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# UNIDENTIFIED
PM-520
+------------------------------------------------------------+
|------------------------------------------------------------|
| Data bus: | 16-bit, ISA |
|-------------------+----------------------------------------|
| Size: | Half-length, full-height card |
|-------------------+----------------------------------------|
| Hard drive | Two IDE (AT) interface drives |
| supported: | |
|-------------------+----------------------------------------|
| Floppy drives | Two 360KB, 720KB, 1.2MB, or 1.44MB |
| supported: | drives |
+------------------------------------------------------------+
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|-----------------------------------------------+------------|
| 2-pin connector - drive active LED | J1 |
|-----------------------------------------------+------------|
| 34-pin control cable connector - floppy drive | J2 |
|-----------------------------------------------+------------|
| Game port | J3 |
|-----------------------------------------------+------------|
| 10-pin serial port 2 - internal | J4 |
|-----------------------------------------------+------------|
| 40-pin IDE (AT) Interface connector | J5 |
|-----------------------------------------------+------------|
| 9-pin serial port 1 - external | J6 |
|-----------------------------------------------+------------|
| 25-pin parallel port | J7 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|-----------------------------------+-----------+------------|
| » | Embedded hard drive control | JP1 & JP3 | Closed |
| | enabled | | |
|---+-------------------------------+-----------+------------|
| | Embedded hard drive control | JP1 & JP3 | Open |
| | disabled | | |
|---+-------------------------------+-----------+------------|
| » | Factory configured - do not | JP2 | Pins 2 & 3 |
| | alter | | closed |
|---+-------------------------------+-----------+------------|
| » | Floppy drive enabled | JP9 | Pins 2 & 3 |
| | | | closed |
|---+-------------------------------+-----------+------------|
| | Floppy drive disabled | JP9 | Pins 1 & 2 |
| | | | closed |
|---+-------------------------------+-----------+------------|
| » | Factory configured - do not | JP10 | Pins 2 & 3 |
| | alter | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| PARALLEL PORT CONFIGURATION |
|------------------------------------------------------------|
| LPT/Address | JP4 | JP5 |
|------------------+--------------------+--------------------|
| » | LPT2/378h | Pins 2 & 3 closed | Pins 2 & 3 closed |
|---+--------------+--------------------+--------------------|
| | LPT1/3BCh | Pins 1 & 2 closed | Pins 2 & 3 closed |
|---+--------------+--------------------+--------------------|
| | LPT3/278h | Pins 2 & 3 closed | Pins 1 & 2 closed |
|---+--------------+--------------------+--------------------|
| | Disabled | Pins 1 & 2 closed | Pins 1 & 2 closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 1 CONFIGURATION |
|------------------------------------------------------------|
| COM | JP6 | JP8 |
|------------------+--------------------+--------------------|
| » | COM1 | Pins 2 & 3 closed | Pins 2 & 3 closed |
|---+--------------+--------------------+--------------------|
| | COM2 | Pins 2 & 3 closed | Pins 1 & 2 closed |
|---+--------------+--------------------+--------------------|
| | Disabled | Pins 1 & 2 closed | N/A |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SERIAL PORT 2 CONFIGURATION |
|------------------------------------------------------------|
| COM | JP7 | JP8 |
|------------------+--------------------+--------------------|
| » | COM2 | Pins 2 & 3 closed | Pins 2 & 3 closed |
|---+--------------+--------------------+--------------------|
| | COM1 | Pins 2 & 3 closed | Pins 1 & 2 closed |
|---+--------------+--------------------+--------------------|
| | Disabled | Pins 1 & 2 closed | N/A |
+------------------------------------------------------------+