INTRODUCTION
The Serial Interface C82302* / C82304* is an interface
board that allows asynchronous serial
data
communica-
tion between a host computer and an Epson printer.
This board
features:
EPSON
a 32K byte buffer that frees up your computer for
other uses while your printer continues to print.
32KB
two self-test functions that can help solve interface
problems.
signal levels that can be set at either RS232C or 20
mA Current Loop.
Serial Interface
handshaking protocol using X-on/X-off or DTR flag
control.
selectable data word structure. This
allows you to
choose parity (Odd. Even, or None) and word bit
settings (either 7 or 8 bit).
selection of baud rate settings from 75 to 19,200 BPS.
(Data transmission speed is limited to 1,200 BPS
when the signal level is set to 20 mA Current Loop.)
This optional interface board is intended for use with the
following Epson printers:
FX, FX+, JX, LX, RX, RX+, HI-80 IX-800, EX-800/1000,
LQ-series (except for LQ-1500), SQ-series (except for SQ-
2000)
About this guide
This guide is designed to give you detailed information
on
how to install your C82302* / C82304* serial interface
board
in a variety of Epson printers. Installation
procedures vary slightly depending upon the printer
model
that you have.
Also
included, are instructions on how to adjust the
settings of the C82302*/C82304* interface board, as well
as
a general description
of serial data
communication.
The C82302*/C82304* option package contains the
following items:
Optional connector loch nuts (2)
Note
When attaching the interface cable to the interface. you
nay find that the screws of your interface cable do not
it 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.
SETTING THE CONDITIONS
The C82302*/C82304* interface board has two sets of
DIP (Dual
In-line Package) switches, and 16
jumpers.
These switch& and jumpers are used for selecting
various interface operations.
Board layout
The figure below shows the layout of the C82302*/
C82304* board, and the locations of
the DIP
switches
and jumpers.
Figure 2. Board
layout
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