EQUITY 386SX/20 PLUS

Computer Specifications

Hard disk

Interfaces

Monitor

serial

Parallel

Keyboard

option slots

supports up to two half-height drives; embedded controller; interface on main system board

VGA adapter with 512KB DRAh4 (video memory) built into main system board; sqportsupto800x600pixelsin16-co10lscX up to 640 x 480 pixels in 256-colors; multi- frequency monitor required for resolutiow over64ox48o

15-pin+ D-she.n ConnectoT

RSZQC, programmable, asynchronous; g-pin. D-shell clxlnecta

Standard &bit parallel, mon~o&; 2api&D-sheuconnector

Mini DIN, 6-pin connector for PS/2 compatible mouse or other device

Mini DIN, apin connector for PS/2 compatiMe keyboard

Four standard input/output expansion slots (three l&bit ISA compatible and ogle &bit ISA compatiile); 8 MHz bus speed

CPU and Memory

CPU

System memory

80386sx microptocgsor, 20 MHZ system dock speed, 20 MHz or simulated 8 MHz proceaor sped, selectable through software or keyboard command

0 wait state memory access speed at

ZOMHZ

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Speaker- Power Supply

Type

Input ranges Maximum outputs

Internal; operation controllable by software

14OW, fan-cooled, automatic (worldwide) input voltage sensing

98 to 132 VAC and 195 to 264 VAC

+5 VDC at 18 Amps, +12 VDC at

4.2 Amps

ROM

Shadow RAM

Cache controller

CacheRAM

Math coprocessor (0pti-u

CkXk/Cd~dar

Controllers

Diskette

Memory expandable using 256KB, IMB, or MB SlMMs up to 14MB (maximum); SIMMs must be fast-page mode, 8ons access sped (or faster)

128KB (includes system BIOS and VGA BIOS)

0 wait state access speed; automaticatly copies both ROM BIOS and video ROM into

A382o2sx (2oMliz) standard

32KB hi&qeed (25x1s) static RAM

80387SX (20 MHz) support

Real-time clock, calendar, and

114-byte CMOS RAM for ConfIguration; banerytJ=w

supports up to two drive in any of four formats: 5 1 /knch, highdensity, 1.2MB; 5 l/4-inch. double-density, 36oKB;

3 1/2-m& highdtity, 1.44MB; or

31/2-m& double-density, ROKB; controller on main system board

Mass Storage

Diskette drives

Hard disk drives

-l2VDCat03Amps,-5VlXat 03 Amps

+12 VDC at 6 Amps, peak (10 seconds)

Up to three half-height drives maximum (one vertical mount and two horizontal mounts) configurable using any of the foIlowing drive types (only horizontal mounts canbe accessed externally):

5 l/4-inch diskette drive, 1.2MB (hi&-d-w) d-ge q=dty

3 l/2-inch diskette drive, 1.44MB e$w==w amge =padty

5 1/44nch diskette drive, 36OKB (double-density) storage capadty

3 l/2-inch &kette drive, ROKB (doublf%chsity) storage capacity

3 l/2-inch form factor hard disk drive(s); up to half-height size; first drive mounted vertically, second mounted hohm&lly

Equity Series Computers

3/6/91

386SX/20 PLUS-1