Page 1
Controllers
EQUlTY 386SX PLUS
Computer Specifications
CPU and Memory
16-bit CPU
System memory
80386SX microprocessor, 16 MHz system
clock speed, 16 MHz or simulated 8 MHz
processor speed, selectable through
software
0 wait state memory access speed
UnilawithlMBRAMonsy&emboardare
expandable up to
LJni~with2MBRAh4onsyntemboa~are
expandable up to 14MB
SIIvlMsmustbe7Unsaaesaqeed.
lOME
using S&I?&
u&g
SIMhia
Diskette
Hard disk
Interfaces
Monitor
Serial
Parallel
Auxiliary
Keyboard
Option slots
Speaker
Power Supply
Supports up to two drives in any of four
formats: 5 ‘/+inch, high-density,
5 ‘/+inch, double-density, 36OKB;
3 ‘/z-inch.
doubledensity, 720KB; controller on main
system board
Supports up to two drives; embedded
controller; interface on main system board
Standard VGA with
memory; supports up to 800 x 600 pixels
in
female D-shell connector
RS-232C,
9-pin, D-shell connector
Standard 8-bit parallel, mono-directional;
25-pin,
Mini DIN,
compatible mouse or other device
Mini DIN, 6-pin connector for
compatible keyboard
Four standard input/output expansion
slots (three
one 8-bit ISA compatible); 8 MHz bus
speed
Internal; operation controllable by
software
highdensicy, 1.44MB;
256KB
16-color
or gray scale mode;
programmable, asynchronous;
D-shell connector
6-pin
connector for
16-bit
ISA compatible and
1.2MB;
3 ‘/z-inch.
of video
15-pin,
PS/2
PS/2
ROM
Scratch
Math coprocessor
Clock/calendar
memory
128KB
4KB capacity;
access
with 0
80387SX
(optional)
Real-time clock, calendar, and 50-byte
CMOS RAM for
backup
(16
Equity Series Computers
Idbit
data bus; 16 MHz
wait
state
MHz)
support
configuration: battery
6/15/90
Type
Input ranges
Maximum
14OW,
fan-cooled, automatic input voltage
sensing
98 to 132 VAC and 195 to 264 VAC
+SVDCat
4.2
-12
03 Amps
18Amps,
Amps, outputs
VDC
at 03
Amp.
+12VDCat
-5
VDC
at
386sx PLUS-1
Page 2
EQUlTY 386SX PLUS
Mass Storage
Standard
Standard
Optional
Optional
Optional
Optional
Optional
Optional
Three half-height drives maximum
(one 3 ‘/z-inch vertical mount and two
5
‘/4-inch
horizontal mounts)
5 ‘/cinch diskette drive,
(highdensity)
3
‘/z-inch
(high-density) storage capacity
5 ‘/+inch diskette drive,
(highdensity) storage capacity
3
r/s-inch
(highdensity)
5
‘/+inch
(doubledensity) storage capacity
3 ‘h-inch diskette drive, 720KB
(double-density) storage capacity
3 ‘/z-inch hard disk drive, 40MB storage
capacity
3 ‘/z-inch hard disk drive,
capacity
storage capacity
diskette drive,
diskette drive,
storage capacity
diskette drive, 360KB
1.2MB
1.44MB
1.2MB
1.44MB
1OOMB
storage
Altitude
Operating range:
Non-operating range: -330 ft to 11880
Storage range:
-330 ft to 9900
f-100 m to
(-100 m to 3300
-330 ft to 39600 ft
(-100 m to 12000
Physical Characteristics
Width
fiP&
Height
Weight
(without
keyboard)
1
Connector Pin Assignments
14.75 inches (375 mm)
17.5 inches (444 mm)
5.9 inches (150 mm)
Single diskette drive model:
20.75 lb (9.4 kg,
Hard disk drive model:
22.25 lb (10.1 kg)
1
Parallel Port Connector
ft
3000 m)
ft
m)
m)
Keyboard
Detachable, two position, 101 sculpted
keys
Layout
Function
58-key
QWERTY main keyboard;
numeric/cursor pad; 10 cursor keys;
additional
keys (user -definable)
Four levels (normal,
alternate); user-definable
Environmental Requirements
Temperature
Humidity
Operating range:
Non-operating range: -4” to 140” F
Storage range:
operating
Non-operating range: 10% to 90%
,-key
cursor pad; 16 function
shift,
control,
41°t09S0F
(5”
f-204 to 50” C)
-40” to 140” F
(-40” Lo
range:
20% to 80%
non-condensing
non-condensing
to35”C)
60” C)
ll-key
Pin 13
Pln 25
17 1
DATA5
*
Active Low Logic
Pin
Pin
1
11
I
366sx PLUS-2
Storage range:
5% to 95%
non-condensing
6/15/90
Equity Series Computers
Page 3
EQUlTY 386sx PLUS
Parallel Port Connector
I
ISUSY
11
12
PE
13
SELECT 22 SIGNAL
14
AUTO’
15
ERROR- 24 SIGNAL GND
INP
16
120 ISIGNAL GND
21
23
25 SIGNAL GND
SffiNALGND
GND
SGNAL GND
Serial Port Connector
t
I1
1 DataCarrterDetect
16 IDataSetReadu
I
Mouse Connector
I
J
Note:
Although the keyboard and mouse
identical, they cannot be used interchangeably.
p’nw P’n5
Pln
4
r”\
Ptn2
Mouse
I5
I
6
cbck
Resewed
COMeCbrs
Pin
1
-1
am
physically
Receive
Data
Transmil
Data
5
Data TemMal
notUsed
Ready
Keyboard Connector
Pln
4
)u\
Pln 2
1
Keyboard Data
2
Resewed
I3 1
Ground
7
8 Clear
9
Requesl
Ri lndirxtor
Plnl
To
To
Send
I
send
VGA Connector
2
3
4
18
7 GreenRetum
8
Green
Vkiso 10
BllJeVkbO
Lhllsed
Red Return
1
Bb Return
11
12
14
I I
15
sync
Return
RWn/ed
RWtVd
Verlical
UflLiHd
sync
I
Equity Series Computers
6/15/90
386SX PLUS-3
Page 4
EQUITY 386sx PLUS
1
Jumpers
12 3 4 s
A
0
A
B
A
8
A
B
hosory-ngr
]
DMA Channels
CHANNEL
O(cTRL1)
1
(CTRLl)
2(=1)
S(cTFlL1)
4
(CTRL
5
(mu
8
(CTRL
7
(CTRL
SDLC
Flopw
2)
CMCadOfOrCTRll
2)
2)
2)
disk
driva controlbr
Hardware Interrupts
cllR1crlR2
6
l
Enabloathepower~npasword
Dbabbethepuwer~paMword
l
Enables builtin HD
Dbabla
built-h HD interface
l
Enabba buittin mouse umnector
Dbabhs built-in rnouao connector
l
Cobrrmnitorbinstaibd
khochronw
A
B
l NomulI/0challnolrwtysignal
OtWW&t~8ddOdtOI/OChUlMl
nwfydgnr;l
A
l
EnabbebulttinW3Aadapter
l3bebh
B
built-in Wu adaptor
interfaa~
rnonltor
b installed
IRCX
IRQl
IRo2
IRo3
IRo4
IRCX
IRQ6
IRo7
IRQ6
IRoe
IRQlO
IRQll
IRo12
IRQ13
IRQ14
IRO16
FUNCTION
TlIllSWOUlpUtO
Interrupt from Controller 2
sefiaiport2
-part1
FwalblpoR2
Floppy dbk intern@
PM&lpOltl
RTC inlwupl
sothnnndi~tolIRo2
386sx PLUS-4
6/15/90
Equity Series Computers
Page 5
EQUITY 386SX PLUS
I/O Port Addresses
Mdreu
00041F
02CuEl
DMA Qmtroller
lnter~pt Controller 1
04#!5F Timer/Counter
06046F Keyboard Controller (8042)
070-07F
DBO49F
OM-OBF
OCQ-ODF
OF0
OF1
RTC,
NMI Mask
DMA Page Fbgister,
Intem~pt Cwtroller
DMA
Controller 2
Clear NPX Busy
Rmet
NPX
OFS-OFF NPX(SO387SXj
17@178 Hard D&k
160-l
B!5
Configuration
1BF
lFO-lF7
Configuration Rq$stw Unlock
Hard Disk Controller Primary
200-207 Game’/0
27E27F
276
2F&2FF Serb’
Printer Port 2
Configuration Register Unlock Port
Port 2
3W41F PmbtypeCard
37(X377
37S-37F
378
3KMSF
floppy
Msk Drhrs
Pamllel
Printer M
conflgurauon Fbgister
SDLC,
Bisynchronour
3bMAF Sisynchronous Communicetion
3BWBF
3C0-3DF
3FO4F7
3FS4FF
Monochrome Display and
Color/Graphics Monitor Adapter
Floppy Disk Controller Primary
Serial
Port
FUItClh
1
b@tor
MFG Port
2
(S259A
(S237A45 compat)
(80387SXj
(80387SX)
Cwtrolkr - Secondary
Pagisters
(276
and 27F are unused)
Controller Secondary
l(37B
Llnlook
Communication 2
1
compat)
Port
and
37F
Port 2
1
Rinter
1
1
are unused)
Adapter
SIMM Installation
Looking
at the sockets vertically, they are
shown below.
2L
3L4L 5L6LlH2H3H4HSH
1L
The following table shows all the possible SIMM configurations
for the Equity 386SX PLUS. Do not install
configuration other than one of the types shown in this table.
SAtMwn~rfaalhiBs)atrm
Sank number
123456
Socket number
1L
2L 3L
KK---KKM---
KKMM--
KKMMMKKMMMM
K = 256KS SIMM
M = 1MB
- =
no SIMM
SIMM
4
installed
~nstallad
hstahd
SL
6L
123456
1H
2H 3H 4H 5H 6H
KK---KKM---
KKMM--
KKMMMKKMMMM
numbered as
SlMMs
Bank number
So&et
numkr
6
in any
Total
mmory
2M8
4MB
6M8
BMB
1oMB
Equity Series Computers
6/15/90
Bank number
123456
Socket number
1L 2L 3L
--M---
--MM--
--MMM-
--MMMM
M-MMMM
MMMMMY
-
=NnstMMtl-&asad
M =1M66lMMn4t8!&d
4L 5L
6ank numbu
123456
6fzcket numbsf
1H 2H 3H 4H SH
a
- - M - - -
--MM--
--MMM-
--MMMM
M-MMMM
MMMMMM
TOW
St4
m@mry
4w
sM0
am
loME
12M0
14M0
386sx PLUS-6
Page 6
EQUITY 386SX PLUS
Installation / Support Tips
Power
The Equity 386SX PLUS has a power supply that is switchable
betwon 115 V, for U.S. and Canadian
other
awltrles.
Thon b no manual switch, aa the power supply ir
hard disk access light
diskette
I
I
RESET button
power inbt
TURBO
release
speed
light
hard disk or diskette drive
diskette drive
htch
use,
and
I
option card
230
V, for
autoaonsing.
power button
&wor
light
slot
sbts
u80
in
Mouse and Keyboard
#on
attaching the
careful to attach
thy am plwkally
mouse
and keyboard
thorn
to the proper
identical, they am not
connector8.
Installing Floppy Disk Drives
When
installing a floppy dbk
setthedrivewbctjumpertotheseanxlpositbnand
at&h
the pass-through connector on the floppy drhn
controller cable TV
-
I~d~d~nothrnction~ly,nuk,urnthrttho
drive
type
checkthatanyspecialdrtvemthatmayknocwaryha~
been instatbd axmctty.
the
ha8 been cormcUy sebcted
ddvo aa driw
drive, not
tha and axwuor.
in
Installing Hard Disk Drives
-
-
It b
recommendad
~u~intheEquity388SXPUIS,tywurinrtrllinga
drivethatcannotmakeusaotthaitWnalharddirk
controller.
dbk controibr when inatailing 8uch
If
you
are
having
trystartingovoru&htheUnconditiofutFurrnat0ptionin
dlagnastics.
that a 16-bit AT-type hard disk
Also nmomkr
diilty
to disable
a
in
fomwtUng the
tha onboard
drive.
Setup
connacton, M
Though
irwchangubb.
B,
mrnamkr
SIXUP. Aho
controller
hard
hard disk
drlvo,
to
koyboudcabbaocket
EQ386SX PLUS-6
When
installing a hard
drtvat)qmtabiwforthadrlvetypewhichfitsthodtiveyw
are
inatatiing.
LberDefineddriveoption.
disk drtva, k
tt thom
is no match for
Adding Memory Modules
SlMhb must be
6/15/90
7Chw.
sure to conwtt
your driva, we
thr
the
Equity Series Computers
Page 7
EQUITY 386SX PLUS
Software Problems
Whan lnatalling
Equity
dooanotworkpropwty,tryswitchingto8Ml-kforthm
in8taMon. tfyouamstill~~nahtoloadtheprogmmat
16MH2,
Wbnuringasofhuampa&agethatuwraksydiskutt’~
copy-protection
doaa not work, l
a
abpy-pmbobd 8oRwar8 padtag
366SX Aur, flrat try 6~ in8tallaUon
try loading at 8MHz and then
method,
try
ablo
Power-on Password
hbkeaumthatyoudonotfacgotthoPower~nPasawwd
shouldyousotorwup. W~do,itwillknocenaryto
diaablo It
the 0 position.
by moving jumper Jl on
at
16MHz. If thir
8witohing
kxding
it at
the
&to Spaod option in SETUP.
the
main circuit
to
16Ml-t~. If this
on
ttm
16Mttz.
bawd
to
Equity Series Computers
6/15/90
EQ386SX PLUS-7
Page 8
EQUlTY 386SX PLUS
Hard Disk Drive Types
4
5
1
7
5
7
5
4
4
4
4
I
5
4
4
I
5
1W
lop1
lpn
u
lpn
ns
eo
m
l(P(
w
w
w
w
1W
w
w
w
a0
7%
76
ma6
w
386SX PLUS-8
63
m
lCQ3
u
w
W
W
l&1
W
W
W
w9
74l
&a
Ala
I
Tls
6/15/90
Equity Series Computers
Page 9
Information Reference List
Engineering Change Notices
Nonr.
Technical Information Bulletins
Non..
Product Support Bulletins
Nona.
Related Documentation
TMEQ386SX PLUS
Equity
3msx Plus safviu
EQUITY 386SX PLUS
Manual
M-PL-EO386SX
Y7O6SQlO&
PLUS
EqUiQf3&X%PlU8F+Ut8~
Equity
386sx Au8 Lbu’s Guida
f
Equity Series Computers
6/15/90
EQ386SX PLUS-9
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