Epson Equity LT-286e Product information

Brand: Epson

Model: Equity LT-286e

Type: Product information

Epson Equity LT-286e is a portable computer featuring 80C286 microprocessor with switchable speeds of 8/12 MHz, MS-DOS 4.01 operating system, 1 MB of RAM expandable to 2MB, a high contrast 640x480 LCD display with 16-level grayscale, and an internal 1.44MB 3.5” diskette drive. It has several expansion options including an internal 2/3 size IBM PC AT-compatible slot and an internal modem slot. The LT-286e comes with a rechargeable NiCad battery pack that can power the computer for up to 4 hours and an AC adapter for recharging the battery or powering the computer directly.

EQUITY LT 286e

Computer Specifications

CPU:

8OC286

mkroprwwor,

8/12

MHz

ewltch-selectable

dock speeds

Msth

Copmwuor:

8OC287

support

(optlonal),

8MHz

RAM:

(WOKB

standard and

384KB

extended)

IlltrrhCU:

Parallel:

Standard

&blt

parallel; 25

pin, D-type

female connector

SorId:

RS-232C,

programmable. asynchronous;

9 pln, D-type msle connector

vldso:

9pin

female connector supports MDA

CGA,EGA,andextendedEGA

External

dbkstta

drlvo:

15pm,

D-type female connector

4sd.d

ksybosrd:

SpWkw:

Option slot:

MOfnCUy:

Keyboard connector

lntemnl

One

2/3

rlze,

IBM PC AT-compatible slot

lntemsl RAM msrnory card slot allows

expanskm to 2MB;

49pin

male

connector

MOdOllt:

Clock/

Calendar:

Ksybosrd:

Mu8

stcmgr:

Hsrd

Disk:

Dlskstte

drlvos:

Dlsplsy:

internal modem slot; 34-pln male

connector

Real-tlme clock

and

calendar

wfth

battery backup

84 sculpted keys; LCD indicator icons

for Num Lock, Caps Lock, Scroll Lock

Interchangeable, pop-out,

20MB

40MB hard disk designed for

low power

consumption;

2Ems

average access

time;

bultt-fn,

16-M bus ATcompatIble

controller

One Internal

1.44MB

3.5’ diskette

drfve;

optbnal,

external 5.25’

(1.2MB)

diskette

drive

Large (640X480 dots),

high

contrast,

paper-white. bnckllt, LCD display with

164wel

gray scale; continuous

brightness and contrast controls;

power-saving

feature.

CRT mode suppotts ECD (enhanced

color

display), monochrome display, color

dlspiay,

and muftlsynccompatlble

CRTs.

External RGB

monltor

supported

(EGA-

compatlbfe) .

Equity Series Computers

Power Supply:

Externally

attached, rechargeable

NlCad

battery pack (4000 mMarnpere

hours); up to

hours

12/5-volt

adapter

(can recharge

battery

peck while

operatltv~

computer)

with automatic 1

Wd49V

sensing.

Power

Rsqulrsmonts:

loo-240 VAC,

59/w

Hz.

NlCad

rechergeebie

bettety

pack, 9.6

volts, 4 ampere hours

Envlronmrntsl

Condlttorm:

TOmpwrture:

Operating Range: 41 to 95 degrees F

to 35

degrees

Humidity:

Physical

Dimension:

Optbnr:

Modem:

Mmnory:

Bxpsnrbn

cards:

-VI*

case:

Storage

Range: 4 to 122 degrees F

(-20 to

degrees

Operating Range: 29% to

80%

non-condensing

Storage Range: 8% to

80%

non-condensing

Width: 12.9 Inches

(318mm)

Depth: 11.7 Inches (296.5 mm)

(with

handle retracted

Height:

3,46

Inches

(88

mm)

Weight: 16.4

Ibs

(7.4 kg)

(with

battery and hard disk drNe)

internal

2499baud. Hayescompatible.

auto-dial

MB RAM expansion cord

One 2/3-size, IBM PC AT-compatible

slot

Soft

wse

for carrying computer

Slide Switches

The

clock slide switch selects between 8MHz and

12MHz.

Slide switch to the left to select

SMHz,

slide to the

right to select

12Mhz.

The CRT/LCD slide switch selects support for either an

external CRT or the LCD. Slide switch to the right for

the LCD, slide to the left to connect an external CRT.

LT286e-1

EQUITY LT 286e

The FDD

EXl/INT

dida

switch enables and disables

support for an

axtamal5.25”

diskette drive. Slide

switch to the left if you plan to connect an external

diskette drive, slide to the right if you do not plan

usa

such a drive.

DIP Switches

SW-1

Fu#lon

123488

7-10

Notbad-MustbmON

ON l

.%bcIsmhancad

mlofdlqlay

OFF

smurb

momdlrom* 0,

color

mmNad-MumbooN

Rwmd-MustboON

Rwcwd-MumboON

sm4cm

rxpMd4d

LCD

moda

DFF

Sitar

standard

LCD

modo

SEE

TABLE

CRT/LCD

CsmfQurti

(below)

CRT/LCD Configuration

Switch-

Function

B 9 10

OFF ON OFF OFF Selects MDA (CRT only)

ON OFF OFF ON

selects CGA

40x25

ON OFF OFF OFF

selects CGA 80x25

OFF ON ON ON Salaots EGA normal mode

OFF ON ON OFF

!3alaots

EGA enhanced mode

* Factory Settings

LT286e-2

8/l

/@J

Equity Series Computers

SW-2

122428

T-10

OFF

OE=

DFF

SEE

TABLE

Jumper FunoUon

7 8

9 10

OFF

Enables internal serial port

Disables internal serial port

* Intamal printer port LPTl

Internal printer port

LPTP

Enables internal printer port

Disables internal prlntar port

Notusad-MustbaON

Factory Settings

EQUITY LT 286e

Connector Pin Assignments

Parallel Port Connector

P/N

No.

#ME

STROBE

DATA0

DATA1

DATA2

DATA3

6 DATA4

DATA5

DATA6

9 DATA?

ACK

+ BUSY

+PE

SLCT

AUTOFT

ERROR

INIT

SLCTIN

GND

20 GND

GND

OIRECTKW

DESCRIPTKIN

Printer Data

Bit

Pnnm Data

Bit

Printer

Data

Bit

Printer Data

Bit

Printer

Oat4

81 4

Prtnter

Data

811

Printer Data

Bii

Pnnter Data

BiI

Ackncwledgs

Pnnter

Busy

End

Paper

Pnnmr

Selsct

Auto

Feed

Printer

Error

Printer

Inltlallze

Printer Select

Ground

GrOUnd

Ground

Serial Port Connector

12345

(E]

6 7

No.

SGML

N4ME

DIREOWN

CRDET

Dam

Cwiw

Do14ct

RXDT

Recwe

DsU

TXDT

Transmit Data

DTR

Data

Twnwal

Rndy

Signal Ground

DSR

Data

RwdV

RTS

Requo4t

to Send

CTS

Clear

ssnd

Rho Indicator

Video Port Connector

Monochrome

RGB

Enhanced RGB

Ground

Ground S Red

Red

Green

Blue Blue Blue

lntenslty lntensfty S Green

Video

No Con

S Blue

sync

H Sync H Sync

Sync

v sync

V Sync

Keyboard Interface Connector

o”o

0 0

DUCRIPTION

Kayhwd

Clock

Keykwd

Data

-Keyboard

RowI

GtWlld

Power l 5v

Equity Series Computers

8/1/89

LT286e-3

EQUITY LT 286e

External Floppy Drive Connector

%nd

Mmotlon

Definition

WNDEX

External

Index

MDSEL

External Drlvo

Soloot

EUOTON 0

External Motor On

EXDIR

Extomai

Mrootion

EXSTEP

External Stop

EWRDATA

External

Writ0

Data

EXWRGATE

Extomal

Writ0

Gata

MTRKO

G-trrnal

Traok

EXWPROT

External

Writ0

Protaol

EXRDDATA

Extomal Road

D8ta

EN-Is1

External

Side

Seleot

MDSKCHG

Extomai

Disk

Change

GND

Ground

EiHlGH

Extomal

High Danlrty

GND

Ground

LT286e-4

W/f39

Equity Series Computers

EQUITY LT 2868

lnstallation/Support Tips

with copy-protection. After the installation, the CPU

canbeswitchedbacktothohlgherspeed.

Power

The

Equity

LT-2880

AC adapter is an auto-sensing unit which

adjust8 automatically between

lCX&240

So/So l-k.

lhmfore,

it can be used anywhere in the world without

ape&l

adjustment.

tfasoftwampaokagedoeanotappeartobe

compatible wifh the

Equity

LT286e, try switching

the CPU speed to 8

MHz

before giving up.

When using the Equity LT288e on battery power,

conservation measures are available and should be

used.

lb3eare:

set the backlight

period

option

the shortest available setting

with SETLCD,

set the brlghtneas and contrast

control8 as low as is

comfortable,

run at 8

MHz,

and

use the

HDDPSWE

feature to

automatically turn the HDD off

at times when it is not being

aweawd

constantly.

Periodically, discharge the battery completely. This

will help to minimize the memory effect

encountered with NiCad batteries. After the

complete discharge, give the LT-286e a full,

&hour

recharge. This

will

help to keep battery charge life

aa great as possible.

Video

When using the Equity LT-288e with a monochrome

monitor, lf your aoftwam requires that you specify a

display type, select EGA 640 X 350 MONO.

Mass Storage

careful when handling the removable hard

drives.

Unneoessary roughness can set off the

shock indicator.

Software Problems

When installing a copy-protected software package

on the Equity

LT-288e,

sat the the CPU speed to 8

MHz.

This

has been found to have fewer conflicts

Equity Series Computers

8/1/89

LT286e-5

EQUITY LT 286e

(

Information Reference List

(

Engineering Change Notices

None.

Technical Information Bulletins

None.

Product Support Bulletins

None.

Epson Equity LT-286e Product information

Epson Equity LT-286e Product information

Epson Equity LT-286e Product information

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