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# 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
IMG IMG 1
+------------------------------------------------------------+
| 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 | Off | Off | Off | Off | Off |
| | Port 2=COM1 | | | | | |
|---+----------------+-------+-------+-------+-------+-------|
| | Port 1=COM1 | On | Off | Off | Off | On |
| | Port | | | | | |
| | 2=disabled | | | | | |
|---+----------------+-------+-------+-------+-------+-------|
| | Port 1=COM2 | Off | Off | Off | Off | Off |
| | Port | | | | | |
| | 2=disabled | | | | | |
|---+----------------+-------+-------+-------+-------+-------|
| | Port 1=COM1 | On | On | Off | Off | On |
| | Port 2=COM2 | | | | | |
|---+----------------+-------+-------+-------+-------+-------|
| | Port 1=COM3 | Off | Off | On | On | Off |
| | Port 2=COM4 | | | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORTS CONFIGURATION (CON’T) |
|------------------------------------------------------------|
| Setting | SW1/6 | SW1/7 | SW1/8 | SW1/9 | SW1/10 |
|-------------------+-------+-------+-------+-------+--------|
| » | Port 1=COM2 | On | On | Off | On | On |
| | Port 2=COM1 | | | | | |
|---+---------------+-------+-------+-------+-------+--------|
| | Port 1=COM1 | Off | Off | Off | Off | Off |
| | Port | | | | | |
| | 2=disabled | | | | | |
|---+---------------+-------+-------+-------+-------+--------|
| | Port 1=COM2 | On | Off | Off | On | Off |
| | Port | | | | | |
| | 2=disabled | | | | | |
|---+---------------+-------+-------+-------+-------+--------|
| | Port 1=COM1 | Off | Off | On | Off | Off |
| | Port 2=COM2 | | | | | |
|---+---------------+-------+-------+-------+-------+--------|
| | Port 1=COM3 | Off | Off | Off | Off | Off |
| | Port 2=COM4 | | | | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| 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. |
+------------------------------------------------------------+