COMTROL CORPORATION
HOSTESS S
|
Card Type |
I/O controller |
|
Chipset/Controller |
Texas Instruments (UART) |
|
I/O Options |
Serial ports (2) |
|
Maximum DRAM |
N/A |
|
CONNECTIONS | |||
|
Purpose |
Location |
Purpose |
Location |
|
Optional second DB25 connector |
CN1 |
9-pin serial connector |
DB9 |
|
25-pin serial connector |
DB25 |
|
|
|
I/O ADDRESS SELECT | |||
|
Address |
SW1/1 |
SW1/2 |
SW1/3 |
|
200h-207h |
On |
On |
On |
|
280h-287h |
On |
On |
Off |
|
2COh-287h |
On |
Off |
On |
|
300h-307h |
On |
Off |
Off |
|
Reserved |
Off |
On |
On |
|
Reserved |
Off |
On |
Off |
|
Reserved |
Off |
Off |
On |
|
SERIAL PORT INTERRUPT SELECT | |||||
|
IRQ |
SW2/4 |
SW2/5 |
SW2/6 |
SW2/7 |
SW2/8 |
|
IRQ2 |
Off |
Off |
Off |
Off |
On |
|
IRQ3 |
Off |
Off |
Off |
On |
Off |
|
IRQ5 |
Off |
Off |
On |
Off |
Off |
|
IRQ10 |
Off |
On |
Off |
Off |
Off |
|
IRQ11 |
On |
Off |
Off |
Off |
Off |
|
LINE TO LINE TERMINATION SELECT | ||
|
Jumper |
Setting |
Meaning |
|
JP1 |
Closed |
Receive clock for port 1 |
|
JP2 |
Closed |
Receive signal for port 1 |
|
JP3 |
Closed |
Transmit clock for port 1 |
|
JP4 |
Closed |
Receive signal for port 2 |
|
Note:The default position for the jumpers is open. | ||