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# LAVA COMPUTER MFG, INC.
LAVA DSERIAL
Card Type Serial
Chipset Controller 16450/16550 UART
I/O Options Serial port (2)
Maximum Dram N/A
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------+--------------+---------------+-------------|
| Serial port 1 | CN1 | Serial port 2 | CN2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 CONFIGURATION |
|------------------------------------------------------------|
| COM | JP1/A | JP1/B |
|----------------+---------------------+---------------------|
| COM1 | Pins 2 & 3 closed | All open |
|----------------+---------------------+---------------------|
| COM2 | Pins 1 & 2 closed | All open |
|----------------+---------------------+---------------------|
| COM3 | All open | Pins 2 & 3 closed |
|----------------+---------------------+---------------------|
| COM4 | All open | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 CONFIGURATION |
|------------------------------------------------------------|
| COM | JP2/A | JP2/B |
|----------------+---------------------+---------------------|
| COM1 | Pins 2 & 3 closed | All open |
|----------------+---------------------+---------------------|
| COM2 | Pins 1 & 2 closed | All open |
|----------------+---------------------+---------------------|
| COM3 | All open | Pins 2 & 3 closed |
|----------------+---------------------+---------------------|
| COM4 | All open | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 INTERRUPT SELECT |
|------------------------------------------------------------|
| Setting | JP3 |
|----------------------------+-------------------------------|
| IRQ4 | Pins 1 & 2 closed |
|----------------------------+-------------------------------|
| IRQ3 | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 INTERRUPT SELECT |
|------------------------------------------------------------|
| Setting | JP3 |
|----------------------------+-------------------------------|
| IRQ3 | Pins 3 & 4 closed |
|----------------------------+-------------------------------|
| IRQ4 | Pins 4 & 5 closed |
+------------------------------------------------------------+