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# UNIDENTIFIED
AD450 AT I/O CARD
Card Type Multi I/O card
Chipset/Controller N/A
I/O Options Game port, parallel ports (2), serial ports
(2)
Maximum DRAM N/A
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| Serial port 1 | J1 | Game port | J4 |
|-------------------+----------+------------------+----------|
| Serial port 2 | J3 | Parallel port | J5 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT CONFIGURATION |
|------------------------------------------------------------|
| Port 1 | Port 2 | J2/E | J2/F | J2/G |
| (J1) | (J3) | | | |
|--------+--------+----------------+------------+------------|
| COM1 | COM3 | Pins 2 & 3 | Open | Pins 1 & 2 |
| | | closed | | closed |
|--------+--------+----------------+------------+------------|
| COM1 | COM4 | Pins 1 & 2 | Open | Pins 1 & 2 |
| | | closed | | closed |
|--------+--------+----------------+------------+------------|
| COM4 | COM3 | Pins 2 & 3 | Open | Pins 2 & 3 |
| | | closed | | closed |
|--------+--------+----------------+------------+------------|
| COM4 | COM4 | Pins 1 & 2 | Open | Pins 2 & 3 |
| | | closed | | closed |
|--------+--------+----------------+------------+------------|
| COM2 | N/A | N/A | Pins 2 & 3 | N/A |
| | | | closed | |
|--------+--------+----------------+------------+------------|
| N/A | COM2 | N/A | Pins 1 & 2 | N/A |
| | | | closed | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT INTERRUPT SELECTION |
|------------------------------------------------------------|
| Port 1(J1) | Port 2 (J3) | J2/C | J2/D |
|------------+-------------+----------------+----------------|
| ยป | IRQ4 | IRQ3 | Pins 1 & 2 | Pins 2 & 3 |
| | | | closed | closed |
|----+-------+-------------+----------------+----------------|
| | IRQ3 | IRQ4 | Pins 2 & 3 | Pins 1 & 2 |
| | | | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT CONFIGURATION |
|------------------------------------------------------------|
| LPT | J2/B |
|----------------------------+-------------------------------|
| 2 | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 3 | Pins 2 7 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | J2/A |
|----------------------------+-------------------------------|
| 7 | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| 5 | Pins 2 & 3 closed |
+------------------------------------------------------------+