Epson equity 386sx-20 plus User Manual
EQUITY 386SX/20 PLUS
Computer Specifications
CPU and Memory
CPU
CPU
System memory
ROM
Shadow RAM
Cache controller
Math coprocessor
Controllers
Diskette
20
system
20 MHz or simulated 8 MHz
sped, selectable through software
or keyboard command
0 wait state memory access speed at
Memory expandable using
or
up to
(maximum);
must be fast-page mode,
8ons access
(or faster)
(includes system BIOS and VGA
0 wait state access speed;
copies both ROM BIOS
video ROM into
standard
32KB
static
(20 MHz) support
Real-time clock, calendar,
CMOS RAM for
supports up to two drive in any of four
formats: 5
highdensity,
5
double-density,
3
or
3
double-density,
controller
on main system board
Hard disk
Interfaces
Monitor
serial
Parallel
Keyboard
option slots
Speaker-
Power Supply
Input ranges
Maximum outputs
Mass Storage
Diskette drives
Hard disk drives
supports up to two half-height drives;
embedded controller; interface on main
system board
VGA adapter with
(video
memory) built
into main
system board;
up to 640 x
pixels in
frequency monitor required for
programmable, asynchronous;
D-shell
Standard
parallel,
Mini DIN,
for
compatible mouse or other device
Mini DIN,
connector for
keyboard
Four standard input/output expansion slots
(three
ISA compatible and
&bit
ISA
8 MHz bus speed
operation controllable by software
fan-cooled, automatic (worldwide)
input voltage sensing
98 to 132 VAC and 195 to 264 VAC
VDC at 18 Amps,
VDC at
4.2 Amps
03 Amps
VDC at 6 Amps, peak (10 seconds)
Up to three half-height drives maximum (one
vertical mount and two horizontal mounts)
configurable
any of the
drive
types (only horizontal mounts
accessed externally):
5
5
diskette drive,
3
diskette drive,
5
diskette drive,
(double-density) storage capadty
3 l/2-inch
drive,
storage capacity
3
form factor hard disk drive(s);
up to half-height size;
drive mounted
vertically, second mounted
Equity
Series Computers
3/6/91
386SX/20 PLUS-1