NCL AMERICA
NCL 540, NCL 541
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Data bus: 8-bit, ISA
Size: Half-length, full-height card
Hard drives supported: Up to seven SCSI devices
Floppy drives supported: NCL 540: Two 360KB, 720KB, 1.2MB, or 1.44MB
NCL 541: None
Maximum heads/cyl.: 16 heads and 2048 cylinders
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CONNECTIONS | |
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Function |
Location |
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34-pin data cable connector-floppy drive (NCL 540 only) |
CN1 |
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50-pin SCSI connector-internal |
CN2 |
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25-pin SCSI connector-external |
CN3 |
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USER CONFIGURABLE SETTINGS | |||
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Function |
Location |
Setting | |
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Floppy drive port address is 3F2-3F7h (540 only) |
JP1 |
pins 1 & 2 closed | |
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Floppy drive port address is 372-377h (540 only) |
JP1 |
pins 1 & 2 open | |
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Factory configured - do not alter |
JP1 |
pins 3 & 4 closed | |
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Zero wait state disabled |
JP5 |
open | |
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Zero wait state enabled |
JP5 |
closed | |
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INTERRUPT REQUEST | ||||
|
IRQ |
Jumper JP2 |
Jumper JP3 |
Jumper JP4 | |
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IRQ 2 |
open |
open |
closed | |
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IRQ5 |
open |
closed |
open | |
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IRQ7 |
closed |
open |
open | |
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BIOS ADDRESS | ||||
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Address |
Jumper JP6 |
Jumper JP7 |
Jumper JP8 | |
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C800h |
open |
open |
closed | |
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CC00h |
closed |
open |
closed | |
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D800h |
open |
open |
open | |
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DC00h |
closed |
open |
open | |
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E000h |
open |
closed |
open | |
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E400h |
closed |
closed |
open | |
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D000h |
open |
closed |
closed | |
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D400h |
closed |
closed |
closed | |