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AT TRIPLE RS232

BRAIN BOXES

AT TRIPLE RS232

Card Type

Serial card

Chip Set

Unidentified

Data Bus

8-bit ISA

CONNECTIONS

Function

Label

Function

Label

9-pin serial port 1

CN1

9-pin serial port 3

CN3

9-pin serial port 2

CN2

   

SERIAL PORT 1 ADDRESS SELECTION

COM port

Address

IRQ

J1

 

COM1

3F8h

IRQ4

Pins 1 & 2 closed

COM2

2F8h

IRQ3

Pins 3 & 4 closed

 

COM3

3E8h

IRQ3

Pins 5 & 6 closed

 

COM4

2E8h

IRQ3

Pins 7 & 8 closed

 

COM5

1A0h

IRQ3

Pins 9 & 10 closed

 

COM6

1A8h

IRQ3

Pins 11 & 12 closed

 

COM7

1B0h

IRQ3

Pins 13 & 14 closed

 

COM8

1B8h

IRQ3

Pins 15 & 16 closed

SERIAL PORT 2 ADDRESS SELECTION

COM port

Address

IRQ

J2

 

COM1

3F8h

IRQ4

Pins 1 & 2 closed

 

COM2

2F8h

IRQ3

Pins 3 & 4 closed

COM3

3E8h

IRQ3

Pins 5 & 6 closed

 

COM4

2E8h

IRQ3

Pins 7 & 8 closed

 

COM5

1A0h

IRQ3

Pins 9 & 10 closed

 

COM6

1A8h

IRQ3

Pins 11 & 12 closed

 

COM7

1B0h

IRQ3

Pins 13 & 14 closed

 

COM8

1B8h

IRQ3

Pins 15 & 16 closed

SERIAL PORT 3 ADDRESS SELECTION

COM port

Address

IRQ

J3

 

COM1

3F8h

IRQ4

Pins 1 & 2 closed

 

COM2

2F8h

IRQ3

Pins 3 & 4 closed

 

COM3

3E8h

IRQ3

Pins 5 & 6 closed

COM4

2E8h

IRQ3

Pins 7 & 8 closed

 

COM5

1A0h

IRQ3

Pins 9 & 10 closed

 

COM6

1A8h

IRQ3

Pins 11 & 12 closed

 

COM7

1B0h

IRQ3

Pins 13 & 14 closed

 

COM8

1B8h

IRQ3

Pins 15 & 16 closed

SERIAL PORT IRQ SELECTION

IRQ

JP1

JP2

JP3

 

IRQ2

Pins 11 & 12 closed

Pins 11 & 12 closed

Pins 11 & 12 closed

 

IRQ3

Pins 9 & 10 closed

Pins 9 & 10 closed

Pins 9 & 10 closed

IRQ4

Pins 7 & 8 closed

Pins 7 & 8 closed

Pins 7 & 8 closed

 

IRQ5

Pins 5 & 6 closed

Pins 5 & 6 closed

Pins 5 & 6 closed

 

IRQ6

Pins 3 & 4 closed

Pins 3 & 4 closed

Pins 3 & 4 closed

 

IRQ7

Pins 1 & 2 closed

Pins 1 & 2 closed

Pins 1 & 2 closed

 

IRQ10

Pins 13 & 14 closed

Pins 13 & 14 closed

Pins 13 & 14 closed

 

IRQ11

Pins 15 & 16 closed

Pins 15 & 16 closed

Pins 15 & 16 closed

 

IRQ12

Pins 17 & 18 closed

Pins 17 & 18 closed

Pins 17 & 18 closed

 

IRQ14

Pins 19 & 20 closed

Pins 19 & 20 closed

Pins 19 & 20 closed

 

IRQ15

Pins 21 & 22 closed

Pins 21 & 22 closed

Pins 21 & 22 closed

Note: JP1 controls COM1. JP2 controls COM2. JP3 controls COM3.