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# BOCA RESEARCH INC.
IO/AT 44
Card Type Multi I/O card
Chipset/Controller Startech
I/O Options Parallel ports (2), serial ports (2)
Maximum DRAM N/A
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Purpose | Location | Purpose | Location |
|---------------+-------------+-----------------+------------|
| Serial port 1 | J1 | Parallel port 1 | J5 |
|---------------+-------------+-----------------+------------|
| Serial port 2 | J2 | Parallel port 2 | J6 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT CONFIGURATION |
|------------------------------------------------------------|
| Port 1 (J5) | Port 2 (J3) | J3/A | J3/B |
|--------------+-------------+------------------+------------|
| » | LPT1 | LPT2 | Pins 1 & 2 | Pins 2 & 3 |
| | | | closed | closed |
|---+----------+-------------+------------------+------------|
| | LPT2 | LPT1 | Pins 2 & 3 | Pins 1 & 2 |
| | | | closed | closed |
|---+----------+-------------+------------------+------------|
| | Disabled | LPT1 | Open | Pins 1 & 2 |
| | | | | closed |
|---+----------+-------------+------------------+------------|
| | Disabled | LPT2 | Open | Pins 2 & 3 |
| | | | | closed |
|---+----------+-------------+------------------+------------|
| | LPT1 | Disabled | Pins 1 & 2 | Open |
| | | | closed | |
|---+----------+-------------+------------------+------------|
| | LPT2 | Disabled | Pins 2 & 3 | Open |
| | | | closed | |
|---+----------+-------------+------------------+------------|
| | Disabled | Disabled | Open | Open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT INTERRUPT SELECT |
|------------------------------------------------------------|
| Port 1 (J5) | Port 2 (J3) | J3C | J3D |
|-------------+-------------+-------------------+------------|
| IRQ7 | IRQ5 | Pins 1 & 2 closed | Pins 2 & 3 |
| | | | closed |
|-------------+-------------+-------------------+------------|
| IRQ5 | IRQ7 | Pins 2 & 3 closed | Pins 1 & 2 |
| | | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT CONFIGURATION |
|------------------------------------------------------------|
| Port 1 (J1) | Port 2 | J4/A | J4/B | J4/C | J4/D |
| | (J2) | | | | |
|--------------+----------+--------+--------+--------+-------|
| » | COM1 | COM2 | Pins 1 | Pins 2 | Open | Open |
| | | | & 2 | & 3 | | |
|---+----------+----------+--------+--------+--------+-------|
| | COM1 | COM3 | Pins 1 | Open | Open | Pins |
| | | | & 2 | | | 1 & 2 |
|---+----------+----------+--------+--------+--------+-------|
| | COM1 | COM4 | Pins 1 | Open | Open | Pins |
| | | | & 2 | | | 2 & 3 |
|---+----------+----------+--------+--------+--------+-------|
| | COM2 | COM1 | Pins 2 | Pins 1 | Open | Open |
| | | | & 3 | & 2 | | |
|---+----------+----------+--------+--------+--------+-------|
| | COM2 | COM3 | Pins 2 | Open | Open | Pins |
| | | | & 3 | | | 1 & 2 |
|---+----------+----------+--------+--------+--------+-------|
| | COM2 | COM4 | Pins 2 | Open | Open | Pins |
| | | | & 3 | | | 2 & 3 |
|---+----------+----------+--------+--------+--------+-------|
| | COM3 | COM1 | Open | Pins 1 | Pins 1 | Open |
| | | | | & 2 | & 2 | |
|---+----------+----------+--------+--------+--------+-------|
| | COM3 | COM2 | Open | Pins 2 | Pins 1 | Open |
| | | | | & 3 | & 2 | |
|---+----------+----------+--------+--------+--------+-------|
| | COM3 | COM4 | Open | Open | Pins 1 | Pins |
| | | | | | & 2 | 2 & 3 |
|---+----------+----------+--------+--------+--------+-------|
| | COM4 | COM1 | Open | Pins 1 | Pins 2 | Open |
| | | | | & 2 | & 3 | |
|---+----------+----------+--------+--------+--------+-------|
| | COM4 | COM2 | Open | Pins 2 | Pins 2 | Open |
| | | | | & 3 | & 3 | |
|---+----------+----------+--------+--------+--------+-------|
| | COM4 | COM3 | Open | Open | Pins 2 | Pins |
| | | | | | & 3 | 1 & 2 |
|---+----------+----------+--------+--------+--------+-------|
| | Disabled | COM1 | Open | Pins 1 | Open | Open |
| | | | | & 2 | | |
|---+----------+----------+--------+--------+--------+-------|
| | Disabled | COM2 | Open | Pins 2 | Open | Open |
| | | | | & 3 | | |
|---+----------+----------+--------+--------+--------+-------|
| | Disabled | COM3 | Open | Open | Open | Pins |
| | | | | | | 1 & 2 |
|---+----------+----------+--------+--------+--------+-------|
| | Disabled | COM4 | Open | Open | Open | Pins |
| | | | | | | 2 & 3 |
|---+----------+----------+--------+--------+--------+-------|
| | COM1 | Disabled | Pins 1 | Open | Open | Open |
| | | | & 2 | | | |
|---+----------+----------+--------+--------+--------+-------|
| | COM2 | Disabled | Pins 2 | Open | Open | Open |
| | | | & 3 | | | |
|---+----------+----------+--------+--------+--------+-------|
| | COM3 | Disabled | Open | Open | Pins 1 | Open |
| | | | | | & 2 | |
|---+----------+----------+--------+--------+--------+-------|
| | COM4 | Disabled | Open | Open | Pins 2 | Open |
| | | | | | & 3 | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT INTERRUPT SELECT |
|------------------------------------------------------------|
| Port 1 (J1) | Port 2 | J4/E | J4/F | J4/G | J4/H |
| | (J2) | | | | |
|--------------+----------+--------+--------+--------+-------|
| » | IRQ4 | IRQ3 | Open | Open | Pins 1 | Pins |
| | | | | | & 2 | 2 & 3 |
|---+----------+----------+--------+--------+--------+-------|
| | IRQ4 | IRQ2 | Open | Pins 1 | Pins 1 | Open |
| | | | | & 2 | & 2 | |
|---+----------+----------+--------+--------+--------+-------|
| | IRQ4 | IRQ5 | Open | Pins 2 | Pins 1 | Open |
| | | | | & 3 | & 2 | |
|---+----------+----------+--------+--------+--------+-------|
| | IRQ2 | IRQ3 | Pins 1 | Open | Open | Pins |
| | | | & 2 | | | 2 & 3 |
|---+----------+----------+--------+--------+--------+-------|
| | IRQ2 | IRQ4 | Pins 1 | Open | Open | Pins |
| | | | & 2 | | | 1 & 2 |
|---+----------+----------+--------+--------+--------+-------|
| | IRQ2 | IRQ5 | Pins 1 | Pins 2 | Open | Open |
| | | | & 2 | & 3 | | |
|---+----------+----------+--------+--------+--------+-------|
| | IRQ3 | IRQ2 | Open | Pins 1 | Pins 2 | Open |
| | | | | & 2 | & 3 | |
|---+----------+----------+--------+--------+--------+-------|
| | IRQ3 | IRQ4 | Open | Open | Pins 2 | Pins |
| | | | | | & 3 | 1 & 2 |
|---+----------+----------+--------+--------+--------+-------|
| | IRQ3 | IRQ5 | Open | Pins 2 | Pins 2 | Open |
| | | | | & 3 | & 3 | |
|---+----------+----------+--------+--------+--------+-------|
| | IRQ5 | IRQ2 | Pins 2 | Pins 1 | Open | Open |
| | | | & 3 | & 2 | | |
|---+----------+----------+--------+--------+--------+-------|
| | IRQ5 | IRQ3 | Pins 2 | Open | Open | Pins |
| | | | & 3 | | | 2 & 3 |
|---+----------+----------+--------+--------+--------+-------|
| | IRQ5 | IRQ4 | Pins 2 | Open | Open | Pins |
| | | | & 3 | | | 1 & 2 |
|---+----------+----------+--------+--------+--------+-------|
| | Disabled | IRQ2 | Open | Pins 1 | Open | Open |
| | | | | & 2 | | |
|---+----------+----------+--------+--------+--------+-------|
| | Disabled | IRQ3 | Open | Open | Open | Pins |
| | | | | | | 2 & 3 |
|---+----------+----------+--------+--------+--------+-------|
| | Disabled | IRQ4 | Open | Open | Open | Pins |
| | | | | | | 1 & 2 |
|---+----------+----------+--------+--------+--------+-------|
| | Disabled | IRQ5 | Open | Pins 2 | Open | Open |
| | | | | & 3 | | |
|---+----------+----------+--------+--------+--------+-------|
| | IRQ2 | Disabled | Pins 1 | Open | Open | Open |
| | | | & 2 | | | |
|---+----------+----------+--------+--------+--------+-------|
| | IRQ3 | Disabled | Open | Open | Pins 2 | Open |
| | | | | | & 3 | |
|---+----------+----------+--------+--------+--------+-------|
| | IRQ4 | Disabled | Open | Open | Pins 1 | Open |
| | | | | | & 2 | |
|---+----------+----------+--------+--------+--------+-------|
| | IRQ5 | Disabled | Pins 2 | Open | Open | Open |
| | | | & 3 | | | |
|------------------------------------------------------------|
| Note: Pins designated should be in the closed position. |
+------------------------------------------------------------+