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# COMTROL CORPORATION
HOSTESS 4/8, HOSTESS 550 4/8
Card Type Serial
Chipset 16450 (Hostess 4/8) or 16550 (Hostess 550 4/8)
I/O Options Serial ports (8)
Data Bus 16-bit ISA
Card Size Full height, half length
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|------------------------+-------+-------------------+-------|
| Serial ports via | J1 | Header for 4-port | J3 |
| 100-pin connector | | daughterboard | |
|------------------------+-------+-------------------+-------|
| Header for 4-port | J2 | | |
| daughterboard | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Setting | Label | Position |
|-------------------------------------+-------+--------------|
| » | Card does not have 4-port | JP1 | Pins 2 & 3 |
| | daughterboard installed | | closed |
|---+---------------------------------+-------+--------------|
| | Card has 4-port daughterboard | JP1 | Pins 1 & 2 |
| | installed | | closed |
|---+---------------------------------+-------+--------------|
| | Interrupt mask enabled | SW2/1 | On |
|---+---------------------------------+-------+--------------|
| | Interrupt mask disabled | SW2/1 | Off |
|---+---------------------------------+-------+--------------|
| » | Factory configured - do not | SW2/8 | Unidentified |
| | alter | | |
|------------------------------------------------------------|
| Note:SW2/8 must be off if the daughterboard is |
| installed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| COMTROL MODE ADDRESS SELECTION |
|------------------------------------------------------------|
|Setting |SW1/1 |SW1/2 |SW1/3 |SW1/4 |SW1/5|SW1/6|SW1/7|SW1/8|
|--------+------+------+------+------+-----+-----+-----+-----|
| |0000h | On | On | On | On | On | On | On | On |
|-+------+------+------+------+------+-----+-----+-----+-----|
| |0020h | Off | On | On | On | On | On | On | On |
|-+------+------+------+------+------+-----+-----+-----+-----|
| |0040h | On | Off | On | On | On | On | On | On |
|-+------+------+------+------+------+-----+-----+-----+-----|
| |0060h | Off | Off | On | On | On | On | On | On |
|-+------+------+------+------+------+-----+-----+-----+-----|
| |0080h | On | On | Off | On | On | On | On | On |
|-+------+------+------+------+------+-----+-----+-----+-----|
|»|0280h | On | On | Off | On | Off | On | On | On |
|-+------+------+------+------+------+-----+-----+-----+-----|
| |1F60h | Off | Off | On | Off | Off | Off | Off | Off |
|-+------+------+------+------+------+-----+-----+-----+-----|
| |1F80h | On | On | Off | Off | Off | Off | Off | Off |
|-+------+------+------+------+------+-----+-----+-----+-----|
| |1FA0h | Off | On | Off | Off | Off | Off | Off | Off |
|-+------+------+------+------+------+-----+-----+-----+-----|
| |1FC0h | On | Off | Off | Off | Off | Off | Off | Off |
|-+------+------+------+------+------+-----+-----+-----+-----|
| |1FE0h | Off | Off | Off | Off | Off | Off | Off | Off |
|------------------------------------------------------------|
| Note: A total of 512 base address settings are |
| available. The switches are a binary representation of |
| the decimal memory addresses. SW1/8 is the Most |
| Significant Bit and switch SW1/1 is the Least |
| Significant Bit. The switches have the following |
| decimal values: SW1/8=4096, SW1/7=2048, SW1/6=1024, |
| SW1/5=512, SW1/4=256, SW1/3=128, SW1/2=64, SW1/1=32. |
| Turn off the switches and add the values of the |
| switches that are off to obtain the correct memory |
| address. (Off=1, On=0) |
| |
| SW1/1 must be off if the daughterboard is installed. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT SELECTION |
|------------------------------------------------------------|
| Setting | JP2 |SW2/2 |SW2/3 |SW2/4 |SW2/5 |SW2/6 |SW2/7 |
|---------+--------+------+------+------+------+------+------|
| 2 |Pins 1 &| On | Off | Off | Off | Off | Off |
| | 2 | | | | | | |
|---------+--------+------+------+------+------+------+------|
| 3 |Pins 1 &| Off | On | Off | Off | Off | Off |
| | 2 | | | | | | |
|---------+--------+------+------+------+------+------+------|
| 4 |Pins 1 &| Off | Off | On | Off | Off | Off |
| | 2 | | | | | | |
|---------+--------+------+------+------+------+------+------|
| 5 |Pins 1 &| Off | Off | Off | On | Off | Off |
| | 2 | | | | | | |
|---------+--------+------+------+------+------+------+------|
| 7 |Pins 2 &| Off | Off | Off | Off | Off | Off |
| | 3 | | | | | | |
|---------+--------+------+------+------+------+------+------|
| 10 |Pins 1 &| Off | Off | Off | Off | On | Off |
| | 2 | | | | | | |
|---------+--------+------+------+------+------+------+------|
| 11 |Pins 1 &| Off | Off | Off | Off | Off | On |
| | 2 | | | | | | |
|------------------------------------------------------------|
| Note:Pins designated are in the closed position. |
| |
| IRQ7 is only available on boards that have SW2 marked |
| with INTERRUPT. |
+------------------------------------------------------------+