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  | 
| 
 CONNECTIONS  | |||
| 
 Purpose  | 
 Location  | 
 Purpose  | 
 Location  | 
| 
 9-pin serial port connector 1  | 
 J1  | 
 25-pin parallel port connector  | 
 J3  | 
| 
 10-pin serial port interface 2  | 
 J2  | 
 16-pin game port interface  | 
 J4  | 
| 
 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  |