of
graphic
capability
data
fore

is

unavailable

1 VIDEO DISPLAY TERMINAL

A

standard

compatible
of

many

information

24

lines.

information

for

included

terminal

of

digital

an

alpha-numeric

T.V.
T.V.

a

capacity

A

editing,

to

with

for

monitor

signal.

monitors

to

graphics

on

a

formatting

provide

a

terminal

information.

many

of

128

rapid

keyboard

is

This

users.

960

mode

by

data

is

a

complete

entry,

It

and

used

for

makes

in

a

room

characters,

provides

64

matrix.
and

transmitting

manipulation

in

this

stand

transmission,

consists

a

CRT

display

possible

or

building

40

on

display

Complete

hereto-

price

class.

of

dis-

of

the

of

Communications
EIA

compatible

serial

bility

2701

A

parallel
electrical
the

control

interface
to

make

communications

interface

compatibility.

parallel

sequence

input/output.
The

are

most

provided

complete

preparation
keys
insert
format

open

or
control

or
delete

information

mation.

Transmission

information

operation.
The

selective

selected

attention

positions

to

with

serial

provides

the

interface

providing

to

simplify

of

data.

close

keys

permits

while
provides

blink

the

data.

the

DELTA

communications

~ELTA

1

controller

is

also

using

set

of

editing
operator

The

a

space

open

entering

the

operator
and

a

high

feature

to

blink

1

is

ASCII

communications

compatible

of

available

Data

is

a

REQUEST-ACKNOWLEDGE

compatibility

and

manipulation

character

on

a

line

or

close

and

enters

clearing

level

of

permits
to

call

provided

interface.

with

the

IBM

with

transferred

format

insert

and

a

line

protecting

variable

of

the

efficiency

any

characters

the

operator's

through

the

software.

DTL

with

controls

and

the

line

space.

variable

an

The

capa-

Model

through

computer

and
delete

The
fixed
infor-

of

at

Complete

the

computer

the

cursor

mission

handle

cursor

and

either

anywhere

erase

message.

control

is

the

provided

on
data
entire

from

the

by

screen.

the

cursor

commands

screen,

keyboard

controls

Variable

provide

a

single

the

as

to
ability

line,

well

position

trans-

or

as

to

a

options
hard
closed
with
cation

A.

copy

circuit

the

and

offered

devices

DELTA

direct

Options
the

32

1.

Lower

2.

Line

3.

ASCII

for

the

for

T.V.

1,

equipment
and
connection

also

additional

case.

drawing

control

DELTA 1 include

printing

what

for

various

interfaces

to

include

a

characters

characters.

code

is

use

other

96

character

graphic

a

light

on

the

in

conjunction
for

computers.

are

either:

symbols.

pen,

screen,

communi-

set

where

(The

the

1.1

The

call
the

SELECTIVE BLINK

SELECTIVE BLINK

attention

screen.

approximately

eye

is

captured

priate
Blink

BLINK

action

will
condition.

character

in

that
Clearing
acter

from
for

be

terminated.
arately

stop

position

will

blinking,

each

and

blinking

the

position

use

of

blink

to

Such

a

once
by

to

acknowledge

cause

any

position,

will

position

not

stop
the

In

independently

as

required.

any

of

capability

feature
important
information

per

second

the

blinking

field

of

When BLINK

any

displayable
blink
to

a

space

the

blink

appropriate

for

which

this

way,

programmed

these

be

options

deleted.)

permits
information

blinks

rate.

and

receipt

characters

is

established

on

and

off

or

function.

command

the

blink

each

position

requires

the

computer
displayed

on

and

The

he

can

of

such

to

characters

on

the

changing

To

must

function

to

blink

to

off

at

operator's

take

appro-

information.

be

in

for

a

stored

screen.

the

char-

stop

be

a
entered
should

may

be

or

to

that

on

the
given

field

sep-

BLINK
be
VARIABLE
change

1.2

The

Because
is
pulate
the

These

is

independent

affected

data

the

location

EDITING

DELTA I has

an

important

the

ability
the

data

edit

are

features

as

by

PACKAGE

follows:

whether

in

the

a

complete

to

receive

and

provided

of

the

a

given

FORMAT

of

the

blink

set

characteristic

data

then

transmit

by

format

position

MODE.

of
from

the

function

is

Edit

field

data

back

commands

as

editing

of

a

a

computer,

to

CRT

DELTA I are

and

FIXED

well

terminal

the

will

or
will

as

data.

features.

mani­computer,
essential.

A.

Insert

The

Insert
opened
characters
moved

line

over

is

position

open

up a multi-position

inserted

affectinq

to

add

other
B.

group

Insert

Command

up

at

at
one

discarded.

and
can

subsequent

a

letter

of

Line

the

position

that

place.
repeated
then

be

or

numbers

causes
position

The

The

operation

typed

lin~of

a

number

or

a

character

of

and

last

Cursor

space.

directly

in

letters.

the

to
character

remains

of

data.

the

Cursor

the

this

The

data

in

This

middle

space

and

right

on

in

its

key

to

without

is

of

to
all

are
the

same

will

be

used

an-

be

This
the
lines

command

Curosr

down

discarded.

for

insertion

C.

Delete

This
of
on

command
the
its

Cursor

tion.

on

the

acter

thing

from

else.
operation
old

one

the

new

D.

Delete

This
as
on
moved

command
the
the

up

bottom

a

different

is

one

This

Cursor

right

position

A

space

line.

a

where

will

one.

Line

Cursor

next

one

line

takes

located

line.

into

causes

to

and

is

It
line
It

simply

causes

to

lower

line
from
line.

the

opens

the

the

be

replaced

all

to

be

brought

is

used

without
differs
any

new
repla,ce

all

be

replaced

line.

and

a

text

entire

and

moves

The

bottom

up

an

body

character

characters

moved

into

to

replacing

from

characters

characters

All

spaces

without

line

it

entire

of

the

by

the
to

to

the
the

remove

the

the

old

by

all

lines

are

replacing

of
and

line

line

text.

at

the

one

the
left
last
a

word

it

normal

typed

character

on

the

below

brought

data
of

all

on

lower
data
of

data

position

immediately

right

one

posi-

position

or

with

some-

typing

over

the

same

characters

that
into

it

which
is

of

char-

an
with

line

are
the

with

the

E.

Roll

One

of

the

Terminal

to

ROLL
tion-Qr
then

be

and

Crawl

important

through

data

up

insertion

entered

the

and

down

command.

so

that

capabilities
edit

functions

by

the

New

a

continuously

of

use
lines

the

is

of

DELTA
the
the

of

data

moving

1
ability
dele-

can
text

can

same
ters,
In
to

left

appear

thing

CRAWLING
each
be

entered

or

on

can
case
right.

the

be
from

the

can

screen

true

for

left

appropriate

be

displayed

of

a

to

the

terminal.

single

right

characters

and

row

or

moved

right

of
or

The
charac-

to
lines

up,

left.

down,

1.3
The

ety
various

format

REMOTE

DELTA 1 display
of

commands

function

controls,
control.
Cursor

to
providing

1.4
An

DELTA

For
ibility

At

include

HOME

tion
the
and
one

CURSOR

extensive

1.

operator

to

the

keyboard,

UP:

command

of

the

Cursor

the

BACKSPACE

position.

PROGRAMMING

to

controls.

the

In

addition,

be

set

at

an

absolute

CONTROLS

set

of

These

are

convenience,

the

computer

there

DOWN,

LEFT,

which:mD-Ves

first

to

the

line,
first
command

is

capable

provide

erase

the

any

address

Cursor

designed

are

of

for

remote

These

controls,
remote

fixed

position
to

Controls

with

and

to

programmer.

7

Cursor

and

RIGHT.

the

Cursor

the

RETURN

position

which

moves

responding

operation

include

and

computer

on

the

terminal.

is

provided

two

points

provide

Commands~

Also

to

the

command

of

the

following

the

to

all

of

the

transmit

can

the

screen

of

complete

These

provided

first
which

Cursor

a

vari-

of

the

cause

on

view;

flex-

is
posi­moves

line,
back

the

the

by

the

the

All

of

the

above

the

computer
positioning
POSITION

a

line

the

and

position

manipUlative

which

the

CURSOR

position

addressed.

capability

Cursor

also

Cursor

any

COMMAND.

number,

Commands

has

the

where

The

Cursor

will

This

from

provides

the

are

programmable

capability

on

the

screen

command,

automatically

the

computer.

for

absolute'
with

given

move

ultimate

from

the

with

to
in

2.0

The
ular

SYSTEMS

DELTA 1 display

components

CONFIGURATION

station

described

consists

in

the

of

following

a

number

paragraphs:

of

mod-

2.1

The
timing,
acter

tion
standard

compatible

and
a
Display

for

2.2

The

employs
atandard
The
of

play

contrast,

other

providing

the
tors
large

DISPLAY

function

font,

into

composite

source

any

DISPLAY

technique

12"

40

characters

station

displays

screen

can

screen

CONTROL
of

integrate

and

a

signal

T.V.

of

Controller

closed

a

CRT

screen

be

monitor.

sync

video

control

used

scanned

T.V.

are

and

horizontal

the

opportunity

in

several

additional

remote

display

the

convert

capable

generator

to

circuit

for
raster
monitor

will

each.
three

may

be

control

refresh

the
It

signals.
signals

be

the

T.V.

generation

approach.

display

Mounted

control

hold.

attached

different

DELTA

monitors

memory,

digital

of

being

also

which

Optionally

necessary

source

facility.

mounted

960

knobs,
to

to

monitor
12"

can

is

to

generate

generate
character
recognized

contains
produces

to

of

and

display

The

in

a

characters

on

the

for

At

the

the

same

the

locations.

display
be

used.

master

the

informa-

by

an

EIA

RS170
composite
available
permit

synchronization

display

desk

side

users

top

in

of

brightness,

controller

contents

These

screens,

the

of

data

is

housing.

24

rows

the

option,

char-

a

sync
is

a

dis-

of
moni­or

2.3

The

is

which

characters
each
each,
bits

2.4

Memory

refresh
tion

READ-ONLY

read-only

programmed

represent

which

character

the

memory

each.

MEMORY

control

memory

of

the

CONTROL

data.

MEMORY

memory

to

contain

the

can

is

made

is

serves

and

controlling

During

is

a

shape

be

displayed

up

broken

the

permanent

a

pattern

of

each

of

seven

up

into

purpose
that

of
of
on

rows

64 x 7

of

the

source

portion

storage

one's

the

standard

the

screen.

of

words

addressing

and

of

the

device.
and

five

destina-

raster

zero's

64

Since
dots
of

five

the

It

scan

in
controlled
character
the

page.

from

If

core

new

memory

during

tracing.,
Data
to
Edit

is

the

Control.

which

by

position

During

memory

characters
or

if

some

the

period

the

memory

either

memory

the

display

a

real

this

to

are
other
of

extracted

during

time

along

the

to

time

address

the

is

clock

the

time

Display

be

form

in

from
retrace

active,

counter

line

the

data

Control.

entered

of

an

which

is

the

the

memory

and

into

edit
the
cursor

memory

time,.

which

character

is

transferred

the

is

raster

address.

or

as

defined

access

defines

line

refresh

pending,

is

entered

is

on

re-

in-

by

2.5

The

netic

REFRESH

refresh

core
words.
of

which
plqyed.
and

format

or

in

a

ing

two

2.6

The

EDIT

function

operations

puter

or

computer.
The

basic

to

and

the

display,

the

cursor

insert,

storage.

In

the

of

The

information.
color
bits

CONTROL

for

the

edit

from

on

insert

MEMORY

memory

DELTA

the

64

other

terminal,

may

be

of

Edit

the

keyboard,

functions

a

computer,

entering

the

line,

is

a
This
1,

characters
two

bits

used

Control

data

and

data

display,

delete,

high

speed,

unit

six

bits
are

In

a

one

or

for

other

is

received

for

include

clearing

into

or

or

random

contains

are

used

in

the

set

used

96

the

to

character-set

other
information.

to

perform

from

either

sending

control
all

or

the

display,

manipulating

delete

1024

for

is

store

of

all

all

data

of

sections

data

line

access

mag-

eight-bit

storage

to

be

dis-

blink

display

the

remain-

editing

the

com-

to

transmission

of

controlling

via

commands.

the

the

2.7

The

the
a
transmits
telephone

transmit,

The
operation

SERIAL

function

display

I/O

of

system

communications

and
company

or

control

Serial

I/O

required

CONTROL

the

to

line.

receives

supplied

Controller

to

Serial

communicate

The

serial

commands

also

establish

I/O

Controller

Serial

ASCII

modem

for

performs

is

with

and

the

I/O

Coded

converts

display.

a

computer

Controller

data

the

communications.

to

permit

via

via

a

it

to

edit,

handshaking

2.8

PARALLEL

I/O

CONTROLLER

The

function
direct
other

I/O

purpose

readers

printers,
The

parallel

bus

permitting
devices
direction

lines,
requiring
the

Parallel

completes
device
pheral.
the

data

the

peripheral

trol

2.9

The
dard
a

the

KEYBOARD

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reset

the

the

input/output

transmission,

location.

to

the

contents

origin

of

the

5.3.3

TRANSMIT

LINE

COMMAND

(0100001)

This

command
information
the

end

the

cursor

line.

5.3.4
This

TRANSMIT X ADDRESS

command
counter
of

the

cursor

5.3.5.
This

command
counter
address

5.4

5.4.1

CLEAR

CLEAR

transmits

from

of

the

line.

is

located

causes

to

be

transmitted.

on

TRANSMIT!

causes

to

be

transmitted.

of

the

cursor.

COMMANDS

MESSAGE

the

the

the

ADDRESS

the

to

the

present

At

the

at

the

COUNTER

contents

The

line.

It

COUNTER

contents

The

COMMAND

requesting

location

conclusion

first

location

(01000010)

of

X

address

varies

(0100011)

of

Y

address

(1100001)

the

the

of

of

X

from

Y

I/O

the

the

on

address
is

zero

address
is

device
cursor

command,
the

the

position

to

the

line

all
to

next

39.

This

command

contents

position

of

message
conclusion
at

the

5.4.2
The

execution

reset

with

on
the

to

a

the

cursor

5.4.3.
This

command
character
position
conclusion
the

position

will

of

all

of

the

(EOM)

of

character

CLEAR

the

space

display

is

CLEAR

code

of

the

of

reset

display

cursor

symbol

this

command

position

DISPLAY

of

this

origin

character

screen.

reset

LINE

COMMAND

causes

all

display

cursor

this

it

command

had

to
locations

to

but

on

following

COMMAND

command

position

code

At

to

the

the

replacement

to

the

before

a

space

not

the

screen.

the

cursor

(1100000)

causes

and

causes

of

all

the

conclusion

origin

(1100010)

positions

end

the

cursor

execution

character

from

the

including

will

the

the

character

position.

with

from

of

a

line.

is

of

present

the

At

the
be

EOM

symbol.

cursor

the

replacement

of

a

space

the

returned

the

command.

code

the

end

located

to

positions

the

command

present
At

the

to

5.5

ENTER

COMMANDS

There
terminal

5.5.1

'This

are

to

ENTER

command
beginning
than
an

will

it

before

forty

automatic

occur.

is

desired

a

return

transmitted

occur

on

a
following
start

5.5,.2'

Data
by

the

of

ENTER

will

first

the

The X address

the

message

line.

23,

place
will

modula

,If

the

below

cause

cursor

32.

three

permi~

enter

(1000000)

causes

at

the,

present

characters:are

over-flow
No

return

to

display

symbol

followed

line

line.

and

Subsequent

third

ADDRESSED

be

entered

character

counter

begins

a Y

address

will

the

screen.

entry

on a line

commands

display

data

to
command

occurs.

by

the

line.

LINE

on

after

will

at

the
is,

be

positioned

of

received
cursor

entered
the

more

a

return,

next

data

a

line

be

first

entered
Line

specified

acknowledged

data

to

position.

on a line

next

line

need

than

ten

If

th~

will

forty
50

will

(1010000)

whose

the

STX

reset

position

which

in

addresses

from

be

be

entered

characters

first
occur
begin

number

in

to

zero

is

an
by

by

the

computer.

displayed

If

more

of

of

the

characters

forty
on
at

is

the

message.

so

of

the

greater

imaginery
greater
the

line

the

the

display,

display

when

are

will

the

the

specified

that

addressed

than

than

address

32

5.5.3

This

screen
The
the
position
position

subsequent
by

NOTE:
the
last
command
cause

5.6

5.6.1

ENTER

command

beginning

first

position

this

On

first'line

line

the

EDIT

INSERT

ADDRESSED

provides

character

on

address

specified

lines.

instruction.

all

enter

of

the

given

on

cursor

COMMANDS

COMMAND

in

a

after

the

line.

will

and

The Y address

commands,

as

if

it

display.

the

bottom

to

go

POSITION

for

entering

specified

the

Data

be

displayed

continue

were

For

line

to

the

(1110000)

(1010001)

of

position

STX

command

following

beginning

across

counter

the

terminal

immediately

example,

of

the

home

position.

data

the

a

display

on

of

a

specifies

the

at

line

is

unaffected

will

after

return

the
line.

X

the
and

treat

the

will

on

This

inserted

and

location
character
the
to
the

In
and
end

command

causes

conclusion

the

operator

the

all
of

onto

all

to

be

in
location
format

characters

the

variable

causes

a

display

remaining

moved

the

right

of

of

or

computer

mode

a

one

this

the
the

moved

field.

space

line

characters

character
most
command
space

to

space

right

character

at

the

position

the

character

enter

character

one

location
to

to

is

cursor

a

new

place

code

the

the

right.

discarded.

is

code

character.

is

inserted

until

to

be

of

right

returned

to

the

of

The

permit

the

cursor
this

At

5.6.2

This

to
located
to
is
the
line.

command

be

inserted

be

pushed

deleted

cursor

5.6.3

This
location

and
cursor
conclusion
the
coded
this

may

field

command

all

location

character

line.

be

up

INSERT LINE

causes

on

and

causes

down
from
is

In

the

DELETE

of

subsequent

to

be

of

deleted

to

memory.
located
format

COMMAND

causes

the

cursor

moved

this

at

which

is

In

the
and

the

cursor

COMMAND

a

line

the

line

all

subsequent

one

line.
at

mode

(1110010)

the

character

to

characters

one

position

command

the
inserted
format
all

characters
are

(1110001)

of
where

The

At

the

the

start

this

be

deleted

the

delete

as

mode

moved

space

the

lines

last

conclusion

of

command

located

to

the

to

the

cursor

occurred.

the

last

only

in

to

code

cursor

below

line
the

is

from

right

left.

is

character

variable

the

the

left.

characters

is

presently

this

on

the

of

this

new

at

returned

variable

inserted

invalid.

the

the

display

of

At

A

space

data

the

line

display

command

preset

the

to
on

5.6.4

This

the
this
of
position

invalid

5.7

These

DELETE

command

line

line

this

DISPLAY

characters

LINE

causes

signified

are

pushed

command

on

the

in

format

CONTROLS

COMMAND

the

by

the

cursor

line

mode.

can

erasure

the

up

one

just

be

contained

(1110011)

cursor.

line.

is

located

deleted.

of

as

all
All
At

This

part

characters

lines

the

conclusion

at

the
command

of

below
starting

is

any

text.

on

5.7.1

SET BLINK

(0010010)

This
designated
time
conclusion
one

5.7.2

This
cursor

the

5.7.3

This
Data
position

cursor

Data

command

a

character

character

CLEAR

command

location.

cursor

CURSOR

causes
is

will

is

5.7.4

causes

as
of

BLINK

resets

is

the

unaffected.

on

the
go

unaffected.

CURSOR

the

a

blink

is
the
position.

position

located

command

(0010011)

the

At

the

incremented

LEFT

to

RIGHT

(0011101)

cursor

line

the

If
before

last

(0011100)

present

at

the

blink

conclusion

one

to

move

the

cursor
the

position

cursor

so

data

this

cursor

control

character

one

position
was

key

location

will

position.

is

incremented

for

of

this

location.

on

was

operated,

on

that

blink

the

present

command

to

the

leftmost

line.

to

At

the

be
any
the

left.

the

This

Data
position
cursor
Data

causes
is

5.7.5

Moves

line.

5.7.6

Moves
line
on

the

the

screen.

5.7.7

Moves

unaffected.

of

will

is

unaffected.

CURSOR

the

Data

CURSOR

the

down.

bottom

RETURN

the

the
the

go

cursor

is

cursor

Data

cursor

cursor

line

to

the

UP

(0010110)

to

the

unaffected.

DOWN

line,

(0010111)

to

the

is

unaffected.
it

(0001010)

to

the

to

If

the

before

first

same

same

will

first

move

cursor
the
position

position

position

go

one

position

was

key

If

to

the

position

was

of

on

on

the

on

the
operated,
the

the

the

cursor

first

on

the

to

the

rightmost

the

same

line

line.

preceeding

next

was

on

next

right.

line.

5.7.8

The

character
defines
and

the

~

the
end

LINE

is

end

of

(1111111)

entered

of

a

a

field

line

if

on

the
during
in

the

screen.

transmit

format

This

commands,

mode.

character

5.7.9

Moves
on

5.7.10

Moves
if
will

5.7.11

The
Format
Fields.
to

cursor

the

cursor

cursor

go

Tab

move

HOME

(0011011)

to

screen.

BACKSPACE

back

is

in

to

the

TAB

(0001001)

Command

Mode

to

Execution

to

the

last

facilitate
first

field.

5.8

Data
that

PARTY

Bus

- IDIBON

transmit

LINE SIGNALS

data
DELTA I controller.
bit,
the
longitudinal

IDIBIN

parity

is

bit

the

pary

the

first

Data

(0001000)

one

the

first

position

is

used

of

to

between

least

(ignored

check

position'of

is

unaffected.

position.

position

of

the

when

the

position

the

Tab

the

location
Command

of

IDIB7N -eight

peripheral

IDIB7N

is

the

significant

by

the

controller

(LRCC)

is

the

Data

of

is

the

same

display

causes

the

next

bidirectional

devices

most

bit

utilized).

first

unaffected.

line,

line.

is

in

of

Variable
variable

significant

and

unless

line

it

the

the

cursor

and

the

IDIBON

data

lines

is

Control

signals
signals

Bus -ten
between

are

INCKIN

described

Input
by
of
entered
must
at

INDKOTN

Output
the
to

Information

is

CKRN

lines

the

DELTA 1 and

clock.
the
time

be

the

Delta

place
valid

true

that

as

transmit

follows:

,This

Delta

that
into
true

I
new
the
until

peripheral.

clock.

I

and

a

word

to

for

that

until

I/O

signal

and

defines
data
controller.

a

This

causes

on

the

be

sent
period

the

or

receive

devices.

is

is

available

CKRN

is

signal

the
Data
to

the

of

INCKOTN

The

'received

the

period

This

received

is

received,by

controller

Bus.

peripheral

time
is

from

removed.

control

to

be

signal

CKRN

Clock

the

DELTA I and
when
when

input

output
signal
the

INCKIN

lasts

response.

data

data

goes

true

or

for

250

This

signal
defines
has

been

is

available.

250

nanoseconds

INCKOTN

goes

nanoseconds.

to

a

received

true

is

sent

peripheral

and

This

after

and

by

SENDEN

COMEN

~~ITEN

DATAVLN

Send/Receive.
by

the

DELTA I and

whether

from

will

after
becomes

Command
that
sequence
enable
prior
least

the

or

to

change

the

true
Enable.

the

first

be

signal

to

the

until
peripheral.
next

Transmit

INCKIN

enable.
characteristics
required
a

transmit.

Data
by

the
when
next
goes
remains

in

Available.

DELTA I and

the

data

INCKIN

false

false
completed
the

data

transfer.

This

next

controller.

state

INCKIN

if

a

word

a

command.
must

first

a

CKRN

It

may

or

INCKOTN.

similar

addition

bus

or

INCKOTN.

as

either
until

the

operation

signal

defines

data

about

or

change

The

of

be
INCKIN
is

stay

This

This

defines

is

the

is

transmitted

to

a

transfer

The

500

INCKOTN

is

is

signal
nanoseconds
signal

expected.

DELTA I expects

every

The

true

transmission

command

from

signal

received

true

signal

to

if

the

signal

available

This

clock

by

until

has

COMEN

command

is

transmitted

to

a

peripheral

for

signal

goes

true
controller
associated

peripheral

to

be

just

at

the

the

and

is

is

the

and
has
with

INTRN

VRCERN

Interrupt

by

the
when
This
of

and

in

signal

the

is

Parity
by

the
during

the

controller

(transmit

of

the

for

received

normally

Reset.

DELTA I and

time

last

250

Error.
DELTA I controller
a

message

screen

message

used

tionscontrollers

This

defines

the

message

occurs

CKRN

at

of

nanoseconds

This

transfer

to

retransmit

only)

or

respond

messages.

with

the

only.)

signal

the

a

message

long.

signal

at

serial

to

has

leading

is
at
and

the

with

(This

is

transmitted

a

peripheral

been

completed.
edge

transfer

received

any

time

causes

a

message

completion

a

NAK
signal
communica-

is

RESETN

Reset.

the

when

on

the

from

the

flags

This

DELTA 1 controller

an

operator

Keyboard.

the

peripheral.

controller

to

an

signal

to

initial

is

transmitted

to

depresses

It

may

This

reset

state.

peripherals

the

also

signal

all

control

RESET

be

by

Key

received

causes

IREQ

lACK

ICL

ICP

Interrupt

generated

and

when

for

service

Interrupt

generated
response
the

I/O

interface
Interrupt

ated
clock

by

the

controller.

this

signal

Interrupt
generated

when

used

its

to
interface
unit
FF

be

must

at

the

> 1 < 2

request.
by

the

true

indicates

is

being

Acknowledge.
by

the

to

an

IREQ

unit

is

controller.
clock.

the

I/O

request

When

is

not

complete.

by

the

operation

reset

all
controllers.
reset
same

times

time.
the

This

interface

made.

Input/Output

and

ready

unit

This

FF's

the

to

signal

and

in

lACK

present.

This

interface

is

complete.

request

its

request

This

ICL

time.

signal

controller

that

This

a

signal

indicates

respond

is

used

the

is

signal

controller

FF's

The

serviced
storage

pulse

is

request

unit

in

that

to

is

gener-

to
interface
true,

is

It

in

all

must

is

the

is

Function
peripheral
are

related

available

Bus -Three

to

initiate

to

up

to

XMITSWN

PRINTSWN

READSWN

Table

ing
DELTA
control

5.1

external

1.
and

defines

peripherals

Figures

data

lines

keys

10

on

can

Transmit

transmitted
operator

signal

second.

Print

initiated
Read

Switch.

initiated

the

5-1,

symbols

that
some
the

action.

keyboard.

optionally

Switch.

to

depresses

produced

Switch.

by

by

connector

or

their

5-2,

5-3

for

transmit

be

This

a

peripheral

the

is

true

Same

operation

Same

as

operation

pin

controllers

describe

the

party

pulses

All

these

(While

added.)

signal
XMIT

for

as

above
of

Print"

above

of

the

assignment

the

line.

lines

three

is
when
key.

2

micro-

only

only

Read

for

to

timing

to

an

The

Key.

the

a
are

Key.
connect-

of

5.9

The

rupt

INTERRUPT

interface

system
communicate
interface
sequent
using

no

other

it

(INTKN).

controllers

the

interrupt

controllers
which
with

controller
DELTA

higher

Figure

structure.

SYSTEM

permits

the

1.

It

priority

5.5

employ
several

display.

must

provide

(INTERN)

can

device

shows

to

only

a

interface

To

accomplish
a

indicate
provide
has

a

schematic

unit

sequential

signal

that

this

previously

devices

to

of

this,

all
it

is

signal

generated

the

inter-

to

each

sub-

not
if

Each

interface

party
As

shown

the

next

OPERATION

The

interrupt
operates
the

interface
is

set.
clock
the

request
INTEN
interrupt
ICL

to
first
available,
If

Rl

transfers

When

the
generates
those
FF.

Since
IREQ.
during
set

any
storage
in

their

line

clocks

in

Figure

controller.

system

as

follows.

controller,

On

the

(ICL) , the

storage

is

high

be

at

FF

(I)

removed

controller

the

is

set

only

priority

interface

an

ICP

in

other

all

The

interrupt

ICP,

allowing
request
FF

set.

order

controller

until

5.5

OF

INTERRUPT

shown

When a

next

trailing

request

FF

this

is

time,

set

from

goes

common

low
input

gate

to

the

controller

which
controllers)
request

FF
the

FF

where

Thus,
of

priority.

is

it

has

and

INTEN

SYSTEM

schematically

the

FF

is

is

set.

'the

causing

the

bus.

indicating

of

A

will

next

resets

and

FF's

are

will

ICL
there

multiple

prohibited

received

signal

request

request
edge

set

of

for

Since

IREQ
lACK

When INTKEN

gates

have

an

controller

finishes
all

request
its
reset,

then
to

return

is

be

a
requests

from

generating

priority.

is

the

in

Figure

is

determined
storage
the

interrupt

each

the

is
to

device

lACK

brought

go

low

of

that

A

and

output

its

priority

C

are

which

in

the

operation,

FF's

own

request

there

reset,

to

will

by

the

corresponding

will

INTKN

FF

and

low.

and

the

(even

storage

the

bus

be

of

5.5,

by

(SI

...

where
each

The

the

is

enabled.

chain.

it

be

no

CL

and

to

request

serviced

SN)

6.0

SERIAL

COMMUNICATIONS

Communications
troller
serial
two-wire
tions
plus

An

unpolled

is

always

communications

or

it

takes

a

number

transmission
his

action.

For

DELTA 1 displays

a

single

of

display
control
processor
controller
the

polling

play

messages

Because
bit

words

stimulates
Display
accessible

communication

controllers.

of

the

elicit

by

controller

available

of

the

can

an

Station).

via

between

half

four-wire

the

of

control

system

to

or

data

communications

means

command

which

nature
specify
IBM

2848

this

a

peripheral

duplex

this

system.

form

of

signals.

is

one

from

a

a

polled
line

The

processor
of

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and

specifies

it

is

for

-transmission?"

of

the

the

Display

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total

mode

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takes

For

eight-wire

in

which

computer

system

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address

polled

and

traffic

asking,

display

controller

Controller

number

in

excess

and

echoplex).

the

form

parallel

communication

operator

are

permits

system

requires

message

the

address

"Are

command,

address

of

of

the

display

of

communica-

requests

initiated

a

large

is

that

from

which

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and

display

16,000.

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either

upon

the

use

number

under

the

the

display

identifies

of

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any

two

seven-

(this

a

2260

controllers

con­a

for

of

the

data

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A

polled

system
simultaneously
processor.

plex

communication
multi-display
mitting

data

receiving

display

duplex

6.0.1

The
chronous

controller

operation

COMMUNICA'TION

display

or

Asynchronous

patible

or

202D

either

with
to

private.

allows

transrnit

If

the

terminals

or

polling

information

is

con-'troller
asynchronous

Moderns.

Bell

permit

line

the

display

and

control

computer

channel,

to

the

messages

from

another

stations

permitted.

INTERFACE

will

modes

The

display

data

sets

asynchronous

or

direct

controller

receive
the

communications

computer

to

even

themselves,

operate

of

communication.

controller

Model

103A

communication

dial

switching

data

to

employs

permits

one

station
though

only

using

or

and
a

half

either

is

Model

over
networks.

to

full

from

while

at

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non-

from

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trans-

the

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202C

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1,800

ous

baud,

communication
baud.
these

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networks

display
remove
cation

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the
over

202C

and

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controller

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a

direct

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on

the

the

on

103A

at

rates

interface

permits

dial-up

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the

2020

private

permits

up

also

connection.

asynchronous

networks

modem

line

communication

to

150

baud.

has

available

for

providing

at

permits

network

serial

information

rates

up

asynchron-

up

1,800

on

either

an

option

communi-

to

to

of

to

6.0.2

The

SYNCHRONOUS

display

interface

mission

connections.
For

synchronous

Model

in

20lA

either

dial-up
When a

ment,

code
prior
an

asynchronous

6.1

The

the
IBM
that

synchronous

the

which

to

SERIAL

DELTA 1 terminal

same
2265

the

compatible

this
ing
to

compatibility,

to

a

that

consists

SOH

Command),

is

capable

a

shared

These

listed
the
the
of

commands

in

terminal

computer

the

screen,

INTERFACE

controller

using

speeds

synchronous

of

up

communicacions

a

or

Modem

two-wire

private

can

line

Modem

message

is

the

message

the

must
ASCII

modem.

CONTROLLER -IBM

communications
Display
IBM

basis

with

Display

with

four-character

which

of

line,

the

a

communications
two

of

recognizing

and
are

section

data
onto

and

IBM

address

the
the

5.
to
the

absolute

also

permits
modems

to

9,600

be

used.

or

four-wire

networks.

is

used

also

contain

SYNC

normally

with

this

dialogue

a

(2845)

may

be

replaced

the

DELTA 1 terminal.

the

terminal
polling

terminal

characters

and
fourth
communications

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the

provide

computer,

terminal

positioning

operation

permitting

baud

at
This

using

2,400

modem

system

in

a

polling

a

command

repeated

required

COMPATIBLE

controller

and

features

Controller.

on

is

capable

sequence

expects.

command

character

which
decoding
character

commands
for
entering

screen,

of

trans-

privat~

baud,

can

on

the

be

either

environ-

synchronization

four

with

the

use

operates

as

a

that

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plug

of

means

to

To

provide

respond-

is

sequence

(EOT

the

terminal

for

operation

is

a

command.

and

transmission
erasing

of

the

data

from
portions
cursor.

a

serial

line

Bell

used

the

times

of

with

the

plug

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or

on

are

of

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If

the

is

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requested
text
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symbol

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character

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transmit

the

transmit
to

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if

is

nothing

transmit,

(STX)

code.

the

button

condition

and
The

XMIT

to

be

has

been

it

will

the

message

unit

key

will

has

transmitted.

depressed

when

respond

respond

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the

terminal

with

followed

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pressed

and

with

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by

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the

unit

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start
and

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indicating

of

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the
respond
received
sage
the

screen
send

6.1.2

To
over

was

terminal

only).

an

ASCII

establish

communication
applications
directly

traffic
and

the

of

six

of
These
all

six

the

maintain

and

I/O

The

definition
given
Figure

below.

6.1

unit

either

without
received

EOT

character

to

the

is

necessary.

remote

the

codes,

control

an

orderly

devices

transmits

with

error)

will

If

with
retransmit

the

an

its

ACK

or

errors).

ACK

and

COMMUNICATION

and

maintain

lines,

(where

lines),

more

than

a

Line

display

ASCII

used

system

communication

singly

functions

attached

of

The

flow

each

code

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to

of

structure

message,

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an

NAK

If

the

entire

is

received,

unlock

the

CONTROL

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orderly

particularly

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method

of

traffic

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controlled

or

in

necessary

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the

communication

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for

the

computer

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(indicating

the

NAK

message

the

keyboard.

CHARACTERS

flow

device

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between

control

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sequences,

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establish

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each

characters

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message

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is

received,

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attached

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computers

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perform

the

channel

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given

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(XMIT

will

use

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STX

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characters

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ETX

entity

(End
character
acters
entity.

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ACK

(Acknowledge)
character

affirmative

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control

as

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that

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Text)

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transmitted

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character

Text)

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to

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communication

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terminate

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communication
by a receiver

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transmitted

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communication

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sender.

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transmitted

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sequence

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control
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mit

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used

characters

address.

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(addresses).

instead
addressing
operations.

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at

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which

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beginning

constitute

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communication

indicate

the

which

texts

of

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as

in

of

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the

con­a
a

start

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6.1.3
Each

is
format

sequence
the
The
the

ADDRESSING

command

transmitted

called

prepares
address,
following
four

A.

bytes

First

sequence

cation

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sequence

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address

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sequence
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Each

of

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parity-checked
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character)

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an

and

describes

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Byte

control
Byte

Byte

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the

selected

four

by

SEQUENCES

by

four

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the

display

specifies

the

addressing

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The

must

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contains

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The

character

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specifies

bytes

the

DELTA 1 as

•

the

computer

sequential

sequence.

the

the

specific

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character.

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second
an

third

of

The

fourth
the

display.

of

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bytes

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accept

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sequences.

byte

an

byte

address.

byte

the

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command

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of

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function

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to

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EOT

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to

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executed

sequence

display

defines

performed.

each

communi-

second

selected.

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is

of

6.1.4

6.1.4.1

Figure
data

SEQUENCE/RESPONSE

TRANSMIT

6.1

is

commands

DATA

a

sequence/response

from

COMMANDS

the

computer.

DIALOGUE

diagram
These

are

for

required

transmit

in

a

polling

An

EOT

the

next

address.

and

if
fourth
to

the

sent

for

character
The

terminal

transmit
the

transmit

send
the
the

an

fact

operator

terminal

start
addresses

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the

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will

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be
an
parity

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the
character
terminal.

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could

button

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that

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of

text),

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message

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SOH)

command

characters

two

characters

proper

address

received

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communications

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any

will

respond

has

been

mode.

character

the

terminal

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character

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sequence

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of

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dependent

pressed

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it

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back

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has

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a

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second

transmitted

command

the

terminal

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redundancy

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the

computer.

cause

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the

TA2)

will

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decoded
character
commands.

several

putting

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no

the
computer
data

transmit

command

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to

it

sequence),

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terminal

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be

coded

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transmit

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button,

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to

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check

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machine

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This

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in

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the

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text)

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terminal
response
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and

begin

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command
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6.l.4.2ENTER
Figure

Commands

cations
terminal
it

will

If

so,

6.2
from

sequence

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decode

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character.
detection
to

the

computer
transmit
commands

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which

remains

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transmission

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then
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be

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see

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Upon

of

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the

transmission,

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unlatch

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terminal

both

communications.

turned

off

mode.

DATA

a

COMMANDS

sequence

response

computer.

will

to
decode

receipt

correct
an
character

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character.

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of
address,

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will
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mode

computer

terminal

text
respond

computer

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on

the

machine

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terminal
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data

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again.

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and

line

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character

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address
addressed.

Command

terminal

computer

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used

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specific

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send

the
light
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ter-

on

return

Enter

communi-

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will

those

line

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or

character

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be

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then

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the

computer
will
Enter

remove

Data
controller
may

(via

software)

position

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indicating

should

the

keyboard

condition.

it

will

on

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terminal

respond

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respond
retransmit

the

line

command

will

receipt

to

that

and

the

an

error

with

or

followed

follows

respond

of

the

with

terminal

was

an

NAK

terminate.

by

the

with

message

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EOT

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detected
and

the

the
text
an

ACK

and

which

the

by

computer

text
and

the

6.1.5
Vertical
As

for

flag
character.
even

Lon~itudinal

An
output

ETX.

first
difference

the

first

Error

If

troller
message

cause

ERROR

Parity

each

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character

parity.

set

parity

accumulator

data

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longitudinal

received

sets

contents

character
Retransmission

the

error

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is

complete.

retransmission

CONTROL

and
As

is

Parity

from

of

flag
respond

is

received

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the

character

each

character

generated.

is

used

the

first

character

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error

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accumulator

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set

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upon

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keep

character

accumulator

after

flag.

an

ETX.

during

an

The

computer
detection

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error
replaced

is

sent

account

an

During
is

receipt

NAK

character

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~~dem

is

detected
by a CAN

to

of

after

is

compared

ETX

(LRCC)

data

transmitted

of

may

be

of

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it

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(,)

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modem

all

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STX

with

and

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data

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after

programmed

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checked
error

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and

to

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con-

the

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the

to

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the

computer
with
mitted.

a

an

XMIT

NAK

the

(This

SCREEN.)

responds
controller

is

only

to

valid

the

causes

if

receipt

the

the

transmit

of

a

message

message

to

be

command

trans~

is

6.2

The

the

operate

plex.
computer
vate

TELETYPE COMPATIBILITY SERIAL CONTROLLER

DELTA 1 terminal

same

communications

with

It

via

line
connected
are

full

ally

duplex

available.)

is
or

to

either

designed

a

103

the

dial-up

an

acoustic
at

with

of

to

serias

110

this

dialogue

two

options

communicate

Dataphone

network.

coupler.

baud.

controller

as

a TTY.

-­using

It

The

(Up

to

operates

It

Normal

with

a

or

remote

either

may

also

communications

300

baud

option-

can·

Echo-

a

be

with

pri-

6.2.1

In

of

typed

The

error

and

ECHOPLEX

this
data

on

computer

character

displays
position.
receipt

For

TTY
from

a

6.2.2

While

in

the

"this
taneously.
characters)
create

as

a

block

initiated

mode

to

be

the

the
keyboard

returns

it.

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of

a

word

compatible

remote

NORMAL

controller

mode

data
Received
as

a

display

to

by

the

MODE

communications

entered

on

it

either

(CAN,

a

vertical

The

the

if

display
CAN

communications

source

is

MODE

operates

cannot

data

it

is

received.

and

then

the

remote

operator

the

CRT.

is

transmitted
the

a

transmission

parity

character

not

permitted.

be

sent

is

displayed

after

computer.

depression

line

As

same

advances

error

initiation

with

a

and

The
editing

This

is

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each

to

character

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detected

is

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received

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operator

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action

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only
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cursor

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of

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may

transmit

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source

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computer.
or

an

detected)

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on

commands

modem

control

it

is

key.

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the

operator

the

transmit
mation
EOM

transmitted

symbol

operator

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the

operator

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transmit

tion

mode

on
only

the

transmitted)

command

to

after

command

screen

variable

•

has

the

latest

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has

selected

is

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that

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is

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transmitted

data

a

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information

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the

display).

selected

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the

Conversational

MESSAGE

symbol

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SCREEN

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line

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and

all

also

characters

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by

in

mode

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previous

the

mode

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a

format

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by

For
error
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parity)

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of

cause

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data

transmitted

ETX

character.

the

detection

a

CAN

symbol

data

(')

of

is

bracketed

a

parity

to

replace

6.3

6.3.1

SERIAL INTERFACE

GROUNDS

Circuit
This

minal

conductor

frame.

grounds
Circuit
This

conductor
potential
AA

(Protective
equipment
and

it

shall

cuit
This

AA

wire
installation,
regulations
into

electronic

AA

as

AB

this

by

--

Protective

It

required

--Signal

for

all

be

means

strap

as

or

shall

may

be
be

by

Ground

establishes

interchange
Ground).
circuit

possible

of

a

wire

can

be

may

be

to

minimize

circuitry.

(RS-232B)

Ground

electrically

further

applicable

the

In

the

shall

to

be

connect

strap.

connected

required

the

connected

regulations.

common

circuits

data
brought

this

or

removed

to

meet

introduction

bonded

ground

except

to

to

external

reference

the

circuit

communication

to

one

point,

point

at

to

the

applicable

of

noise

ter-

cir-

6.3.2
Circuit
Direction:
Signals

are
transmission

Ther
dition
words,

DATA

BA

on

connected

terminal

during
or

at

SIGNALS

-­From

this

to

such

transmitted.

The

marking

total

duration

or

Transmitted

Terminal

circuit

to

the

transmitting

remote

equipment
any

time
other

spacing

of

each

Data

are

data

holds

interval

times

signal
signal

generated

signal

processing

Circuit

between

when

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element.

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converter

equipment.

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in

marking

characters

signals

.

is

held

terminal

are

to

for

and

for

con-

or

be

the

Circuit

BB

--Received

Data

Direction:

Signals
signal
from

In

hold

in

remote

half-duplex

marking

the
service,
tor

transmitted

A

data

Circuit
The

marking

for

the

6.3.3

Circuit

Direction:

To

on

this

converter

equipment.

condition

OFF

condition.

the

Received

set

equipped

BB

in

or

total

CONTROL

CA

--

From

Terminal

circuit

in

service,

signals

the

marking

spacing

duration

SIGNALS

Request

Terminal

Computer
are

response

the

on

Circuit

Alternatively,

Data

(e.g.,

for

Transmit-Only

condition

signal

of

each

to

Send

generated

to

data

receiving

circuit

for

condition

signal

CA

may

local

at

by

the

signals

data

(Request

in

half-duplex

be

used

copy).

service

all

shall

element.

receiving

received

set

to

shall

times.

be

shall

Send

to

held

moni-

hold

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equipment
For
carrier

tion

The

equipment
being
all
ON

condition

(Clear

In

half-duplex

data

tion

The

to

signals

(Received

On a

sively

on

to

example,

signal

of

Circuit

ON

condition

has

transmitted.

data

on

to

set

in

shall

above

multipoint

carry

Send),

conditions
Data)

communication

used
local

by

data

each

this

condition

if

shall

information

Circuit

is

service,

the

hold
on

Circuits

.

data

equipment

data

set

to

circuit

are

the

the

data

set

be

transmitted

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is

maintained

ready

The

signal

BA

(Transmitted

maintained

and

Circuit

the
receive-data
the

data

set

shall

BA

communication

signals

transmitted

stations,

processing

transmit.

generated

local

data

contains

whenever

for

converter

on

Circuit

CC

(Data

OFF

condition

condition,

in

the

be

established

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channel

Circuit

terminal

by

the

set

to

a

modulator,

during

the

the

terminal

transmission

shall

Data),

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Set

while

Circuit

Ready)
shall

and

the

transmit-data

without

Data)

which

by

may

several

CA

to

condition

terminal
transmit.

ON

condi-

or

transmit

the

CB

.

hold
ON

condition.
regard

and

BB

succes-

data

shall

the

the

condi-

be
its

Circuit

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Clear

to

Send
Direction:
Signals

data
The
Circuit

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a

communication

minal.

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also

In

Receive-Only

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OFF

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Transmit-Only

set

ON

condition

to

the

at

on

CA

When

turned

munication

tion
ON

Circuit

at.all

condition

CC
Direction:
Signals

set

to

on

indicate

To

this

to

indicate

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data

Circuit

all

equipment

times,

at

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this

Terminal

circuit

that

is

a

response

to

communication

channel

CA

OFF.

service,

times.

or

Full-Duplex

is

then

all

times.

Data

Set
Terminal
circuit

that

it

are

it

Send),

to

a

is

turned

the

arranged

Circuit

Ready

are

is

ready

generated

is

prepared

to

the
delayed
equipment

remote

OFF,

data

set

service,

to

CB

generated

to

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ON

as

data

Circuit

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be

in

shall

by

operate.

the

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to

transmit

condition

may

for

be

establishing

processing

hold

if

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transmit

be

held

the

local

on

appropri-

CB

shall

Circuit

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in

data

data.

ter-

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the

The

OFF

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B.

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ON

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This

of

the

circuit

local
interpreted
channel

status

of

condition

Any

abnormal

or

impairs

the

class

That

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ternate

That

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voice

the

communication

"on

hook")

shall

shall

data

either

has

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established

remote

shall

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or

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service

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test

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means

of

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local

data

channel

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appear

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set.

as

used
an

only

The

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indication

station

to

indicate

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function

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channel

communication

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at

all

other

to

indicate

condition

that

to

a

remote

or

equipment.

which
associated

is

connected

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data

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a

station

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disables

with

switched

(e.g.,

set

to

to
al-

a

is

times.

the

status

not

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communication

or

the

6.3.4

ADDITIONAL

CONTROL

SIGNALS

Additional

systems:

Circuit

CD

Direction:

Signals
the

ON

condition

to

the

is

equipped

to

this

on

signal

communication

interface
origination
maintain
means.

the

When
answering

be

arranged

The

OFF

condition

communication

A.

Freeing
or

interchange

--

Terminal

From

this

circuit

converter

causes

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unit),

connection
the

of

received

to

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the

channel.

for

call

(e.g.,

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station

calls,

only

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line

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circuits

Ready

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communication

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established

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equipped

connection

in

response

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for

such

for

terminal

may

to

converter
However,

or

condition

signal

reasons

alternate

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be

required

control

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to

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converter

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some

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to

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signal

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converter

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terminal

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indication

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OFF

delay.
is

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of

6.3.5

The

ELECTRICAL SIGNAL CHARACTERISTICS

maximum

(Protective

interchange

maximum

ductors
ampere.

For

Circuit
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dition
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plus
During

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used
paper
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the

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circuit

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than

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the

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with

CIRCUIT INTERFACE
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design

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ENABLE

(XW,TEN)

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FIGURE

5.5

Interrupt

request

from

interface

Request

SEQUENTIAL

IACK(L)

INTKN

I

r

I-

I .

I :

I

INTKN

PRIORITY

I

INTERRUPT SCHEMATIC

CL(L)

Reset

Interface

opere

:i.ogic

t----1a__-f

INTEN

_._J

Interface

oper.logic

INTEN

DIAGRAM

IREQ(L)

ICP(L)

H

(1)

r-I
r-I

a

H

+J

s::

a

o

(1)

o

cd

4-1

H

(1)

+J

~

H

H

(1)

r-I
r-I

a

H

+J

s::

a

o

(1)

t)

cd

4-1

H

<l)

+J

H

~

c=J

Bus

connections

FIGURE

6.1

SEQUENCE/RESPONSE

EOT
TERMINAL
TERMINAL

COMMAND

ADDRESS
ADDRESS

I

TRANSMIS'SION

NO

ERROR?
YES

DIAGRAM

(TA-1)
(TA-2)

FOR

I

I

I

I

I

I

I

TRANSMIT

YES

J

STX

TA-2

TEXT

ETX
LRC

DATA

I

COMMANDS

TERMINAL

TRANSMIT

FROM

IS

THE

IN

MODE

EOT

COMPUTER

THE

NO

ACK

i

NAK

I

COMPUTER

I

I

I

I

I

I

I

I

I
I

_.

~

EOT

TERMINAL

FIGURE

6.2

SEQUENCE/RESPONSE

SOH
TERMINAL
TERMINAL
COMMAND

STX

ADDRESS

TEXT

ADDRESS

ADDRESS

*

DIAGRAM

(TA-l)
(TA-

2)

FOR

ENTER

I

I

I

I

I

I

I

DATA

COMMANDS

FROM

ACK

I

1

THE

COMPUTER

ETX

LRC

EOT

*

Where

applicable

COMPUTER

TERMINAL

1

ACK

I

FIGURE

7.1

SEQUENCE/RE~PONSE

COMMAND

DIAGRAM

VIA A

FOR

TRANSMIT

PARALLEL

I

DATA

INTERFACE

YES

STX
TA-2

TEXT

COMMANDS

TERMINAL

TRANSMIT

FROM

IS

MODE

IN

THE

THE

NO

EOT

COMPUTER

TRANS

NO

ACK

ERROR

YES

LNAK

COMPUTER

I

I

:

I

ETX
LRC

I

EOT

TERMINAL

FIGURE

7.2

SEQUENCE/RESPONSE

COMMAND

I

STX

ADDRESS

TEXT

.;,

DIAGRAM

VIA

A PARALLEL INTERFACE

FOR ENTER

I

I

I

I

I

I

I

I

DATA

COMMANDS

FROM

ACK

I

THE

COMPUTER

ETX
LRC

I

loT

*

Where

applicable

COMPUTER

I

I

I
I

I

I
I
I

ACK

TERMINAL

BITS

7654321

FIGURE 8

DELTA 1 CONTROL

CODES

0000000
0000001
0000010
0000011
0000100
0000101
0000110
0000111
0001000
0001001
0001010
0001011
0001100
0001101
0001110
0001111

·0010000
0010001
0010010
0010011
0010100
0010101
0010110
0010111
0011000
0011001
0011010
0011011
0011100
0011101
0011110
0011111
0100000
0100001
0100010
0100011

0110000
1·000000
1010000

1010001
1100000
1100001
1100010

1110000

1110001
1110010
1110011

NUL
SOH
STX
ETX
EaT

ACK

Control
Control
Control
Control
Control

Control

Character
Character
Character

Character
Character

Character

BS
TAB
RETURN

SO

DISPEN

SI

DISPDN

DCO
SET BLINK

CLEAR
NAK

CURSOR
CURSOR
NORMAL
FORMAT

BLINK

Control

UP
DOWN
MODE
MODE

Character

HOME
CURSOR
CURSOR

RIGHT
LEFT

A/N

GR
TRANSMIT

TRANSMIT LINE

TRANSMIT X

TRANSMIT Y

MESSAGE

COMMAND

ADDRESS

ADDRESS
TRANSMIT DISPLAY
ENTER
ENTER Y
RESET X

COMMAND

ADDRESS

ADDRESS
ENTER X ADDRESS
CLEAR
CLEAR
CLEAR

INSERT

INSERT LINE
DELETE
DELETE LINE

DISPLAY
MESSAGE
LINE

COMMAND

COMMAND

COMMAND

COMMAND

COMMAND

COMMAND
COMMAND

COMMAND

COMMAND
COMMAND

COMMAND

COMMAND
COMMAND

FIGURE 9

67

r.:J

EJ69

0

~

~.~

n~~DE78

79

80

81

r~~8

I(NUll

~

(NUl

~

~

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~

ElJ~Lj~

~

I(NUlll(NUlIF~b~@j

o

00

ON

LINE

PRINT

READ

I

~

65

00

CONV

FORMAT

MODE

MODE

o

GRAPHIC

~~6

~~~.

W

EJ~E3

W

~Dalt:a

Data

•

~o"t:a~:'~B

PARTY

TABLE
LINE

5.1
CONNECTOR

I/O

NAME

. DESCRIPTION

IDIBON
IDIBON-R

IDIB1N

IDIB1N-R

IDIB2N
IDIB2N-R

IDIB3N
IDIB3N-R

IDIB4N
TDIB4N-R

IDIBSN
IDIBSN-R

IDIB6N
IDIB6N-R

IDIB7N

IDIB7N-R

DATA

RETURN

DATA

RETURN

DATA

RETURN

DATA

RETURN

DATA

RETURN

DATA

RETURN

DATA

RETURN

DATA

RETURN

BIT

BIT

BIT

BIT

BIT

BIT

BIT

BIT

(parity)

0

(LSB)

1

2

3

4

5

6

(MSB)

7

CONNECTOR

PIN

A

L

B

M

C
N

D

P
E

R

F

S

H

T

J

U

VRCERN
VRCERN-R

ERROR

RETURN

INCKIN INPUT
INCKIN-R

INCKOTN
INCKOTN-R

DATAVLN
DATAVLN-R

INTRN

INTRN-R

CKRN
CKRN-R

XMITEN

XMITEN-R

COMEN

COMEN-R
RESETN

RESETN-R

RETURN

OUTPUT

RETURN

DATA

RETURN

INTERRUPT

RETYRN

CLOCK

RETURN

XMIT

RETURN

COMMAND

RETURN

RESET

RETURN

CLOCK

CLOCK

AVAILABLE

RESET

RESPONSE

ENABLE

ENABLE

K

V

W

a

X

b

Y

c

Z

d

e

h

f

j

k

P

1

r

TABLE

PARTY

LINE

5.1

I/O

(CONT. )

CONNECTOR

~DBlta

Data

A

~o'!.;'o~:,,~9

NAME

XMITSWN
XMITSWN-R

PRINTSWN PRINT
PRINTSWN-R

READSWN
READSWN-R

SENDEN
SENDEN-R

VCCPL

GNDPL

DESCRIPTION
XMIT

RETURN

RETURN

READ

RETURN

SEND/RECEIVE

RETURN

+5

VOLTS

o

VOLT

SWITCH

SWITCH

SWITCH

S

PO~.vER

RETURN

CONNECTOR

PIN

m

s

DD

t

n
u

EE

V

HH

JJ

~Delt:a

Cata

•

~o~:o~:'t~B

PARALLEL

TABLE

7.1

INTERFACE

CONNECTOR

NAME

DILOON
DILOON-R

DIL01N
DIL01N-R

DIL02N
DIL02N-R

DIL03N
DIL03N-R

DIL04N
DIL04N-R

DIL05N
DIL05N-R

DIL06N
DIL06N-R

DIL07N
DIL07N-R

DESCRIPTION
DATA

INPUT

RETURN

DATA

INPUT

RETURN

DATA

INPUT

RETURN

DATA

INPUT

RETURN

DATA

INPUT

RETURN

DATA

INPUT

RETURN

DATA

INPUT

RETURN

DATA

INPUT

RETURN

BIT

BIT

BIT

BIT

BIT

BIT

BIT

BIT

(parity)

0

(LSB)

1

2

3

4

5

6

7

CONNECTOR

PI1
PI1

PI1
PI1

PI1
PI1

PI1
PI1

PI1
PI1

PI1
PI1

PI1
PI1

PI1
PI1

PIN

A
L

B

M

C

N

D

P

E
R

F

S

H

T

J

U

DOLOON
DOLOON-R

DOL01N
DOL01N-R

DOL02N

DOL02N-R
DOL03N

DOL03N-R
DOL04N

DOL04N-R
DOL05N

DOL05N-R
DOL06N

DOL06N-R
DOL07N

DOL07N-R

INCKN
INCKN-R

DATA

RETURN

DATA

RETURN

DATA

RETURN

DATA

RETURN

DATA

RETURN

DATA

RETURN

DATA

RETURN

DATA

RETURN

INPUT

RETURN

OUTPUT

OUTPUT

OUTPUT

OUTPUT

OUTPUT

OUTPUT

OUTPUT

OUTPUT

CLOCK

BIT

BIT

BIT

BIT

BIT

BIT

BIT

BIT

(parity)

0

(LSB)

1

2

3

4

5

6

(MSB)

7

PI1
PI1

PIl
PI1

PI1
PI1

PIl
PI1

PI1
PI1

PI1
PIl

PI1
PIl

PIl
PIl

PIl
PIl

K

V

w

a

X

b

Y

c

Z

d

e

h

f

j

k

P

1

r

TABLE

PARALLEL INTERFACE

7.1

(CONT. )

CONNECTOR

~Delt:a

Oata

£

~o~~o~~t~9

NAME

OUT,CKN
OUTCKN-R

DATAVLN
DATAVLN-R

INST INPUT

INST-R

VCCPI

GNDPI

DESCRIPTION
OUTPUT

RETURN

DATA

RETURN

RETURN

+5

VOLTS

GROUND

CLOCK

AVAILABLE

STROBE

SENSE

CONNECTOR

LINE

PIl
PI1

PIl
PIl

PIl
PIl

PIl
PIl

PIN

m

s

DD

u

n

t

HH

JJ

TABLE

7.1

(CONT.)

NAME
ADROON

ADROON-R
ADROIN

ADROIN-R
ADR02N

ADR02N-R
ADR03N

ADR03N-R
ADR04N

ADR04N-R
ADR05N

ADR05N-R
ADR06N

ADR06N-R

PARALLEL

INTERFACE

DESCRIPTION
ADDRESS

DATA

RETURN

ADDRESS

DATA

RETURN

ADDRESS

DATA

RETURN

ADDRESS

DATA

RETURN

ADDRESS

DATA

RETURN

ADDRESS

DATA

RETURN

ADDRESS

DATA

RETURN

BIT

BIT

BIT

BIT

BIT

BIT

BIT

CONNECTOR

(LSB)

0

1

2

3

4

5

6

CONNECTOR

PI2
PI2

PI2
PI2

PI2
PI2

PI2
PI2

PI2
PI2

PI2
PI2

PI2
PI2

PIN

A

L
B

M

C
N

D

P
E

R

F

S

H

T

ADR07N

ADR07N-R

IADROON

IADROON-R

IADROIN
IADROIN-R

IADR02N
IADR02N-R

IADR03N
IADR03N-R

IADR04N
IADR04N-R

IADR05N
IADR05N-R

IADR06N
IADR06N-R

IADR07N

IADR07N-R

ADDRESS

RETURN

INTERRUPT

RETURN

INTERRUPT

RETURN

INTERRUPT

RETURN

INTERRUPT

RETURN

INTERRUPT

RETURN

INTERRUPT

RETURN

INTERRUPT

RETURN

INTERRUPT

RETURN

DATA

ADDRESS

ADDRESS

ADDRESS

ADDRESS

ADDRESS

ADDRESS

ADDRESS

ADDRESS

BIT

7

BIT

BIT

BIT

BIT

BIT

BIT

BIT

BIT

0

(LSB)

1

2

3

4

5

6

7

PI2
PI2

PI2
PI2

PI2
PI2

PI2
PI2

PI2
PI2

PI2
PI2

PI2
PI2

PI2

PI2
PI2

PI2

J

U
K

V

W

a

X

b

Y

c

Z

d

e

h

f

j

k

P

ADRSYN
ADRSYN-R

ADDRESS

RETURN

SYNC

CLOCK

PI2
PI2

1

r

TABLE

PARALLEL INTERFACE

7.1

(CONT. )

CONNECTOR

~DBlta

Data

A

~,:!!~!,,~s

NAME

IURN
IURN-R

IUACKN
IUACKN-R

IARN
IARN-R

INTKN

INTKN-R

INTEN
INTEN-R

DESCRIPTION

INTERRUPT

RETURN

INTERRUPT

RETURN

INTERRUPT

RETURN

INTERRUPT

RETURN

INTERRUPT

RETURN

REQUEST

ACKNOWLEDGE

ADDRESS

ENABLE

ENABLE

REQUEST

REQUEST

TRANSMIT

CONNECTOR

PI2

PI2
PI2

PI2
PI2

PI2

PI2
PI2

PI2
PI2

PIN

m

5

n

t

DO

u

EE

V

FF

w