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# SUNTEK INFORMATION SYSTEMS, INC.
I/O EXTENSION XT
Card Type Multi I/O card
Chipset Controller Unidentified
I/O Options Serial port (2), game port, parallel port
Maximum DRAM N/A
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|-------------------+----------+------------------+----------|
| 9-pin serial port | J1 | 25-pin parallel | J3 |
| connector 1 | | port connector | |
|-------------------+----------+------------------+----------|
| 10-pin serial | J2 | 16-pin game port | J4 |
| port interface 2 | | interface | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT BASE I/O ADDRESS SELECTION |
|------------------------------------------------------------|
| Address | SW1/3 |
|-----------------------------------+------------------------|
| » | 378h | Off |
|-----------+-----------------------+------------------------|
| | 278h | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | JP3/A | JP3/B |
|----------------------+------------------+------------------|
| » | 7 | Open | Closed |
|------+---------------+------------------+------------------|
| | 5 | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 & 2 CONFIGURATION |
|------------------------------------------------------------|
| Serial port 1 | Serial port 2 | SW1/1 | SW1/2 |
|--------------------+--------------------+---------+--------|
| COM1 (3F8h - 3FFh) | COM2 (2F8h - 2FFh) | Off | On |
|--------------------+--------------------+---------+--------|
| COM2 (2F8h - 2FFh) | COM3 (3E8h - 3EFh) | On | Off |
|--------------------+--------------------+---------+--------|
| COM3 (3E8h - 3EFh) | COM4 (2E8h - 2EFh) | On | On |
|--------------------+--------------------+---------+--------|
| Disabled | Disabled | Off | Off |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | JP1/A | JP1/B | JP1/C | JP1/D |
|-----------+------------+-----------+-----------+-----------|
| » | 4 | Open | Open | Closed | Open |
|---+-------+------------+-----------+-----------+-----------|
| | 2 | Closed | Open | Open | Open |
|---+-------+------------+-----------+-----------+-----------|
| | 3 | Open | Closed | Open | Open |
|---+-------+------------+-----------+-----------+-----------|
| | 5 | Open | Open | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | JP2/A | JP2/B | JP2/C | JP2/D |
|-----------+------------+-----------+-----------+-----------|
| » | 3 | Open | Closed | Open | Open |
|---+-------+------------+-----------+-----------+-----------|
| | 2 | Closed | Open | Open | Open |
|---+-------+------------+-----------+-----------+-----------|
| | 4 | Open | Open | Closed | Open |
|---+-------+------------+-----------+-----------+-----------|
| | 5 | Open | Open | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REALTIME CLOCK/CALENDAR CONFIGURATION |
|------------------------------------------------------------|
| Setting | SW1/4 |
|-------------------------------+----------------------------|
| Disabled | Off |
|-------------------------------+----------------------------|
| Enabled | On |
+------------------------------------------------------------+
+------------------------------------------------------------+
| REALTIME CLOCK/CALENDAR INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | JP4/A | JP4/B |
|------------------+--------------------+--------------------|
| 2 | Open | Closed |
|------------------+--------------------+--------------------|
| 5 | Closed | Open |
+------------------------------------------------------------+