AST RESEARCH, INC.
FOUR PORT
|
Card Type |
Serial |
|
Chipset |
Unidentified |
|
I/O Options |
Serial ports (4) |
|
Data Bus |
8-bit ISA |
|
Card Size |
Full height, half length |
|
CONNECTIONS | |
|
Function |
Label |
|
Serial ports via DB-37 port |
CN1 |
|
Note:Standard DB-25 serial ports are provided on an included adapter cable. | |
|
USER CONFIGURABLE SETTINGS | |||
|
Setting |
Label |
Position | |
| » |
Interrupt sharing disabled |
SW3/3 |
On |
|
Interrupt sharing enabled |
SW3/3 |
Off | |
| » |
Factory configured - do not alter |
SW3/4 |
Off |
|
INTERRUPT SELECTION | |||||||
|
Setting |
SW1/1 |
SW1/2 |
SW1/3 |
SW2/1 |
SW2/2 |
SW2/3 | |
|
2 |
On |
Off |
Off |
Off |
Off |
Off | |
|
3 |
Off |
On |
Off |
Off |
Off |
Off | |
| » |
4 |
Off |
Off |
On |
Off |
Off |
Off |
|
5 |
Off |
Off |
Off |
On |
Off |
Off | |
|
6 |
Off |
Off |
Off |
Off |
On |
Off | |
|
7 |
Off |
Off |
Off |
Off |
Off |
On | |
|
ADDRESS SELECTION | ||||||
|
Port 1 |
Port 2 |
Port 3 |
Port 4 |
Control |
SW3/1 |
SW3/2 |
|
1A0h |
1A8h |
1B0h |
1B8h |
1BFh |
Off |
Off |
|
2A0h |
2A8h |
2B0h |
2B8h |
2BFh |
Off |
On |
|
3F8h (COM1:) |
2F8h (COM2:) |
1B0h |
1B8h |
1BFh |
On |
Off |
|
3F8h (COM1:) |
2F8h (COM2:) |
2B0h |
2B8h |
2BFh |
On |
On |
