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NCL 5275, NCL 5276

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

CONNECTIONS

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