(TXT) View Source
# STB SYSTEMS, INC.
DSP 550
Card Type Multi I/O Card
Chip Set Unidentified
Maximum Onboard Memory N/A
I/O Options Parallel port, serial ports (2)
Data Bus 8-bit ISA
(IMG) IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Label | Function | Label |
|----------------------+-------+---------------------+-------|
| Serial port 1 | CN1 | Parallel port | CN3 |
|----------------------+-------+---------------------+-------|
| Serial port 2 | CN2 | | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Label | Position |
|----------------------------------------+-------+-----------|
| » | Ring indicator signal supplied to | W1 | Pins 1 & |
| | serial port 1 | | 2 closed |
|----+-----------------------------------+-------+-----------|
| | +5 volt signal supplied to serial | W1 | Pins 3 & |
| | port 1 | | 4 closed |
|----+-----------------------------------+-------+-----------|
| » | Ring indicator signal supplied to | W2 | Pins 1 & |
| | serial port 2 | | 2 closed |
|----+-----------------------------------+-------+-----------|
| | +5 volt signal supplied to serial | W2 | Pins 3 & |
| | port 2 | | 4 closed |
|------------------------------------------------------------|
| Note: Jumpers W1 and W2 are used for ensuring |
| compatibility with specialty serial devices and older |
| mouse systems. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT ADDRESS SELECTION |
|------------------------------------------------------------|
| Setting | J11 | J12 |
|------------------+--------------------+--------------------|
| 278h | Pins 1 & 2 closed | Pins 2 & 3 closed |
|------------------+--------------------+--------------------|
| 378h | Pins 1 & 2 closed | Pins 1 & 2 closed |
|------------------+--------------------+--------------------|
| Disabled | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 ADDRESS SELECTION |
|------------------------------------------------------------|
| Setting | J7 | J8 |
|------------------+--------------------+--------------------|
| | 2F8h | Pins 2 & 3 closed | Pins 1 & 2 closed |
|---+--------------+--------------------+--------------------|
| | 3E8h | Pins 1 & 2 closed | Pins 2 & 3 closed |
|---+--------------+--------------------+--------------------|
| » | 3F8h | Pins 1 & 2 closed | Pins 1 & 2 closed |
|---+--------------+--------------------+--------------------|
| | Disabled | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 ADDRESS SELECTION |
|------------------------------------------------------------|
| Setting | J9 | J10 |
|------------------+--------------------+--------------------|
| | 2E8h | Pins 1 & 2 closed | Pins 2 & 3 closed |
|---+--------------+--------------------+--------------------|
| » | 2F8h | Pins 1 & 2 closed | Pins 1 & 2 closed |
|---+--------------+--------------------+--------------------|
| | 3E8h | Pins 2 & 3 closed | Pins 1 & 2 closed |
|---+--------------+--------------------+--------------------|
| | Disabled | Pins 2 & 3 closed | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | J2 | J3 |
|------------------+--------------------+--------------------|
| | IRQ2 | Open | Pins 1 & 2 closed |
|---+--------------+--------------------+--------------------|
| | IRQ3 | Pins 1 & 2 closed | Open |
|---+--------------+--------------------+--------------------|
| » | IRQ4 | Pins 2 & 3 closed | Open |
|---+--------------+--------------------+--------------------|
| | IRQ5 | Open | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | J4 | J5 |
|------------------+--------------------+--------------------|
| | IRQ2 | Open | Pins 1 & 2 closed |
|---+--------------+--------------------+--------------------|
| » | IRQ3 | Pins 1 & 2 closed | Open |
|---+--------------+--------------------+--------------------|
| | IRQ4 | Pins 2 & 3 closed | Open |
|---+--------------+--------------------+--------------------|
| | IRQ5 | Open | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT INTERRUPT SELECTION |
|------------------------------------------------------------|
| IRQ | J1 |
|---------------------------+--------------------------------|
| » | IRQ7 | Pins 1 & 2 closed |
|-----+---------------------+--------------------------------|
| | IRQ5 | Pins 2 & 3 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT MODE SELECTION |
|------------------------------------------------------------|
| Setting | J6 |
|---------------------------+--------------------------------|
| Uni-directional | Pins 2 & 3 open |
|---------------------------+--------------------------------|
| Bi-Directional (EPP/ECP) | Pins 2 & 3 closed |
+------------------------------------------------------------+