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# UNIDENTIFIED
PM-550C
+------------------------------------------------------------+
+------------------------------------------------------------+
Data bus: 16-bit, ISA
Size: Half-length, full-height card
Hard drives supported: Two IDE(AT) Interface drives
Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB
drives
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|-----------------------------------------------+------------|
| 2-pin connector - Drive Active LED | J1 |
|-----------------------------------------------+------------|
| 40-pin IDE(AT) Interface connector | CN1 |
|-----------------------------------------------+------------|
| 34-pin control cable connector - floppy drive | CN2 |
|-----------------------------------------------+------------|
| 9-pin serial port 1 (COM1) - external | CN3 |
|-----------------------------------------------+------------|
| 9-pin serial port 2 (COM2) - internal | CN4 |
|-----------------------------------------------+------------|
| 25-pin parallel port - external | CN5 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|----------------------------+-----------+-------------------|
| » | Floppy drive enabled | JP2 | pins 2 & 3 closed |
|---+------------------------+-----------+-------------------|
| | Floppy drive disabled | JP2 | pins 1 & 2 closed |
|---+------------------------+-----------+-------------------|
| » | Hard drive enabled | JP3 | pins 2 & 3 closed |
|---+------------------------+-----------+-------------------|
| | Hard drive disabled | JP3 | pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 CONFIGURATION |
|------------------------------------------------------------|
| Select | JP4/jumper 1 | JP4/jumper 3 |
|------------------------+-----------------+-----------------|
| | Disabled | open | open |
|---+--------------------+-----------------+-----------------|
| » | COM1 (3F8-3FFh) | closed | open |
|---+--------------------+-----------------+-----------------|
| | COM3 (3E8-3EFh) | open | closed |
|---+--------------------+-----------------+-----------------|
| | COM4 (2E8-2EFh) | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 CONFIGURATION |
|------------------------------------------------------------|
| Select | JP4/jumper 2 | JP4/jumper 4 |
|------------------------+-----------------+-----------------|
| | Disabled | open | open |
|---+--------------------+-----------------+-----------------|
| » | COM2 (2F8-2FFh) | closed | open |
|---+--------------------+-----------------+-----------------|
| | COM4 (2E8-2EFh) | open | closed |
|---+--------------------+-----------------+-----------------|
| | COM3 (3E8-3EFh) | closed | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT CONFIGURATION |
|------------------------------------------------------------|
| Select | JP4/jumper 5 | JP4/jumper 6 |
|------------------------+-----------------+-----------------|
| | Disabled | open | open |
|---+--------------------+-----------------+-----------------|
| » | LPT1 (278-27Fh) | closed | open |
|---+--------------------+-----------------+-----------------|
| | LPT2 (378-37Fh) | open | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 INTERRUPT REQUEST |
|------------------------------------------------------------|
| Select | JP5/jumper 1 | JP5/jumper 2 | JP5/jumper 3 |
|------------+---------------+---------------+---------------|
| » | IRQ4 | closed | open | open |
|---+--------+---------------+---------------+---------------|
| | IRQ5 | open | closed | open |
|---+--------+---------------+---------------+---------------|
| | IRQ9 | open | open | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 INTERRUPT REQUEST |
|------------------------------------------------------------|
| Select | JP6/jumper 1 | JP6/jumper 2 | JP6/jumper 3 |
|------------+---------------+---------------+---------------|
| » | IRQ3 | closed | open | open |
|---+--------+---------------+---------------+---------------|
| | IRQ9 | open | closed | open |
|---+--------+---------------+---------------+---------------|
| | IRQ5 | open | open | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT INTERRUPT REQUEST |
|------------------------------------------------------------|
| Select | JP7 | JP7A |
|------------------------+-----------------+-----------------|
| | Disabled | open | open |
|----+-------------------+-----------------+-----------------|
| | IRQ5 | closed | open |
|----+-------------------+-----------------+-----------------|
| » | IRQ7 | open | closed |
+------------------------------------------------------------+