Epson C82307, C823088 User Manual

EPSON

32KB
Serial

Interface Card

C82307 *

C823088 *

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4000273
C01-00

FCC

COMPLIANCE STATEMENT

FOR

This equipment has been tested and found to comply with the limits for a Class B digital

AMERICAN

device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide
reasonable protection against harmful interference in a residential installation. This
equipment generates, uses, and can radiate radio frequency energy and, if not installed
and used in accordance with the instructions, may cause harmful interference to radio
communications However. there is no guarantee that interference will not occur in a
particular installation. If this equipment does cause harmful interference to radio or
television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following

measures:

—

Reorient or relocate the receiving antenna

—

Increase the separation between the equipment and receiver.

—

Connect the equipment into an outlet on a circuit different from that to which the
receiver is connected.

—

Consult the dealer or an experienced radio/TV technician for help

This device complies with Part 15 of the FCC Rules. Operation is subject to the following
two conditions:

(1)

this device may not cause harmful interference, and

(2)

this device must accept any interference received,

including interference that may cause undesired operation.

This digital apparatus does not exceed the Class B limits for radio noise emissions from

digital

apparatus as set out in the radio interference regulations of the Canadian

Department of Communications

Le présent appareil numérique n´émet
applicables aux appareils numériques
brouillage radioélectrique édicté

The connection of a non-shielded printer interface cable to this printer will invalidate
the FCC Certification of this device and may cause interference levels which exceed the
limits established by the FCC for this equipment If this equipment has more than one

interface

connector. do not leave cables connected to unused interfaces.

Seiko Epson Corporation shall not be liable against any damages or problems arising
from the use of any options or any consumable products other than those designated
as Original Epson Products or Epson Approved Products by Seiko Epson Corporation

All rights reserved. Reproduction of any part of this manual in any form whatsoever
without Seiko Epson’s express written permission is forbidden.
The contents of this manual are subject to change without notice.
All efforts have been made to ensure the accuracy of this manual. However, should any
errors be detected, Seiko Epson would greatly appreciate being informed of them.
The above notwithstanding, Seiko Epson can assume no responsibility for any errors

in

this manual or their consequences

Copyright © 1990

FOR CANADIAN

pas de bruits radioélectriques dépassant les limites

de Class B prescrites dans le règlement sur le

par le Ministére des Communications du Canada.

WARNING

NOTICE

by Seiko Epson Corporation, Nagano. Japan

USERS

USERS

32KB Serial Interface Card

C82307* / C82308*

English

32-KB-Schnittstellenkarte

C82307* / C82308*

Carte d´Interface série 32Ko

C82307* / C82308*

Módulo de interface en serie de 32KB

C82307* / C82308*

Scheda dell´interfaccia seriale da 32KB

C82307* / C82308*

Deutsch

Français

Español

Italiano

TABLE OF CONTENTS

INTRODUCTION

About this guide

SETTING THE CONDITIONS

Card layout
DIP-switch and jumper settings
DIP switches
Jumpers

DATA ENTRY

Serial communication
About data entry

Handshaking protocol

SELF TEST

Loopback mode

Line-monitor mode
SPECIFICATIONS
HARDWARE DESCRIPTION
CIRCUIT DIAGRAMS
INSTALLATION

2
3

4
4
5
5

14
16

16
16
17

21
21
22

23
25
28
31

INTRODUCTION

The Serial Interface Card C82307 * /C82308 * is an interface

that

allows asynchronous serial

between a host computer and an EPSON printer.
This interface card offers the following features:

A 32K byte buffer

•

other uses while your

Two self-test functions

•

problems

Data transmission that can be set at either RS-232D,

•
RS-422A,

has been revised from the former RS-232C.
signal levels for RS-232D the same as for RS-232C.)

Handshaking protocol using X-on/X-off or DTR flag

•

control

Selectable

•

choose
word bit settings (either 7 or 8 bit)

Selection of

•

(Data transmission speed is limited to 19,200
when interface is set to either RS-232D or 20-mA
Current-Loop.)

DIP-switch 1 settings

•

installation

or 20-mA Current-Loop levels (RS-232D

data

parity

that

word

(Odd,

baud-rate

structure that

Even,

that

data

communication

frees up your computer for

printer

continues to print

that

can help solve interface

Set

the

allows you to

None, or Ignore) and

settings from 75 to 38,400

BPS

you can change even

BPS

after

About

this guide

This guide is designed to give you detailed information
on how to install

in a

card

variety

procedures

your

C82307 * /C82308 * serial interface

of EPSON printers. Installation

vary

slightly depending upon the printer

model that you have.

Also included are instructions on how to adjust the
settings of the C82307 * /C82308 * interface card, as well as
a general description of serial

data

communication.

The C82307 * /C82308 * option package contains the
following items:

C82307*
C82308*

serial I/F card

(1)

Optional

connector lock nuts

(2)

Note

When attaching the interface cable to the interface, you
may find

that

the screws of your interface cable do not

fit into the connector lock nuts. If this happens you will need
to replace the connector lock nuts with the optional ones
provided in this package.

3

SETTING THE

The C82307 * /C82308 * interface card has three sets of
DIP (Dual In-line Package) switches, and eight jumpers.DIP (Dual In-line Package) switches, and eight jumpers.
These switches and jumpers are used for selectingThese switches and jumpers are used for selecting
various interface operations.various interface operations.

CONDITIONS

Card layoutCard layout

The figure below shows the layout of the
card, and the locations of the DIP switches and jumpers.

card, and the locations of the DIP switches and jumpers.

Figure

1. Card layout

C82307 * KS2308

*

4

DIP switch and jumper settings

Before you install the C82307* /C82308* interface, you
may need to adjust the DIP-switch 2, DIP-switch 3, and
jumper settings. You can change the DIP-switch 1
settings
DIP-switch setting changes, it is best to use a pointed
device, such as a ball-point pen or small screwdriver.

Caution

All changes of DIP-switch and jumper settings should be
made with the
become valid only when the printer is turned on.

after

you install the interface. When making

printer

power turned off. New settings

DIP switches

The settings on DIP switches allow you to change
interface functions. The three sets of DIP switches on
the C82307* /C82308* are labelled SWl, SW2, and

Each set contains a number of individual toggle-

SW3.

type switches
individual switches are referred to by set (SW1, SW2, or

and number. Therefore, the switch in set SW1

SW3)

marked by the small number 3 is called DIP switchl-3.

that

can be set either on or off. The

5

DIP switch
The tables below contain information on switch

functions, and the

Table 1. DIP switch 1

Note

Some
allows you to select between the optional and original
interfaces. If you install the interface card in this type of
printer, you should set DIP switch 1-l on the interface

card

select the optional interface.

1

(interface operations)

factory

setting of each.

printers

to ON and also change the setting in the

have a selecting switch (or function)

printer

that

to

6

Data word structure

The

data

word structure is also

through DIP-switch settings
structure for serial

1

start

bit +7 or 8

bit (selectable) +l or more stop bits.

The table below shows the possible word structure
combinations.

Table 2. Word structure

You

can select the parity check method with DIP-switch

settings

Table

(See

3. Parity check

Table

data is:

data

3).

operator

(See

Table

bits (selectable) + 1

selectable

1).

The word

parity

7

DIP

switch 2

The tables below contain information on switch

functions, and the factory setting of each.

Table 4. DIP switch 2

(interface operations)

8

Baud rate

In serial

form of bits. These

a single
Per Second) rate, or speed at which these bits are
transmitted, can be selected using a combination
switch settings.

Note

In either RS-232D or Current-Loop mode, accurate
transfer cannot be guaranteed at a

19,200

Table 5. Baud rate selection

selection

data

communication,

data

bits go out one at a time along

path,

and in a specified order. The

BPS.

data

is transmitted in the

BPS (Bits

baud rate

exceeding

of DIP-

data

9