NCL AMERICA

NCL 5525-50, NCL 5526-50

Data bus: 16-bit, ISA

Size: Half-length, full-height card

Hard drives supported: Two ST506/412 MFM drives

Floppy drives supported: NCL 5525-50:Two 360KB, 720KB, 1.2MB, or 1.44MB

NCL 5526-50: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 (NCL 5355 only)

CN4

4-pin connector-drive active LED

CN5

USER CONFIGURABLE SETTINGS

Function

Location

Setting

»

Hard drive port address is 1F0-1F7h

JP0

open

 

Hard drive port address is 170-177h

JP0

closed

»

Factory configured - do not alter

JP1

open

»

LED always lit once unit is selected

JP2

open

 

LED is lit only during access

JP2

closed

»

Factory configured - do not alter

JP3

open

»

Floppy drive port address is 3F0-3F7h

JP4

closed

 

Floppy drive port address is 370-377h

JP4

open

»

Factory configured - do not alter

JP5

open