Anadex DP-9000 User Manual

82 pages

To Next Page

To Next Page

To Previous Page

To Previous Page

Page #25 background image

Loading...

Page #25 background image

2.9

SIGNAL

CONNECTIONS

Your

printer

has

provisions

for

selecting

one

of

three

standard

interfacing

methods:

parallel

bit,

serial

character

(Centronics

convention);

serial

character

serial

bit

(EIA

RS-232-C);

and

serial

character

serial

bit

(20-60

rna

current

loop).

Selection

of

the

appropriate

interface

is

made

by

internal

switch

con-

figuration

and

cable

connection

to

the

appropriate

connector.

The

parallel

connector

is

the

36

pin

connector

on

the

bottom

at

the

rear

left

of

your

printer.

NOTE

Any

time

the

printer

default

configuration

is

changed

by

changing

Sl,

S2

or

S3,

printer

power

must

be

cycled

OFF

and

ON

again

to

reinitialize

the

system.

2.9.1

PARALLEL

BIT,

SERIAL

CHARACTER:

This

interface

system

meets

the

compatipility

requirements

of

the

Centronics

parallel

interface

convention.

Many

computer

systems

using

a

Centronics

type

parallel

interface

do

not

have

the

full

synchronization

technique

called

for

in

the

convention.

Anadex

has

made

pro-

vision

for

these

situations

also

by

providing

a

special

"handshake"

signal.

For

full

utilization

of

capabilities

and

features

of

both

the

data

source

and

the

printer,

the

user

must

be

familiar

with

the

requirements,

limitations,

and

capabilities

of

both

systems.

CAUTION

WHEN

PARALLEL INTERFACE

IS

SELECTED

(83-1

OFF),

THEN

ALL

SECTIONS

OF

S3

MUST

BE

IN

THE

OFF

POSI-

TION.

Figure

2-5

shows

the

pin

connections

for

the

36

pin

parallel

interface

connector,

and

Figure

2-6

shows

the

timing

relation-

ship

of

the

'input

and

output

signals.

Anadex

provides

the

following

input/output

signals:

DBl

THROUGH

DB8

INPUT

-

Data

Bits

1

through

8 -

Characteristically,

Bit

8

is

a

parity

bit

or

special

purpose

bit.

This

bit

is

ignored

in

the

printer

logic.

Only

the

first

7

bits

are

used

in

the

128

chara~ter

ASCII

set.

Data

bits

should

be

active

high.

2-11

Table of Contents

Questions and Answers:

Need help?

Do you have a question about the Anadex DP-9000 and is the answer not in the manual?

Anadex DP-9000 Specifications

General

Brand	Anadex
Model	DP-9000
Category	Printer
Language	English