Product Information Guide

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EQUITY 386/20

huddlsk

indicator

light

ksy

lock

disk

IOI

contml

kn&

switch

drive slot

Computer Specifications

CPU

ckxk

W3%-20.

PGA (132 pins), socketed

20 MHz (0 wait states)

6 MHz (1 wait state);

witchable

on-the

Hy:

sdtwam

conWolkd

swttch

Bus

spd

6 MHz

fad

DMACkCk

4 MHz fixed

NPX

60367

20. PGA (68 pins). socket only

NPX Speed

20 MHz fixed

DRAM

1 MB minimum. 16 MB maximum on the memow board

BIOS

heumce

Two

272%

20 chips.

socketai

One

mid

(9 pins,

shell)

One

psmlbl

(25 pins, D

shell)

one

vdeo

adapmf

One FDO

connectcw

(up to 2 FOOs supported)

Two HDD connectors

ESDI

ST508

FDO

5.25-inch

1.2 MS

for

3.5

inch 1

MB/720

KB. 5.25’ 360 KB for

HDO

5.25-Inch

half-height

full-heighl

SO MB. ESDI.

Interteave

40 MB, ST506.

inttive

KeVboard

101 -key enhanced keyboard

Lock

On!hhJlltpSnel

Switches

Reset

Clock speed select (20

MHz/6

MHz)

Monitor select (cdor/monochrome)

VOkJflW

Audii

speaker volume control

ORAM

Expansion

On the

mein

wntrol

bonrd

16 SIMM socketa

ApPlkaMe to both [256xtxSI and

[lMxtxSI

P-supp)y

Input

115 VAC

230 VAC

Frequcmcy

Pcww Consumption 115 VAC

230 VAC

Surge

Cunemi

Min.

92 V

Max. 4 A

Max

132 V

Min. 1% V Max. 2.5 A

Max.

265 V

61 HZ

Approxmately 60 W

Appralamat.ely

60 w

42 A 0

P (0.5 second more)

I-

SwenQlh

115 VAC

230 VAC

(1 min.) (AC

FG. AC

seconds)

AC 1.25

(1 min.) (AC

FG)

AC 3.75 kV (1 min.) (AC

secoaby)

Insulelion

Raircurco

25M ohm

(500 VDC) (AC

FG. AC

secondary)

ohm more (250 VDC) (SG

FG)

WERNING

NoN-~nru3

T-

41 l F to

%‘F

-4-F

14O.F

5’c

35’c

-2o’c to 60-c

Hwidhy

(non-

conch&g)

zo%tow%

10%

so%

Muhurm

wel

&lb

ad-

@%mJ-

VibMCtl

0.2 G

1 G (no HOD)

0.5 G (HDD)

Shock (no HDD)

then 10

t-m)

(lees

than

Ins)

Shock (HDD) 1 G

nwn

o-w Hz)

tF,

mm o-w Hz)

AhtIude

(HDD)

3.000 m ASL

-300

lo 3.600 m ASL

ST-

-40’F to

14O.F

-4o’c to

6o’C

*dw-

3 G (no HDO)

(lees

then 10 me)

300

25 mm O-W Hz)

-300

to 3.600 m

ASL

CPU

speed

SWWh

There are no DIP switches on the Equity

M/20.

However,

there is a MONITOR SELECT switch, a CPU SPEED switch

and a VOLUME CONTROL on the front of the unit in the

lower left-hand corner.

Monitor select

Color, composite, EGA, and VGA monitors

The CPU SPEED switch selects between 8 MHz and

MHz.

When the computer is running at 8 MM the power light is

red and at

MHz

the light is green.

The VOLUME CONTROL controls the internal speaker’s

loudness. Turn it to the right to increase the volume and to

the left to decrease the volume.

Equity Series Computers

413189

EQ386/20 - 1

Summary of content (8 pages)

PAGE 1
EQUITY 386/20 huddlsk indicator light I ksy ,lock T- WERNING NoN-~nru3 ST- 41 l F to %‘F 5’c to 35’c -4-F to 14O.F - 2 o ’ c to 6 0 - c - 4 0 ’ F t o 14O.F - 4 o ’ c t o 6o’C Hwidhy (non- conch&g) zo%tow% 10% tQ so% Muhurm wel &lb VibMCtl k ad- @%mJ- *dw- 0.2 G 0.5 G (HDD) 1 G (no HOD) 0.
PAGE 2
EQUITY 386/20 Connector Pin Assignments J3 Parallel Port Connector P/N No.
PAGE 3
EQUITY 366/20 I/O Port Addresses Address Function WO-OlF DMA Controller 1 020 -03F Interrupt Controller 1 022 - 023 Configuration Registers 040 -05F Timer/Counter 060-OBF Keyboard Controller lumper I 2 Function 3 4 5 6 7 8 9 10 4 A 3 A l 4 B 3 B Disable FDC register set A A A A B B A B B B l A Primary parallel I/F, IRQ7 Secondary parallel I/F, IRQE Video adapter parallel I/F, IRQ7 Disable parallel I/F A A A A B B- B A B A B l Primary register set (Al FDC) Secondary registe
PAGE 4
EQUITY 386/20 DMA Channels Function C%annel 0 1 Spare Spare floppy disk transfers Spare (hard disk drive) Cascade of data from channel 0 - 3 2 3 4 5 6 7 Spare Spare Hardware Interrupts CTLR1 CTLR2 FUNCTION Timer Output 0 IRQO IRQl IRQ2 Keyboard lntbnupt from Controller 2 IRQ3 Serial port 2 IRQ4 Serial port 1 IRQ5 Parallel port 2 Floppy disk interrupt IRQ6 IRQ7 IRQ8 Parallel port 1 RTC interrupt IRQ9 Redirected to INTOAH IRQlO IFtQ11 Reserved IRQ12 Reserved Reserved IRQ13 IRQ14 Coproc
PAGE 5
EQUITY 386/20 - - - Installation/Support Tips lf you are having difficulty in formatting the hard disk drive, try starting over with the Unconditional Format option in diagnostics. The Equity 386/20 has a power supply that is switchable between 145 V, for USA and Canadian use, and 230 V, for USE in Other countries. The voltage switch is located at the - - - rear of the CPU between the AC inlet and the AC outlet (see figure below).
PAGE 6
EQUITY 386/20 Software Problems - - - When installing a copy- protected software package on the Equity 386/20, first try the installation at 20 MHz. If this does not work properly, try switching to 8 MHz for the installation. lf you are still unable to load the program at 20 MHz, try loading at 8 MHz and then switching to 20 MHz. - - - When using a software package that uses a keydisk as its copy-protection method, try loading it at 20 MHz. lf this does not work, enable the &to Speed option in SETUP.
PAGE 7
EQUITY 386/20 Hard Disk Drive Types EC!! I 4 6 8 6 * 8 5 15 3 5 7 a 1 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 3' 32 33 34 35 36 37 38 39 a0 1' 42 43 dd 45 46 d! da a9 ST.505 STM6 ST5C6 ST.506 ST.503 ST.
PAGE 8
EQUITY 366/20 Information Reference List Engineering Change Notices None. Technical Information Bulletins 386/20-001 CHET/CHET-RM Board Connector 6/12/89 Product Support Bulletins SOO47A S-0067 S-ooQl 6112189 Using Expanded Memory with the Equity and Apex 6/Q/m Equity Series Computers - ROM History 4/1Q/aQ Apex/Apex Plus/Equity Series Keyboards 5/16/89 Equity 366/20 Coprooessor Installation 6/12/89 Using the EEMM366.