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422/485PC-40/DB9

ADVANCED MICROCOMPUTER SYSTEMS, INC.

422/485PC-40/DB9

Card Type

Serial card

Chip Set

Unidentified

Maximum Onboard Memory

N/A

I/O Options

Serial ports (4)

Data Bus

16-bit ISA

Floppy drives supported

N/A

CONNECTIONS

Function

Label

Function

Label

9-pin serial port 1

CN1

10-pin serial port 4

CN3

9-pin serial port 2

CN2

10-pin serial port 3

CN4

SERIAL PORT 1 ADDRESS CONFIGURATION

Setting

J7/A

»

COM1 (3F8h)

Closed

 

Disabled

Open

SERIAL PORT 2 ADDRESS CONFIGURATION

Setting

J7/B

»

COM2 (2F8h)

Closed

 

Disabled

Open

SERIAL PORT 3 ADDRESS CONFIGURATION

Setting

J7/C

»

COM3 (3E8h)

Closed

 

Disabled

Open

SERIAL PORT 4 ADDRESS CONFIGURATION

Setting

J7/D

»

COM4 (2E8h)

Closed

 

Disabled

Open

SERIAL PORT 1 INTERRUPT SELECTION

IRQ

SP1/A

SP1/B

SP1/C

SP1/D

SP1/E

SP1/F

 

2/9

Closed

Open

Open

Open

Open

Open

 

3

Open

Closed

Open

Open

Open

Open

»

4

Open

Open

Closed

Open

Open

Open

 

5

Open

Open

Open

Closed

Open

Open

 

6

Open

Open

Open

Open

Closed

Open

 

7

Open

Open

Open

Open

Open

Closed

 

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 1 INTERRUPT SELECTION (CON’T)

IRQ

SP1/G

SP1/H

SP1/I

SP1/J

SP1/K

 

2/9

Open

Open

Open

Open

Open

 

3

Open

Open

Open

Open

Open

»

4

Open

Open

Open

Open

Open

 

5

Open

Open

Open

Open

Open

 

6

Open

Open

Open

Open

Open

 

7

Open

Open

Open

Open

Open

 

10

Closed

Open

Open

Open

Open

 

11

Open

Closed

Open

Open

Open

 

12

Open

Open

Closed

Open

Open

 

14

Open

Open

Open

Closed

Open

 

15

Open

Open

Open

Open

Closed

SERIAL PORT 2 INTERRUPT SELECTION

IRQ

SP2/A

SP2/B

SP2/C

SP2/D

SP2/E

SP2/F

 

2/9

Closed

Open

Open

Open

Open

Open

»

3

Open

Closed

Open

Open

Open

Open

 

4

Open

Open

Closed

Open

Open

Open

 

5

Open

Open

Open

Closed

Open

Open

 

6

Open

Open

Open

Open

Closed

Open

 

7

Open

Open

Open

Open

Open

Closed

 

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 (CON’T)

IRQ

SP2/G

SP2/H

SP2/I

SP2/J

SP2/K

 

2/9

Open

Open

Open

Open

Open

»

3

Open

Open

Open

Open

Open

 

4

Open

Open

Open

Open

Open

 

5

Open

Open

Open

Open

Open

 

6

Open

Open

Open

Open

Open

 

7

Open

Open

Open

Open

Open

 

10

Closed

Open

Open

Open

Open

 

11

Open

Closed

Open

Open

Open

 

12

Open

Open

Closed

Open

Open

 

14

Open

Open

Open

Closed

Open

 

15

Open

Open

Open

Open

Closed

SERIAL PORT 3 INTERRUPT SELECTION

IRQ

SP3/A

SP3/B

SP3/C

SP3/D

SP3/E

SP3/F

 

2/9

Closed

Open

Open

Open

Open

Open

 

3

Open

Closed

Open

Open

Open

Open

 

4

Open

Open

Closed

Open

Open

Open

»

5

Open

Open

Open

Closed

Open

Open

 

6

Open

Open

Open

Open

Closed

Open

 

7

Open

Open

Open

Open

Open

Closed

 

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 (CON’T)

IRQ

SP3/G

SP3/H

SP3/I

SP3/J

SP3/K

 

2/9

Open

Open

Open

Open

Open

 

3

Open

Open

Open

Open

Open

 

4

Open

Open

Open

Open

Open

»

5

Open

Open

Open

Open

Open

 

6

Open

Open

Open

Open

Open

 

7

Open

Open

Open

Open

Open

 

10

Closed

Open

Open

Open

Open

 

11

Open

Closed

Open

Open

Open

 

12

Open

Open

Closed

Open

Open

 

14

Open

Open

Open

Closed

Open

 

15

Open

Open

Open

Open

Closed

SERIAL PORT 4 INTERRUPT SELECTION

IRQ

SP4/A

SP4/B

SP4/C

SP4/D

SP4/E

SP4/F

 

2/9

Closed

Open

Open

Open

Open

Open

 

3

Open

Closed

Open

Open

Open

Open

 

4

Open

Open

Closed

Open

Open

Open

 

5

Open

Open

Open

Closed

Open

Open

 

6

Open

Open

Open

Open

Closed

Open

 

7

Open

Open

Open

Open

Open

Closed

»

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 (CON’T)

IRQ

SP4/G

SP4/H

SP4/I

SP4/J

SP4/K

 

2/9

Open

Open

Open

Open

Open

 

3

Open

Open

Open

Open

Open

 

4

Open

Open

Open

Open

Open

 

5

Open

Open

Open

Open

Open

 

6

Open

Open

Open

Open

Open

 

7

Open

Open

Open

Open

Open

»

10

Closed

Open

Open

Open

Open

 

11

Open

Closed

Open

Open

Open

 

12

Open

Open

Closed

Open

Open

 

14

Open

Open

Open

Closed

Open

 

15

Open

Open

Open

Open

Closed