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# NCL AMERICA
NCL 5427
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Data bus: 8-bit, ISA
Size: Half-length, full-height card
Hard drives supported: Two MFM ST506/412
Floppy drives supported: None
IMG IMG 1
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| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|----------------------------------------------+-------------|
| 34-pin control cable connector-hard drive | CN1 |
|----------------------------------------------+-------------|
| 20-pin data cable connector-drive 0 | CN2 |
|----------------------------------------------+-------------|
| 20-pin data cable connector-drive 1 | CN3 |
|----------------------------------------------+-------------|
| 5-pin connector-DC power | CN4 |
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| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|-----------------------------+----------+-------------------|
| ยป | Supports up to 8 heads | JP1 | pins 1 & 2 closed |
|---+-------------------------+----------+-------------------|
| | Supports up to 16 heads | JP1 | pins 2 & 3 closed |
+------------------------------------------------------------+
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| BIOS DRIVE TYPE TABLE FOR THE NCL5427 - SW1 |
|------------------------------------------------------------|
| Hd/Cyl | # | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| 3/1024 | 1 | on | on | on | off | off | off | off | off |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| | 2 | off | off | off | off | on | on | on | on |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| 4/612 | 1 | on | on | off | off | off | off | off | off |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| | 2 | off | off | off | off | on | on | on | on |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| 6/820 | 1 | on | off | on | off | off | off | off | on |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| 5/1024 | 1 | on | off | on | off | off | off | off | on |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| 4/612 | 1 | off | on | on | off | off | off | off | off |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| | 2 | off | off | off | off | off | on | on | off |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| 8/1024 | 1 | off | on | off | off | off | off | off | on |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| 4/306 | 1 | off | off | on | off | off | off | off | off |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| | 2 | off | off | off | off | off | off | on | off |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| 8/615 | 1 | off | off | off | off | off | off | off | on |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| 7/1024 | 1 | on | on | on | on | off | off | off | on |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| 9/1024 | 1 | on | on | off | on | off | off | off | on |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| 5/695 | 1 | on | on | on | on | off | off | off | off |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| | 2 | on | on | off | on | on | off | on | off |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| 6/1024 | 1 | off | on | off | on | off | off | off | on |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| 10/823 | 1 | on | on | on | on | off | off | off | off |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| | 2 | on | on | off | on | off | on | on | off |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| 4/1024 | 1 | on | on | off | on | off | off | off | on |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| 5/820 | 1 | on | on | on | on | off | off | off | on |
|--------+---+-----+-----+-----+-----+-----+-----+-----+-----|
| 7/820 | 1 | on | on | off | on | off | off | off | on |
|------------------------------------------------------------|
| Note:SW1/switch 8 must be "on" before power-up to enable |
| the drive splitting feature. |
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| MISCELLANEOUS TECHNICAL NOTES |
|------------------------------------------------------------|
| This controller has a built-in, low-level format program. |
| To enter the program run the DEBUG utility supplied with |
| DOS and at the prompt enter: G=C800:5 |
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