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EQUITY II

EPSON, INC.

EQUITY II

Processor

8088

Processor Speed

4.77/7.16MHz

Chip Set

Epson

Max. Onboard DRAM

256KB

Cache

None

BIOS

AMI

Dimensions

330mm x 218mm

I/O Options

None

NPU Options

8087

CONNECTIONS

Purpose

Location

Purpose

Location

External memory card connector

CN2

Speaker

CN12

Parallel port

CN3

External battery

CN13

Serial port

CN4

32-bit external memory slot

CN14

Monitor port

CN5

Unknown

CN15

Composite video interface

CN6

32-bit card slot

S1

Floppy drive interface

CN9

32-bit card slot

S2

Floppy drive interface

CN10

32-bit card slot

S3

Power LED & keylock

CN11

   

USER CONFIGURABLE SETTINGS

Function

Switch

Position

Floppy drive A 360KB installed

SW1/1

On

 

Floppy drive A 1.2MB installed

SW1/1

Off

NPU enabled

SW1/2

Off

 

NPU disabled

SW1/2

On

Factory configured - do not alter

SW1/3

Off

Parallel port primary enabled

SW1/4

Off

 

Parallel port secondary enabled

SW1/4

On

Factory configured - do not alter

SW2/1

Off

Factory configured - do not alter

SW2/2

Off

Factory configured - do not alter

SW2/3

Off

Factory configured - do not alter

SW2/4

Off

 

Parity checking enabled

SW2/5

Off

 

Parity checking disabled

SW2/5

On

Factory configured - do not alter

SW2/6

Off

 

Primary internal serial interface enabled

SW2/7

Off

 

Secondary internal serial interface enabled

SW2/7

On

 

Internal serial interface enabled

SW2/8

Off

 

Internal serial interface disabled

SW2/8

On

Factory configured - do not alter

SW3

N/A

Factory configured - do not alter

SW4

On

DRAM CONFIGURATION

Size

Bank 0

Bank 1

640KB

(8) 4164

(8) 41256

Note:The exact locations of Bank 0 and Bank 1 are unknown.

DMA INTERRUPT CONFIGURATION

DMA

J1

J2

Dack 0 enabled

pins 1 & 2 closed

pins 1 & 2 closed

Dack 0 disabled

pins 2 & 3 closed

pins 2 & 3 closed

MONITOR TYPE SELECTION

Type

SW1/switch 5

SW1/switch 6

Internal video disabled

On

On

Monochrome

Off

Off

Color 40 x 25

Off

On

Color 80 x 25

On

Off

FLOPPY DRIVE CONFIGURATION

Number of drives

SW1/switch 7

SW1/switch 8

1

On

On

2

Off

On