Page 1
EQUITY LT 286e
Computer Specifications
CPU:
Msth
Copmwuor:
RAM:
IlltrrhCU:
Parallel:
SorId:
vldso:
External
dbkstta
drlvo:
4sd.d
ksybosrd:
SpWkw:
Option slot:
MOfnCUy:
MOdOllt:
Clock/
Calendar:
Ksybosrd:
Mu8 stcmgr:
Hsrd Disk:
Dlskstte
drlvos:
Dlsplsy:
8OC286 mkroprwwor,
ewltch-selectable
8OC287
support
1
MB
(WOKB
extended)
Standard
female connector
RS-232C,
9 pln, D-type msle connector
9pin
CGA,EGA,andextendedEGA
15pm,
Keyboard connector
lntemnl
One
lntemsl RAM msrnory card slot allows
expanskm to 2MB;
connector
internal modem slot; 34-pln male
connector
Real-tlme clock
battery backup
84 sculpted keys; LCD indicator icons
for Num Lock, Caps Lock, Scroll Lock
Interchangeable, pop-out,
40MB hard disk designed for
consumption;
bultt-fn,
controller
One Internal
optbnal,
diskette
Large (640X480 dots),
paper-white. bnckllt, LCD display with
164wel
brightness and contrast controls;
power-saving
CRT mode suppotts ECD (enhanced
display), monochrome display, color
dlspiay,
External RGB
compatlbfe) .
standard and
&blt
parallel; 25
programmable. asynchronous;
female connector supports MDA
D-type female connector
2/3 rlze,
IBM PC AT-compatible slot
2Ems average access
16-M bus ATcompatIble
1.44MB
external 5.25’
drive
gray scale; continuous
feature.
and muftlsynccompatlble
monltor
8/12
dock speeds
(optlonal), 8MHz
49pin
and
calendar
3.5’ diskette
(1.2MB)
high
supported
MHz
384KB
pin, D-type
male
wfth
20MB
low power
contrast,
or
time;
drfve;
CRTs.
(EGA-
color
Power Supply:
Power
Rsqulrsmonts:
Envlronmrntsl
Condlttorm:
TOmpwrture:
Humidity:
Physical
Dimension:
Optbnr:
Modem:
Mmnory:
Bxpsnrbn
cards:
-VI*
case:
Externally
NlCad
hours); up to 4 hours
12/5-volt
battery
with automatic 1
loo-240 VAC,
NlCad
volts, 4 ampere hours
Operating Range: 41 to 95 degrees F
(5
Storage
(-20 to 60 degrees
Operating Range: 29% to
non-condensing
Storage Range: 8% to
non-condensing
Width: 12.9 Inches
Depth: 11.7 Inches (296.5 mm)
Height: 3,46
Weight: 16.4
internal
auto-dial
1
One 2/3-size, IBM PC AT-compatible
slot
Soft
attached, rechargeable
battery pack (4000 mMarnpere
AC
adapter
peck while
rechergeebie
to 35
degrees C)
Range: 4 to 122 degrees F
(with
handle retracted
Inches
(with
battery and hard disk drNe)
2499baud. Hayescompatible.
MB RAM expansion cord
wse
for carrying computer
(can recharge
operatltv~
Wd49V sensing.
59/w
Hz.
bettety
C)
80%
(318mm)
(88
Ibs
mm)
(7.4 kg)
computer)
pack, 9.6
80%
Slide Switches
The
clock slide switch selects between 8MHz and
Slide switch to the left to select
right to select
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.
12Mhz.
SMHz,
slide to the
12MHz.
Equity Series Computers
LT286e-1
Page 2
EQUITY LT 286e
The FDD
support for an
EXl/INT dida
axtamal5.25”
switch enables and disables
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
to
usa
such a drive.
DIP Switches
SW-1
Fu#lon
ON
DFF
7-10
SEE
TABLE
l
Notbad-MustbmON
.%bcIsmhancad mlofdlqlay
smurb
l
l
* Rwcwd-MumboON
l
momdlrom* 0,
mmNad-MumbooN
Rwmd-MustboON
sm4cm rxpMd4d
Sitar standard
CRT/LCD
CsmfQurti (below)
LCD
123488
x4
ON l
OFF
ON
ON
ON
LCD
color
moda
modo
SW-2
ON
DFF
ON
T-10
SEE
TABLE
*
* Intamal printer port LPTl
*
* Notusad-MustbaON
122428
ON
ON
OFF
DN
ON
OE=
ON
Jumper FunoUon
7 8
9 10
ON
OFF
ON
OFF
ON
OFF
Enables internal serial port
Disables internal serial port
Internal printer port
LPTP
Enables internal printer port
Disables internal prlntar port
CRT/LCD Configuration
Switch-
7
B 9 10
OFF ON OFF OFF Selects MDA (CRT only)
ON OFF OFF ON
ON OFF OFF OFF
OFF ON ON ON Salaots EGA normal mode
OFF ON ON OFF
* Factory Settings
Function
selects CGA
selects CGA 80x25
l
!3alaots
EGA enhanced mode
LT286e-2
40x25
8/l
/@J
*
Factory Settings
Equity Series Computers
Page 3
EQUITY LT 286e
Connector Pin Assignments
Parallel Port Connector
P/N
No.
1
2
3
4
5
6 DATA4
7
6
9 DATA?
10
11
12
13
14
15
16
17
16
19
20 GND
21
22
23
24
25
Serial Port Connector
SW
-
STROBE
DATA0
DATA1
DATA2
DATA3
DATA5
DATA6
- ACK
+ BUSY
+PE
+
SLCT
- AUTOFT
-
ERROR
- INIT
- SLCTIN
GND
GND
GND
GND
GND
GND
GND
#ME
OIRECTKW
0
0
0
0
0
0
0
0
0
I
I
I
I
I
I
I
I
DESCRIPTKIN
Printer Data
Pnnm Data
Printer
Data Bit
Printer Data
Printer
Oat4
Prtnter
Data
Printer Data
Pnnter Data
Ackncwledgs
Pnnter
Busy
End d Paper
Pnnmr Selsct
Auto
Feed
Printer
Error
Printer
Inltlallze
Printer Select
Ground
Ground
Ground
Ground
GrOUnd
Ground
Ground
Ground
Bit 0
Bit
Bit
81 4
811
Bii
BiI
Video Port Connector
1
2
3
5
6
7
In
PIN
Keyboard Interface Connector
Monochrome
Ground
Ground
Red
Green
RGB
Ground
Ground S Red
Red
Green
Enhanced RGB
Ground
Red
Green
Blue Blue Blue
lntenslty lntensfty S Green
Video
Ii
sync
V
Sync
No Con
S Blue
H Sync H Sync
v sync
V Sync
2
S
o”o
6
0 0
0
3
1
12345
(E]
6 7 0 9
PIN
No.
SGML N4ME
CRDET
.
RXDT
TXDT
DTR
SG
DSR
RTS
CTS
RI
Equity Series Computers
DIREOWN
I
b
0
I
0
I
I
Dam
Cwiw Do14ct
Recwe
DsU
Transmit Data
Data
Twnwal Rndy
Signal Ground
Data SM
RwdV
Requo4t
to Send
Clear IO ssnd
Rho Indicator
8/1/89
I
Kayhwd
Keykwd Data
-Keyboard RowI
GtWlld
Power l 5v
LT286e-3
DUCRIPTION
Clock
Page 4
EQUITY LT 286e
External Floppy Drive Connector
Pin
1
2
3
4
5
8
7
8
Q
10
11
12
13
14
15
%nd
WNDEX
MDSEL
EUOTON 0
EXDIR
EXSTEP
EWRDATA
EXWRGATE
MTRKO
EXWPROT
EXRDDATA
EN-Is1
MDSKCHG
GND
EiHlGH
GND
.
Mmotlon
I
0
0
0
0
0
I
I
I
0
I
0
Definition
External
Index
External Drlvo Soloot
External Motor On
Extomai
Mrootion
External Stop
External
Writ0
Data
Extomal
Writ0 Gata
G-trrnal
Traok
0
External Writ0 Protaol
Extomal Road D8ta
External
Side
Seleot
Extomai
Disk
Change
Ground
Extomal
High Danlrty
Ground
LT286e-4
W/f39
Equity Series Computers
Page 5
lnstallation/Support Tips
Power
The
Equity LT-2880
adjust8 automatically between
lhmfore,
ape&l
it can be used anywhere in the world without
adjustment.
When using the Equity LT288e on battery power,
conservation measures are available and should be
used.
AC adapter is an auto-sensing unit which
lCX&240 V,
lb3eare:
So/So l-k.
EQUITY LT 2868
with copy-protection. After the installation, the CPU
canbeswitchedbacktothohlgherspeed.
tfasoftwampaokagedoeanotappeartobe
compatible wifh the
the CPU speed to 8
Equity
LT286e, try switching
MHz
before giving up.
Video
-
set the backlight
1)
tc
the shortest available setting
with SETLCD,
set the brlghtneas and contrast
2)
control8 as low as is
comfortable,
run at 8
31
4)
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,
recharge. This
aa great as possible.
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.
will
help to keep battery charge life
MHz,
use the
HDDPSWE
automatically turn the HDD off
at times when it is not being
aweawd
period
and
constantly.
option
feature to
&hour
Mass Storage
Be
careful when handling the removable hard
Unneoessary roughness can set off the
drives.
shock indicator.
Software Problems
When installing a copy-protected software package
on the Equity
MHz.
Equity Series Computers
LT-288e,
sat the the CPU speed to 8
This
has been found to have fewer conflicts
8/1/89
LT286e-5
Page 6
EQUITY LT 286e
(
Information Reference List
(
Engineering Change Notices
None.
Technical Information Bulletins
None.
Product Support Bulletins
None.
Related Documentation
Y19499100100
Yl6699100200
Y18699100400
Y18699100600
Ylas9100300
M-TM-LT286e
M-PL-LT286E
Y19499100200
Y1949QKUX2OO
Equity LT-286e User’s Guide
Equity
LT-286e1
MSDOS 4.01 Reference Manual
Equity
LT-286e
MSDOS 4.01 lnstallation Guide
Equity
LT-2S6e
MS-DOS 4.01 Shell
Equity
LT-28Se
MS-DOS 4.01 Command Summary
Equity
LT-28Se
Service Manual
Equity
LT-286e
Parts List
Diagnostics Manual
Equity
LT-286e.
User’s Guide
User’s
Guide
LT286e-6
Equity Series Computers
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