HwMuseum | Index

BRAIN BOXES

QUAD RS232 (VER. 4.5)

Card Type

Serial controller

Chip Set

Unidentified

Maximum Onboard Memory

Unidentified

I/O Options

Serial ports (4)

Data Bus

16-bit ISA

CONNECTIONS

Function

Label

37-pin serial port connector

CN1

USER CONFIGURABLE SETTINGS

Function

Label

Position

»

Factory configured - do not alter

JP10

Closed

»

Factory configured - do not alter

JP11

Open

»

Factory configured - do not alter

JP12

Closed

»

Factory configured - do not alter

SW1/1

On

»

Factory configured - do not alter

SW1/2

On

»

Factory configured - do not alter

SW1/3

On

»

Factory configured - do not alter

SW1/4

Unidentified

SERIAL PORT 1 ADDRESS SELECTION

Setting

JP1/A

JP1/B

JP1/C

JP1/D

JP1/E

 

COM1 (3F8h)

Open

Open

Open

Closed

Open

»

COM2 (2F8h)

Open

Open

Closed

Open

Open

 

COM3 (3E8h)

Open

Closed

Open

Open

Open

 

COM4 (2E8h)

Closed

Open

Open

Open

Open

 

Bank

Open

Open

Open

Open

Closed

SERIAL PORT 2 ADDRESS SELECTION

Setting

JP2/A

JP2/B

JP2/C

JP2/D

JP2/E

 

COM1 (3F8h)

Open

Open

Open

Closed

Open

 

COM2 (2F8h)

Open

Open

Closed

Open

Open

»

COM3 (3E8h)

Open

Closed

Open

Open

Open

 

COM4 (2E8h)

Closed

Open

Open

Open

Open

 

Bank

Open

Open

Open

Open

Closed

SERIAL PORT 3 ADDRESS SELECTION

Setting

JP3/A

JP3/B

JP3/C

JP3/D

JP3/E

 

COM1 (3F8h)

Open

Open

Open

Closed

Open

 

COM2 (2F8h)

Open

Open

Closed

Open

Open

 

COM3 (3E8h)

Open

Closed

Open

Open

Open

»

COM4 (2E8h)

Closed

Open

Open

Open

Open

 

Bank

Open

Open

Open

Open

Closed

SERIAL PORT 4 ADDRESS SELECTION

Setting

JP4/A

JP4/B

JP4/C

JP4/D

JP4/E

 

COM1 (3F8h)

Open

Open

Open

Closed

Open

 

COM2 (2F8h)

Open

Open

Closed

Open

Open

 

COM3 (3E8h)

Open

Closed

Open

Open

Open

 

COM4 (2E8h)

Closed

Open

Open

Open

Open

»

Bank

Open

Open

Open

Open

Closed

SERIAL PORT 1 INTERRUPT SELECTION

IRQ

JP5/A

JP5/B

JP5/C

JP5/D

JP5/E

JP5/F

»

Shared

Open

Open

Open

Open

Open

Open

 

2

Open

Open

Open

Open

Open

Open

 

3

Open

Open

Open

Open

Open

Open

 

4

Open

Open

Open

Open

Open

Open

 

5

Open

Open

Open

Open

Open

Open

 

6

Open

Open

Open

Open

Open

Open

 

7

Open

Open

Open

Open

Open

Closed

 

10

Open

Open

Open

Open

Closed

Open

 

11

Open

Open

Open

Closed

Open

Open

 

12

Open

Open

Closed

Open

Open

Open

 

14

Open

Closed

Open

Open

Open

Open

 

15

Closed

Open

Open

Open

Open

Open

SERIAL PORT 1 INTERRUPT SELECTION (CON’T)

IRQ

JP5/G

JP5/H

JP5/I

JP5/J

JP5/K

JP5/L

»

Shared

Open

Open

Open

Open

Open

Closed

 

2

Open

Open

Open

Open

Closed

Open

 

3

Open

Open

Open

Closed

Open

Open

 

4

Open

Open

Closed

Open

Open

Open

 

5

Open

Closed

Open

Open

Open

Open

 

6

Closed

Open

Open

Open

Open

Open

 

7

Open

Open

Open

Open

Open

Open

 

10

Open

Open

Open

Open

Open

Open

 

11

Open

Open

Open

Open

Open

Open

 

12

Open

Open

Open

Open

Open

Open

 

14

Open

Open

Open

Open

Open

Open

 

15

Open

Open

Open

Open

Open

Open

SERIAL PORT 2 INTERRUPT SELECTION

IRQ

JP5/A

JP5/B

JP5/C

JP5/D

JP5/E

JP5/F

»

Shared

Open

Open

Open

Open

Open

Open

 

2

Open

Open

Open

Open

Open

Open

 

3

Open

Open

Open

Open

Open

Open

 

4

Open

Open

Open

Open

Open

Open

 

5

Open

Open

Open

Open

Open

Open

 

6

Open

Open

Open

Open

Open

Open

 

7

Open

Open

Open

Open

Open

Closed

 

10

Open

Open

Open

Open

Closed

Open

 

11

Open

Open

Open

Closed

Open

Open

 

12

Open

Open

Closed

Open

Open

Open

 

14

Open

Closed

Open

Open

Open

Open

 

15

Closed

Open

Open

Open

Open

Open

SERIAL PORT 2 INTERRUPT SELECTION (CON’T)

IRQ

JP5/G

JP5/H

JP5/I

JP5/J

JP5/K

JP5/L

»

Shared

Open

Open

Open

Open

Open

Closed

 

2

Open

Open

Open

Open

Closed

Open

 

3

Open

Open

Open

Closed

Open

Open

 

4

Open

Open

Closed

Open

Open

Open

 

5

Open

Closed

Open

Open

Open

Open

 

6

Closed

Open

Open

Open

Open

Open

 

7

Open

Open

Open

Open

Open

Open

 

10

Open

Open

Open

Open

Open

Open

 

11

Open

Open

Open

Open

Open

Open

 

12

Open

Open

Open

Open

Open

Open

 

14

Open

Open

Open

Open

Open

Open

 

15

Open

Open

Open

Open

Open

Open

SERIAL PORT 3 INTERRUPT SELECTION

IRQ

JP5/A

JP5/B

JP5/C

JP5/D

JP5/E

JP5/F

»

Shared

Open

Open

Open

Open

Open

Open

 

2

Open

Open

Open

Open

Open

Open

 

3

Open

Open

Open

Open

Open

Open

 

4

Open

Open

Open

Open

Open

Open

 

5

Open

Open

Open

Open

Open

Open

 

6

Open

Open

Open

Open

Open

Open

 

7

Open

Open

Open

Open

Open

Closed

 

10

Open

Open

Open

Open

Closed

Open

 

11

Open

Open

Open

Closed

Open

Open

 

12

Open

Open

Closed

Open

Open

Open

 

14

Open

Closed

Open

Open

Open

Open

 

15

Closed

Open

Open

Open

Open

Open

SERIAL PORT 3 INTERRUPT SELECTION (CON’T)

IRQ

JP5/G

JP5/H

JP5/I

JP5/J

JP5/K

JP5/L

»

Shared

Open

Open

Open

Open

Open

Closed

 

2

Open

Open

Open

Open

Closed

Open

 

3

Open

Open

Open

Closed

Open

Open

 

4

Open

Open

Closed

Open

Open

Open

 

5

Open

Closed

Open

Open

Open

Open

 

6

Closed

Open

Open

Open

Open

Open

 

7

Open

Open

Open

Open

Open

Open

 

10

Open

Open

Open

Open

Open

Open

 

11

Open

Open

Open

Open

Open

Open

 

12

Open

Open

Open

Open

Open

Open

 

14

Open

Open

Open

Open

Open

Open

 

15

Open

Open

Open

Open

Open

Open

SERIAL PORT 4 INTERRUPT SELECTION

IRQ

JP5/A

JP5/B

JP5/C

JP5/D

JP5/E

JP5/F

»

Shared

Open

Open

Open

Open

Open

Open

 

2

Open

Open

Open

Open

Open

Open

 

3

Open

Open

Open

Open

Open

Open

 

4

Open

Open

Open

Open

Open

Open

 

5

Open

Open

Open

Open

Open

Open

 

6

Open

Open

Open

Open

Open

Open

 

7

Open

Open

Open

Open

Open

Closed

 

10

Open

Open

Open

Open

Closed

Open

 

11

Open

Open

Open

Closed

Open

Open

 

12

Open

Open

Closed

Open

Open

Open

 

14

Open

Closed

Open

Open

Open

Open

 

15

Closed

Open

Open

Open

Open

Open

SERIAL PORT 4 INTERRUPT SELECTION (CON’T)

IRQ

JP5/G

JP5/H

JP5/I

JP5/J

JP5/K

JP5/L

»

Shared

Open

Open

Open

Open

Open

Closed

 

2

Open

Open

Open

Open

Closed

Open

 

3

Open

Open

Open

Closed

Open

Open

 

4

Open

Open

Closed

Open

Open

Open

 

5

Open

Closed

Open

Open

Open

Open

 

6

Closed

Open

Open

Open

Open

Open

 

7

Open

Open

Open

Open

Open

Open

 

10

Open

Open

Open

Open

Open

Open

 

11

Open

Open

Open

Open

Open

Open

 

12

Open

Open

Open

Open

Open

Open

 

14

Open

Open

Open

Open

Open

Open

 

15

Open

Open

Open

Open

Open

Open

SHARED INTERRUPT STATUS REGISTER ADDRESS SELECTION

Setting

SW3/1

SW3/2

SW3/3

SW3/4

SW3/5

SW3/6

SW3/7

SW3/8

SW2/8

 

100h

Off

On

On

On

On

On

On

On

On

 

108h

Off

On

On

On

On

Off

On

On

On

 

110h

Off

On

On

On

Off

On

On

On

On

 

118h

Off

On

On

On

Off

Off

On

On

On

 

120h

Off

On

On

Off

On

On

On

On

On

»

3A0h

Off

Off

On

Off

On

On

On

On

Off

 

3D0h

Off

Off

Off

On

Off

On

On

On

Off

 

3D8h

Off

Off

Off

On

Off

Off

On

On

Off

 

3E0h

Off

Off

Off

Off

On

On

On

On

Off

 

3E8h

Off

Off

Off

Off

On

Off

On

On

Off

 

3F0h

Off

Off

Off

Off

Off

On

On

On

Off

SERIAL PORT BANK ADDRESS SELECTION

Port 1

Port 2

Port 3

Port 4

SW2/1

SW2/2

SW2/3

SW2/4

SW2/5

SW2/6

SW2/7

 

-

-

-

100h

On

Off

On

On

On

Off

Off

 

-

-

100h

108h

On

Off

On

On

On

Off

On

 

-

100h

108h

110h

On

Off

On

On

On

On

Off

 

100h

108h

110h

118h

On

Off

On

On

On

On

On

 

108h

110h

118h

120h

On

Off

On

On

Off

Off

Off

»

180h

188h

190h

198h

On

Off

Off

On

On

On

On

 

3C0

3C8

3D0

3D8

Off

Off

Off

Off

On

On

On

 

3C8

3D0

3D8

3E0

Off

Off

Off

Off

Off

Off

Off

 

3D0

3D8

3E0

3E8

Off

Off

Off

Off

Off

Off

On

 

3D8

3E0

3E8

3F0

Off

Off

Off

Off

Off

On

Off

 

3E0

3E8

3F0

3F8

Off

Off

Off

Off

Off

On

On

Note: A total of 96 base address settings are available. The switches are a binary representation of the decimal memory addresses. SW1/7 is the Least Significant Bit, and switch SW1/1 is the Most Significant Bit. Turn off the switches and add the values of the switches to obtain the correct memory address. (Off=1, On=0). Low address settings will leave some ports disabled. Ports may not be assigned addresses below 100h.