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# LAVA COMPUTER MFG, INC.
LAVA DSERIAL-DB9
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 1 & 2 closed | All open |
|------------------+--------------------+--------------------|
| COM2 | Pins 2 & 3 closed | All open |
|------------------+--------------------+--------------------|
| COM3 | All open | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| COM4 | All open | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 CONFIGURATION |
|------------------------------------------------------------|
| COM | JP2/A | JP2/B |
|----------------+---------------------+---------------------|
| COM1 | Pins 1 & 2 closed | All open |
|----------------+---------------------+---------------------|
| COM2 | Pins 2 & 3 closed | All open |
|----------------+---------------------+---------------------|
| COM3 | All open | Pins 1 & 2 closed |
|----------------+---------------------+---------------------|
| COM4 | All open | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 INTERRUPT SELECT |
|------------------------------------------------------------|
| IRQ | JP3 | JP4 | JP5 | JP6 |
|-------+-------------+------------+------------+------------|
| IRQ13 | Pins 1 & 2 | All open | All open | All open |
| | closed | | | |
|-------+-------------+------------+------------+------------|
| IRQ12 | All open | Pins 1 & 2 | All open | All open |
| | | closed | | |
|-------+-------------+------------+------------+------------|
| IRQ11 | All open | All open | Pins 1 & 2 | All open |
| | | | closed | |
|-------+-------------+------------+------------+------------|
| IRQ10 | All open | All open | All open | Pins 1 & 2 |
| | | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 INTERRUPT SELECT |
|------------------------------------------------------------|
| IRQ | JP7 | JP8 | JP9 | JP10 |
|------+--------------+------------+------------+------------|
| IRQ5 | Pins 1 & 2 | All open | All open | All open |
| | closed | | | |
|------+--------------+------------+------------+------------|
| IRQ2 | All open | Pins 1 & 2 | All open | All open |
| | | closed | | |
|------+--------------+------------+------------+------------|
| IRQ3 | All open | All open | Pins 1 & 2 | All open |
| | | | closed | |
|------+--------------+------------+------------+------------|
| IRQ4 | All open | All open | All open | Pins 1 & 2 |
| | | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 INTERRUPT SELECT |
|------------------------------------------------------------|
| IRQ | JP3 | JP4 | JP5 | JP6 |
|-------+-------------+------------+------------+------------|
| IRQ13 | Pins 2 & 3 | All open | All open | All open |
| | closed | | | |
|-------+-------------+------------+------------+------------|
| IRQ12 | All open | Pins 2 & 3 | All open | All open |
| | | closed | | |
|-------+-------------+------------+------------+------------|
| IRQ11 | All open | All open | Pins 2 & 3 | All open |
| | | | closed | |
|-------+-------------+------------+------------+------------|
| IRQ10 | All open | All open | All open | Pins 2 & 3 |
| | | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 INTERRUPT SELECT |
|------------------------------------------------------------|
| IRQ | JP7 | JP8 | JP9 | JP10 |
|------+--------------+------------+------------+------------|
| IRQ5 | Pins 2 & 3 | All open | All open | All open |
| | closed | | | |
|------+--------------+------------+------------+------------|
| IRQ2 | All open | Pins 2 & 3 | All open | All open |
| | | closed | | |
|------+--------------+------------+------------+------------|
| IRQ3 | All open | All open | Pins 2 & 3 | All open |
| | | | closed | |
|------+--------------+------------+------------+------------|
| IRQ4 | All open | All open | All open | Pins 2 & 3 |
| | | | | closed |
+------------------------------------------------------------+