COMTROL CORPORATION
HOSTESS 550 16
Card Type |
Multi-user serial controller |
Chipset/Controller |
Texas Instruments (UART) |
I/O Options |
Serial ports (16) |
Maximum DRAM |
N/A |
CONNECTIONS | |||
Purpose |
Location |
Purpose |
Location |
100 Pin interface connector |
CN1 |
Daisy chain connector 2 |
J2 |
Daisy chain connector 1 |
J1 | ||
Note: Daisy chain connectors are for the use of multiple cards on the same interrupt. |
RS-232/RS-422 MODE SELECTION | ||
Port |
RS-232 |
RS-422 |
JP1-16/A-C |
Pins 2 & 3 closed |
Pins 1 & 2 closed |
SERIAL PORT INTERRUPT SELECTION | ||||||||
IRQ |
SW2/1 |
SW2/2 |
SW2/3 |
SW2/4 |
SW2/5 |
SW2/6 |
SW2/7 |
SW2/8 |
2/9 |
N/A |
On |
Off |
Off |
Off |
Off |
Off |
Off |
3 |
N/A |
Off |
On |
Off |
Off |
Off |
Off |
Off |
4 |
N/A |
Off |
Off |
On |
Off |
Off |
Off |
Off |
5 |
N/A |
Off |
Off |
Off |
On |
Off |
Off |
Off |
10 |
N/A |
Off |
Off |
Off |
Off |
On |
Off |
Off |
11 |
N/A |
Off |
Off |
Off |
Off |
Off |
On |
Off |
12 |
N/A |
Off |
Off |
Off |
Off |
Off |
Off |
On |
Note: These interrupts are for AT&T, DOS, INTERACTIVE 386/ix, SCO XENIX, and SCO UNIX operating systems. |
MASK INTERRUPT CONFIGURATION | |
Setting |
SW2/1 |
Enabled |
On |
Disabled |
Off |
I/O ADDRESS SELECTION | ||||||||
Address |
SW1/1 |
SW1/2 |
SW1/3 |
SW1/4 |
SW1/5 |
SW1/6 |
SW1/7 |
SW1/8 |
200h |
On |
On |
Off |
On |
On |
On |
On |
On |
280h |
Off |
On |
Off |
On |
On |
On |
On |
On |
500h |
On |
Off |
On |
Off |
On |
On |
On |
On |
580h |
Off |
Off |
On |
Off |
On |
On |
On |
On |
600h |
On |
On |
Off |
Off |
On |
On |
On |
On |
680h |
Off |
On |
Off |
Off |
On |
On |
On |
On |
700h |
On |
Off |
Off |
Off |
On |
On |
On |
On |
Note: These settings are used for SCO XENIX, SCO UNIX, AT&T UNIX, AND INTERACTIVE 386/ix operating systems. |
MISCELLANEOUS TECHNICAL NOTE |
Serial ports are located on an interface box which connects to Hostess 550 via the 100-pin interface connector. |