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# BRAIN BOXES
AT TRIPLE RS232
Card Type Serial card
Chip Set Unidentified
Data Bus 8-bit ISA
IMG IMG 1
+------------------------------------------------------------+
| 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 | Pins 11 & 12 | Pins 11 & 12 |
| | | closed | closed | closed |
|----+--------+----------------+--------------+--------------|
| | IRQ3 | Pins 9 & 10 | Pins 9 & 10 | Pins 9 & 10 |
| | | closed | closed | closed |
|----+--------+----------------+--------------+--------------|
| » | IRQ4 | Pins 7 & 8 | Pins 7 & 8 | Pins 7 & 8 |
| | | closed | closed | closed |
|----+--------+----------------+--------------+--------------|
| | IRQ5 | Pins 5 & 6 | Pins 5 & 6 | Pins 5 & 6 |
| | | closed | closed | closed |
|----+--------+----------------+--------------+--------------|
| | IRQ6 | Pins 3 & 4 | Pins 3 & 4 | Pins 3 & 4 |
| | | closed | closed | closed |
|----+--------+----------------+--------------+--------------|
| | IRQ7 | Pins 1 & 2 | Pins 1 & 2 | Pins 1 & 2 |
| | | closed | closed | closed |
|----+--------+----------------+--------------+--------------|
| | IRQ10 | Pins 13 & 14 | Pins 13 & 14 | Pins 13 & 14 |
| | | closed | closed | closed |
|----+--------+----------------+--------------+--------------|
| | IRQ11 | Pins 15 & 16 | Pins 15 & 16 | Pins 15 & 16 |
| | | closed | closed | closed |
|----+--------+----------------+--------------+--------------|
| | IRQ12 | Pins 17 & 18 | Pins 17 & 18 | Pins 17 & 18 |
| | | closed | closed | closed |
|----+--------+----------------+--------------+--------------|
| | IRQ14 | Pins 19 & 20 | Pins 19 & 20 | Pins 19 & 20 |
| | | closed | closed | closed |
|----+--------+----------------+--------------+--------------|
| | IRQ15 | Pins 21 & 22 | Pins 21 & 22 | Pins 21 & 22 |
| | | closed | closed | closed |
|------------------------------------------------------------|
| Note: JP1 controls COM1. JP2 controls COM2. JP3 controls |
| COM3. |
+------------------------------------------------------------+