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# NATIONAL INSTRUMENTS
PC-DIO-24
Card Type Digital I/O card
Chip Set OKI
I/O Options 50-pin interface
Data Bus 16-bit ISA
Card Size Half-length, full-height
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label |
|-------------------------------+----------------------------|
| 50-pin interface | J1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BASE I/O ADDRESS SELECTION |
|------------------------------------------------------------|
| Setting | U2/1 | U2/2 | U2/3 |U2/4 |U2/5 |U2/6 |U2/7 |U2/8 |
|---------+------+------+------+-----+-----+-----+-----+-----|
| 100h | Off | On | On | On | On | On | On | On |
|---------+------+------+------+-----+-----+-----+-----+-----|
| 200h | On | Off | On | On | On | On | On | On |
|---------+------+------+------+-----+-----+-----+-----+-----|
| »210h | Off | On | On | On | On | Off | On | On |
|---------+------+------+------+-----+-----+-----+-----+-----|
| 300h | Off | Off | On | On | On | On | On | On |
|---------+------+------+------+-----+-----+-----+-----+-----|
| 400h | On | On | Off | On | On | On | On | On |
|---------+------+------+------+-----+-----+-----+-----+-----|
| EF00h | Off | Off | Off | Off | On | Off | Off | Off |
|---------+------+------+------+-----+-----+-----+-----+-----|
| FB00h | Off | Off | On | Off | Off | Off | Off | Off |
|---------+------+------+------+-----+-----+-----+-----+-----|
| FD00h | Off | On | Off | Off | Off | Off | Off | Off |
|---------+------+------+------+-----+-----+-----+-----+-----|
| FE00h | On | Off | Off | Off | Off | Off | Off | Off |
|---------+------+------+------+-----+-----+-----+-----+-----|
| FF00h | Off | Off | Off | Off | Off | Off | Off | Off |
|------------------------------------------------------------|
| Note: |
| |
|A total of 255 base address settings are available. The |
|switches are a binary representation of the decimal memory |
|addresses. U2/8 is the Most Significant Bit and switch U2/1 |
|is the Least Significant Bit. The switches have the |
|following decimal values: U2/8=32768, U2/7=16384, U2/6=8192,|
|U2/5=4096, U2/4=2048, U2/3=1024, U2/2=512, U2/1=256. Turn |
|off the switches and add the values of the switches to |
|obtain the correct memory address. (Off=1, On=0) |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT ENABLE LINE SELECTION |
|------------------------------------------------------------|
| Line | W1/A | W1/B | W1/C | W1/D |
|----------------+----------+----------+----------+----------|
| PC2 | Open | Open | Closed | Open |
|----------------+----------+----------+----------+----------|
| »PC4 | Open | Closed | Open | Open |
|----------------+----------+----------+----------+----------|
| PC6 | Closed | Open | Open | Open |
|----------------+----------+----------+----------+----------|
| N/C (disabled) | Open | Open | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | W2/A | W2/B | W2/C | W2/D | W2/E | W2/F |
|------+--------+--------+--------+--------+--------+--------|
| 3 | Closed | Open | Open | Open | Open | Open |
|------+--------+--------+--------+--------+--------+--------|
| 4 | Open | Closed | Open | Open | Open | Open |
|------+--------+--------+--------+--------+--------+--------|
| »5 | Open | Open | Closed | Open | Open | Open |
|------+--------+--------+--------+--------+--------+--------|
| 6 | Open | Open | Open | Closed | Open | Open |
|------+--------+--------+--------+--------+--------+--------|
| 7 | Open | Open | Open | Open | Closed | Open |
|------+--------+--------+--------+--------+--------+--------|
| 9 | Open | Open | Open | Open | Open | Closed |
+------------------------------------------------------------+