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# NCL AMERICA
NCL 536, NCL 537
+------------------------------------------------------------+
|------------------------------------------------------------|
| 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 drives |
| supported: | (NCL 537 only) |
+------------------------------------------------------------+
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|-------------------------------------------------+----------|
| 34-pin control cable connector - floppy drive | CN1 |
| (NCL 537 only) | |
|-------------------------------------------------+----------|
| 40-pin IDE(AT) Interface connector | CN2 |
|-------------------------------------------------+----------|
| 4-pin connector - Drive active LED | CN3 |
|-------------------------------------------------+----------|
| 5-pin connector - DC power | JP11 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|------------------------------------+----------+------------|
| » | Floppy drive port address is | JP1 | Pins 1 & 2 |
| | 3F2-3F7h | | closed |
|---+--------------------------------+----------+------------|
| | Floppy drive port address is | JP1 | Pins 2 & 3 |
| | 372-377h | | closed |
|---+--------------------------------+----------+------------|
| » | Floppy drive interrupt is IRQ6 | JP3 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| | Floppy drive interrupt is | JP3 | Pins 2 & 3 |
| | IRQ10 | | closed |
|---+--------------------------------+----------+------------|
| » | DMA Acknowledge channel is | JP4 | Pins 1 & 2 |
| | DACK2 | | closed |
|---+--------------------------------+----------+------------|
| | DMA Acknowledge channel is | JP4 | Pins 2 & 3 |
| | DACK3 | | closed |
|---+--------------------------------+----------+------------|
| » | IRQ Buffer mode disabled | JP5 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| | IRQ Buffer mode enabled | JP5 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+----------+------------|
| » | DMA Request channel is DRQ2 | JP6 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| | DMA Request channel is DRQ3 | JP6 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+----------+------------|
| » | Hard Drive interrrupt is IRQ14 | JP7 | Pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| | Hard Drive interrrupt is IRQ15 | JP7 | Pins 2 & 3 |
| | | | closed |
|---+--------------------------------+----------+------------|
| » | I/O Channel Ready disabled | JP8 | open |
|---+--------------------------------+----------+------------|
| | I/O Channel Ready enabled | JP8 | closed |
|---+--------------------------------+----------+------------|
| » | Hard drive port address is | JP10 | open |
| | 1F0-1F7h | | |
|---+--------------------------------+----------+------------|
| | Hard drive port address is | JP10 | closed |
| | 170-177h | | |
|---+--------------------------------+----------+------------|
| » | Normal operation mode enabled | E1 | open |
|---+--------------------------------+----------+------------|
| | Diagnostic mode enabled | E1 | closed |
+------------------------------------------------------------+