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. |