EQUITY 386SX
Mass Storage
Three
3
diskette
storage
Standard
3
3
720KB
storage
diskette
storage
storage
Computer Specifications
360KB (double-
storage
hard
3
a
CPU and Memory
storage
16
or
CPU
hard
frame).
a
MHz
storage
through a
or
software
address and
data bus
Keyboard
RAM on main system board;
expandable 256KB or IMB
to 6MB.
On-board memory
Detachable, three
sculpted keys
must
QWERTY
keyboard;
access speed or
64KB
pad; IO cursor keys;
keys
ROM
Four levels
alternate); user-definable
control,
(16
support; coprocessor
Math coprocessor
Environmental Requirements
Controllers
range: 41” to
F
Temperature
Supports up to two
formats: 3
3
5
any of four
Diskette
35”
158” F
to
Storage range:
720KB;
or
5
range: 20% 80%.
non-condensing
controller on
system
Storage range: 5% to 95%.
non-condensing
Supports up
40MB or
Hard
embedded
Physical Characteristics
15.7
Interfaces
mm)
programmable, asynchronous;
DB-9P male connector
16.4
6.2
(416.5 mm)
(157 mm)
Depth
Standard
parallel;
female
model: 23.2 lb
hard
DIN
mouse or other
for
12
(10.5 kg)
or
keyboard)
Option slots
standard
(one with
bus); one
parallel
slots
bus and four
card
by a
Speaker
Internal
Clock/calendar
RAM
clock. calendar. and
for
CMOS
backup
battery
Power Supply
fan-cooled.
140 W;
VDC. -5 VDC. -12
VAC
Hz
VDC.
EQ386SX-1
9/22/89
Equity Series Computers
EQUITY 386SX
Serial Port Connector
Switch Settings
CPU SPEED
1
I
2
SIN
3
4
There are no DIP switches on the Equity
However, there is a CPU SPEED switch on the front of
the unit in the lower left hand corner.
6
7
6
9
I
I
RI
The CPU SPEED
When the computer is running at
power light is orange, and at the light is green.
selects between
and
the
Keyboard Connector
Connector Pin Assignments
1
PIN
1
2
3
4
Parallel Port Connector
N.C.
13
25
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Mouse Connector
1
0
1
2
3
4
5
6
7
3
Data 1
Data 2
DATA2
DATA4
0
DATA6
DATA7
7
9
10
I
I
Printer
DESCRIPTION
DIRECTION
NUMBER SIGNAL NAME
11
BUSY
PE
12
13
14
15
16
17
1
2
3
4
Mouse
Mouse
Mouse
select
AUTOFD
ERROR
MSDATA
MSVCC
I
I
I
F G
FG
Frame around
Equity Series Computers
EQ386SX-2
EQUITY 386SX
I/O Port Addresses
ADDRESS
FUNCTION
Controller
Interrupt Controller
Timer/Counter
Keyboard controller and Port
CMOS
and
Interrupt Mask
Page
Interrupt Controller 2
Controller 2
Numeric Coprocessor
Hard Disk Controller
Parallel Port 1
Parallel Port 0
Parallel Port 2 (on some video
boards)
floppy Disk Controller
Serial Port 0
Jumper Settings
DMA Channels
CHANNEL
0
1
2
floppy disk transfers
Spare (Hard disk drive)
3
4
Cascade of data from channel O-3
5
8
7
EQ386SX-3
EQUITY 386SX
Hardware Interrupts
FUNCTION
Timer Output 0
Interrupt from CTLR2
serial port 2
port 2
floppy disk interrupt
Parallel port 1
RTC interrupt
Software redirected to
Reserved
Reserved
Mouse, pointing device
Coprocessor
Hard disk controller
Reserved
Equity Series Computers
EQ386SX-4
EQUITY 386SX
connector on the
cable
Installation/Support Tips
Power
If the
not
in SETUP.
been installed correctly.
normally, make
that any
The Equity
between
a power supply
for USA and Canadian
is switchable
and for
in other countries. The voltage switch is located at
the rear of the CPU between the AC inlet and the AC
outlet.
below)
Installing Hard Disk Drives
It is recommended that
disk controller be used in the
a
AT-type hard
voltage not changed between
the AC inlet and the AC outlet. If the CPU is
for in order to function in Europe, only
peripherals
you are installing
of the internal hard
remember to
a
that cannot make use
hard disk
for use at
should be
the
plugged into the
controller when
such
in formatting the
option In
a
you are having
setup
When
board, do not list the memory under the
memory in SETUP. That
an
expanded memory
option is for EXTENDED memory ONLY.
a hard disk drive, be sure to
hard disk
CPU SPEEO
for the
type which fits the
you are installing.
Adding Memory Modules
The total amount of memory must be one of
the following: 1 MB,
12MB or 14MB.
Memory banks must be filled with one size
SIMM. You cannot mix SIMM types in one
bank.
The rest of the
The
accept
SIMM sockets
only 1 MB
must be filled before using any of the 1 MB
sockets.
Installing Floppy Disk Drives
When installing a floppy disk drive as drive
remember to set the drive select jumper to the
second position and attach the pas&through
Software Problems
When installing a copy-protected software
package on the Equity 888% first try the
Equity Series Computers
EQ386SX-5
EQUITY 386SX
lnstallation at
not work
for the
still unable to
try at
properly,
switching to
lnstallation. you
program at
the
and
then
to
it
method, try
this does not work,
Speed in
loading at
enable the
Power-on Password
Make sure that you do not forget the
Password should you one up. you do, it
to disable it by moving
be
jumper 2 on the main
position.
board to the l-2
If you enable network server mode after
installing a password, the
prompts
you for that password before allowing you to
system from the
diskette.
However, if you install MS-DOS on the hard
disk and boot from that
the prompt no
the
longer appears. The computer
normal
prompt (e.g.,
but it still
the
the
before allowing you to
In network mode.
EQ386SX-6
9/22/89
Equity Series Computers
EQUITY 386SX
Hard Disk Drive Types
Mm8
00
JO
01
4
4
6
17
17
17
17
17
17
17
17
17
17
17
17
17
17
10.2
Used
ESDI)
02
03
04
05
615
615
300
300
512
512
615
615
940
940
615
511
X-506
6
4
940
615
462
733
900
820
a55
20 4
ul.7
30.4
121
07
256
15
3
09
10
11
ST-506
820
a55
055
319
5
7
35 5
49 7
20.3
12
13
14
ST-506
ST-506
306
733
7
15
16
17
18
19
20
21
22
23
24
25
26
4
17
17
17
17
17
17
17
17
17
17
17
612
977
977
1024
733
733
733
306
612
306
612
0
663
977
977
20 3
so.5
56
ST-506
ST-506
7
7
512
595
304
42.6
30 4
102
204
102
204
5
7
732
732
733
336
663
340
670
ST-506
ST-506
ST-506
ST-506
ST-506
ST-506
300
300
0
5
4
4
4
4
305
7
17
17
17
17
17
17
732
977
340
663
732
1023
406
405
102
204
42.6
425
ST-506
ST-506
ST-506
ST-506
ST-506
6%
976
306
611
27
5
4
4
7
0
29
30
31
306
732
1023
5
32
33
34
35
36
37
38
39
40
41
none
none
none
none
none
none
none
CDC
1022
1022
1023
5
5
34
36
17
1022
1022
1024
42
43
44
45
68.0
42 5
512
ST-506
ESDI
10
34
17
17
1023
618
5
512
128
ST-506
ST-506
1024
615
46
47
none
17
17
17
6
820
830
1023
828
ST-506
ST-506
ST-506
ESDI
820
830
40
49
50
51
10
689
76 5
9
7
1024
828
34
36
36
5
7
52
53
0x94166-141
ESDI
Equity Series Computers
EQUITY 386SX
Typo
r-
I
54
153.0
1186
80.3
9
7
5
7
36
34
34
34
34
17
33
26
55
56
1354A
ESDI
ESDI
ESDI
ESDI
AT
1022
1022
979
CDC
1124
57
(3)
56
9
5
59
405
100
CONNERCP-344
CONNERCP-3104
AT
60
776
745
4
AT
744
Auto
Auto
61
405
AT
5
62
(6)
Quantum pro
none
17
AT
10
63
64-255
-
1
2
3
For
ESDI HDC or
Maker
4
5
6
1323A
3035,
IS 964
ST4053
Types1through47are
new
area
EQUITY 386SX
Information Reference List
Engineering Change Notices
None.
Product Support Bulletins
None.
Related Documentation
Equity
Equity
Equity
Equity
Equity
Equity
Equity
Equity
User’s Guide
MS-DOS 4.01 Manual
Shell User’s Guide
Command Summary
Guide
Service Manual
Technical Reference Manual
Technical Information Bulletins
None.
Equity Series Computers
EQ386SX-9
|