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ACS-1000

ACS, INC.

ACS-1000

Processor

8088

Processor Speed

4.77/8MHz

Chip Set

Unidentified

Video Chip Set

None

Maximum Onboard Memory

1MB

Maximum Video Memory

None

Cache

None

BIOS

Unidentified

Dimensions

305mm x 216mm

I/O Options

Floppy drive interfaces (2), SASI connector, parallel port, serial ports (2), serial bus connector

NPU Options

8087

CONNECTIONS

Purpose

Location

Purpose

Location

Reset switch

E2

Serial port

P7

Speaker

P2

Parallel port

P8

Floppy drive interface

P3

Reset switch

P9

Floppy drive interface

P4

SASI interface

P10

Serial bus connector

P5

External battery

P11

Serial port

P6

   

USER CONFIGURABLE SETTINGS

Function

Label

Position

Normal reset operation enabled

E2

Open

 

Reset controlled by power supply signal

E2

Closed

POST normal operation

S1/1

Off

 

POST special test

S1/1

On

NPU not installed

S1/2

On

 

NPU installed

S1/2

Off

BIOS type select 8K/16K

S1/10

Off

 

BIOS type select 32K

S1/10

On

DRAM CONFIGURATION

Size

Bank 0

Bank 1

Bank 2

Bank 3

64KB

64K

None

None

None

128KB

64K

64K

None

None

192KB

64K

64K

64K

None

256KB (A)

64K

64K

64K

64K

256KB (B)

256K

None

None

None

512KB

256K

256K

None

None

640KB

256K

256K

64K

64K

1MB

256K

256K

256K

256K

Note: The size of the chips are unidentified.

DRAM SWITCH CONFIGURATION

Size

S1/3

S1/4

S1/9

64KB

On

On

Off

128KB

Off

On

Off

192KB

On

Off

Off

256KB (A)

Off

Off

Off

256KB (B)

On

On

On

512KB

Off

On

On

640KB

Off

Off

On

1MB

On

Off

On

CPU SPEED SELECTION

Speed

E1

Keyboard selectable

Pins 1 & 2 closed

4.77MHz

Pins 2 & 3 closed

8MHz

Pins 3 & 4 closed

PARALLEL PORT ADDRESS SELECTION

Setting

E3

LPT2 if another device is set as LPT1. It is set as LPT1 if no other device is installed.

Pins 1 & 2 closed

 

LPT1 at all times

Pins 3 & 4 closed

SERIAL PORT ADDRESS SELECTION (P6)

Setting

E4

COM1

Pins 1 & 2 closed

 

COM2

Pins 3 & 4 closed

 

COM3

Pins 5 & 6 closed

 

COM4

Pins 7 & 8 closed

SERIAL PORT INTERRUPT SELECTION (P6)

IRQ

E6

 

IRQ2

Pins 5 & 6 closed

 

IRQ3

Pins 3 & 4 closed

IRQ4

Pins 1 & 2 closed

SERIAL PORT ADDRESS SELECTION (P7)

Setting

E5

 

COM1

Pins 1 & 2 closed

COM2

Pins 3 & 4 closed

 

COM3

Pins 5 & 6 closed

 

COM4

Pins 7 & 8 closed

SERIAL PORT INTERRUPT SELECTION (P7)

IRQ

E7

 

IRQ2

Pins 5 & 6 closed

IRQ3

Pins 3 & 4 closed

 

IRQ4

Pins 1 & 2 closed

MONITOR SELECTION

Setting

S1/5

S1/6

 

None installed

On

On

80 x 25 color

On

Off

 

40 x 25 color

Off

On

 

Monochrome

Off

Off

FLOPPY DRIVE SELECTION

Drives installed

S1/7

S1/8

 

1

On

On

2

Off

On

 

3

On

Off

 

4

Off

Off