NCL AMERICA
NCL 5275, NCL 5276
Data bus: 16-bit, ISA
Size: Half-length, full-height card
Hard drives supported: Two ST506/412 RLL drives
Floppy drives supported: NCL 5275: Two 360KB, 720KB, 1.2MB, or 1.44MB
NCL 5276: None
Maximum heads/cyl.: 16 heads and 2048 cylinders
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CONNECTIONS | |
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34-pin control cable connector-hard drive |
CN1 |
|
20-pin data cable connector-drive 0 |
CN2 |
|
20-pin data cable connector-drive 1 |
CN3 |
|
34-pin data cable connector-floppy drive |
CN4 |
|
4-pin connector-drive active LED |
CN5 |
|
USER CONFIGURABLE SETTINGS | |||
|
Function |
Location |
Setting | |
| » |
Hard Drive Interrupt is IRQ14 (hard wired) |
JP1 |
pins 2 & 3 closed |
|
Hard Drive Interrupt is IRQ15 |
JP1 |
pins 1 & 2 closed | |
| » |
INDEX signal is used directly (5276 only) |
JP2 |
open |
|
INDEX signal is selected by SYNC signal (5276 only) |
JP2 |
closed | |
| » |
Floppy drive port address is 3F0-3F7h (5276 only) |
JP3 |
closed |
|
Floppy drive port address is 370-377h (5276 only) |
JP3 |
open | |
| » |
Factory configured - do not alter |
JP4 |
open |
| » |
Factory configured - do not alter |
JP5 |
open |
| » |
11 bit ECC burst length |
JP6 |
closed |
|
5 bit ECC burst length |
JP6 |
open | |
| » |
Factory configured - do not alter |
JP7 |
open |
| » |
LED is lit only during access |
JP8 |
open |
|
LED always lit once unit is selected |
JP8 |
closed | |
| » |
BIOS enabled |
JP9 |
closed |
|
BIOS disabled |
JP9 |
open | |
| » |
Hard drive port address is 1F0-1F7h |
JP10 |
pins 1 & 2 closed |
|
Hard drive port address is 170-177h |
JP10 |
pins 2 & 3 closed | |
| » |
BIOS address is C800h |
JP11 |
pins 1 & 2 closed |
|
BIOS address is D800h |
JP11 |
pins 2 & 3 closed | |