UNIDENTIFIED
RS-232 DUAL I/O SHORT CARD
Card Type |
Serial controller |
Chip Set |
Unidentified |
I/O Options |
Serial ports (2) |
Hard Drives supported |
None |
Floppy drives supported |
None |
Data Bus |
8-bit ISA |
Card Size |
Half-length |
CONNECTIONS | |||
Function |
Label |
Function |
Label |
Serial Port 1 |
CN1 |
Serial Port 2 |
CN2 |
SERIAL PORTS CONFIGURATION | ||||||
Setting |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
SW1/5 | |
» |
Port 1=COM2 Port 2=COM1 |
Off |
Off |
Off |
Off |
Off |
Port 1=COM1 Port 2=disabled |
On |
Off |
Off |
Off |
On | |
Port 1=COM2 Port 2=disabled |
Off |
Off |
Off |
Off |
Off | |
Port 1=COM1 Port 2=COM2 |
On |
On |
Off |
Off |
On | |
Port 1=COM3 Port 2=COM4 |
Off |
Off |
On |
On |
Off |
SERIAL PORTS CONFIGURATION (CON’T) | ||||||
Setting |
SW1/6 |
SW1/7 |
SW1/8 |
SW1/9 |
SW1/10 | |
» |
Port 1=COM2 Port 2=COM1 |
On |
On |
Off |
On |
On |
Port 1=COM1 Port 2=disabled |
Off |
Off |
Off |
Off |
Off | |
Port 1=COM2 Port 2=disabled |
On |
Off |
Off |
On |
Off | |
Port 1=COM1 Port 2=COM2 |
Off |
Off |
On |
Off |
Off | |
Port 1=COM3 Port 2=COM4 |
Off |
Off |
Off |
Off |
Off |
SERIAL PORT 1 INTERRUPT SELECTION | ||
IRQ |
SW1/5 |
SW1/6 |
IRQ4 |
On |
Off |
IRQ3 |
Off |
On |
SERIAL PORT 2 INTERRUPT SELECTION | ||
IRQ |
SW1/7 |
SW1/8 |
IRQ3 |
Off |
On |
IRQ4 |
On |
Off |
MISCELLANEOUS TECHNICAL NOTES |
If the computer already has serial ports installed the default settings will not work. |