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# BOCA RESEARCH, INC.
IO650
Card Type Serial Card
Chipset/Controller Unidentified
I/O Options Serial ports (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 | J7/A | J7/B | J4 |
|--------------+-------------------+------------+------------|
| » | COM3 | Pins 2 & 3 closed | Pins 1 & 2 | Pins 2 & 3 |
| | | | closed | closed |
|---+----------+-------------------+------------+------------|
| | COM1 | Pins 1 & 2 closed | Pins 1 & 2 | Pins 2 & 3 |
| | | | closed | closed |
|---+----------+-------------------+------------+------------|
| | COM2 | Pins 1 & 2 closed | Pins 2 & 3 | Pins 2 & 3 |
| | | | closed | closed |
|---+----------+-------------------+------------+------------|
| | COM4 | Pins 2 & 3 closed | Pins 2 & 3 | Pins 2 & 3 |
| | | | closed | closed |
|---+----------+-------------------+------------+------------|
| | Disabled | N/A | N/A | Pins 1 & 2 |
| | | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 CONFIGURATION |
|------------------------------------------------------------|
| COM | J6/A | J6/B | J5 |
|--------------+-------------------+------------+------------|
| » | COM4 | Pins 2 & 3 closed | Pins 2 & 3 | Pins 2 & 3 |
| | | | closed | closed |
|---+----------+-------------------+------------+------------|
| | COM3 | Pins 2 & 3 closed | Pins 1 & 2 | Pins 2 & 3 |
| | | | closed | closed |
|---+----------+-------------------+------------+------------|
| | COM1 | Pins 1 & 2 closed | Pins 1 & 2 | Pins 2 & 3 |
| | | | closed | closed |
|---+----------+-------------------+------------+------------|
| | COM2 | Pins 1 & 2 closed | Pins 2 & 3 | Pins 2 & 3 |
| | | | closed | closed |
|---+----------+-------------------+------------+------------|
| | Disabled | N/A | N/A | Pins 1 & 2 |
| | | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | J2/A | J2/B | J2/C | J2/D |
|-------------+-----------+-----------+-----------+----------|
| » | IRQ5 | Open | Open | Closed | Open |
|---+---------+-----------+-----------+-----------+----------|
| | IRQ3 | Closed | Open | Open | Open |
|---+---------+-----------+-----------+-----------+----------|
| | IRQ4 | Open | Closed | Open | Open |
|---+---------+-----------+-----------+-----------+----------|
| | IRQ9 | Open | Open | Open | Closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | J3/A | J3/B | J3/C | J3/D |
|-------------+-----------+-----------+-----------+----------|
| » | IRQ9 | Open | Open | Open | Closed |
|---+---------+-----------+-----------+-----------+----------|
| | IRQ3 | Closed | Open | Open | Open |
|---+---------+-----------+-----------+-----------+----------|
| | IRQ4 | Open | Closed | Open | Open |
|---+---------+-----------+-----------+-----------+----------|
| | IRQ5 | Open | Open | Closed | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT I/O ADDRESS SELECTION/CLOCK SET |
|------------------------------------------------------------|
|Address Pair | J1/A | J1/B | J1/C | J1/D | J1/E | J1/F |
|-------------+-------+-------+-------+-------+-------+------|
|»|2C0h, 2C8h |Closed |Closed | Open | Open | Open | Open |
|-+-----------+-------+-------+-------+-------+-------+------|
| |2D0h, 2D8h | Open | Open |Closed |Closed | Open | Open |
|-+-----------+-------+-------+-------+-------+-------+------|
| |3C0h, 3C8h | Open | Open | Open | Open |Closed |Closed|
+------------------------------------------------------------+