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# BRAIN BOXES
AT OPTO DUAL 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 | CN1 | 26-pin parallel port | CN3 |
| | | - internal | |
|--------------------+-------+-----------------------+-------|
| 25-pin serial port | CN2 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|----------------------------------+--------------+----------|
| » | Parallel port unidirectional | J1/pins 11 & | Open |
| | | 12 | |
|---+------------------------------+--------------+----------|
| | Parallel port bidirectional | J1/pins 11 & | Closed |
| | | 12 | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT ADDRESS SELECTION |
|------------------------------------------------------------|
| Setting | J2 Port 1 | J2 Port 2 |
|----------------+---------------------+---------------------|
| COM1 | Pins 1 & 2 closed | Pins 2 & 3 closed |
|----------------+---------------------+---------------------|
| COM2 | Pins 4 & 5 closed | Pins 5 & 6 closed |
|----------------+---------------------+---------------------|
| COM3 | Pins 7 & 8 closed | Pins 8 & 9 closed |
|----------------+---------------------+---------------------|
| COM4 | Pins 10 & 11 closed | Pins 11 & 12 closed |
|----------------+---------------------+---------------------|
| COM5 | Pins 13 & 14 closed | Pins 14 & 15 closed |
|----------------+---------------------+---------------------|
| COM6 | Pins 16 & 17 closed | Pins 17 & 18 closed |
|----------------+---------------------+---------------------|
| COM7 | Pins 19 & 20 closed | Pins 20 & 21 closed |
|----------------+---------------------+---------------------|
| COM8 | Pins 22 & 23 closed | Pins 23 & 24 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | J3 |
|----------------------------+-------------------------------|
| | IRQ2 | Pins 11 & 12 closed |
|----+-----------------------+-------------------------------|
| » | IRQ3 | Pins 9 & 10 closed |
|----+-----------------------+-------------------------------|
| | IRQ4 | Pins 7 & 8 closed |
|----+-----------------------+-------------------------------|
| | IRQ5 | Pins 5 & 6 closed |
|----+-----------------------+-------------------------------|
| | IRQ6 | Pins 3 & 4 closed |
|----+-----------------------+-------------------------------|
| | IRQ7 | Pins 1 & 2 closed |
|----+-----------------------+-------------------------------|
| | IRQ10 | Pins 13 & 14 closed |
|----+-----------------------+-------------------------------|
| | IRQ11 | Pins 15 & 16 closed |
|----+-----------------------+-------------------------------|
| | IRQ12 | Pins 17 & 18 closed |
|----+-----------------------+-------------------------------|
| | IRQ14 | Pins 19 & 20 closed |
|----+-----------------------+-------------------------------|
| | IRQ15 | Pins 21 & 22 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | J4 |
|----------------------------+-------------------------------|
| | IRQ2 | Pins 11 & 12 closed |
|----+-----------------------+-------------------------------|
| » | IRQ3 | Pins 9 & 10 closed |
|----+-----------------------+-------------------------------|
| | IRQ4 | Pins 7 & 8 closed |
|----+-----------------------+-------------------------------|
| | IRQ5 | Pins 5 & 6 closed |
|----+-----------------------+-------------------------------|
| | IRQ6 | Pins 3 & 4 closed |
|----+-----------------------+-------------------------------|
| | IRQ7 | Pins 1 & 2 closed |
|----+-----------------------+-------------------------------|
| | IRQ10 | Pins 13 & 14 closed |
|----+-----------------------+-------------------------------|
| | IRQ11 | Pins 15 & 16 closed |
|----+-----------------------+-------------------------------|
| | IRQ12 | Pins 17 & 18 closed |
|----+-----------------------+-------------------------------|
| | IRQ14 | Pins 19 & 20 closed |
|----+-----------------------+-------------------------------|
| | IRQ15 | Pins 21 & 22 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | J1/pins 7 & 8 | J1/pins 9 & 10 |
|------------------+--------------------+--------------------|
| | IRQ7 | Open | Closed |
|---+--------------+--------------------+--------------------|
| » | IRQ5 | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT SELECTION |
|------------------------------------------------------------|
| Setting | J1/pins 1 & 2 | J1/pins 3 & 4 | J1/pins 5 & 6 |
|------------+---------------+---------------+---------------|
| | LPT1 | Closed | Open | Open |
|---+--------+---------------+---------------+---------------|
| | LPT2 | Open | Closed | Open |
|---+--------+---------------+---------------+---------------|
| » | LPT3 | Open | Open | Closed |
+------------------------------------------------------------+