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NCL 5425

NCL AMERICA

NCL 5425

Data bus: 16-bit, ISA

Size: Half-length, full-height card

Hard drives supported: Two ST506/412MFM drives

Floppy drives supported: NCL 5425:Two 360 KB, 720 KB, 1.2 MB or 1.44 MB drives

Maximum heads/cyl.: 16 heads and 2048 cylinders

CONNECTIONS

Purpose

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

34-pin data cable connector-floppy drive

CN4

4-pin connector-drive active LED

CN5

NCL AMERICA

NCL 5425

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USER CONFIGURABLE SETTINGS

Function

Location

Setting

Hard drive address is 1F0-1F7h

JP0

open

 

Hard drive address is 170-177h

JP0

closed

Floppy drive port address is 3F2-3F7h

JP1

open

 

Floppy drive port address is 372-377h

JP1

closed

LED always "on"

JP2

open

 

LED "on" only when drive is select

JP2

closed

Factory configured - do not alter

JP3

N/A

Factory configured - do not alter

JP4

open

DRIVE TYPES SUPPORTED BY THE NCL542X FIRMWARE

TYPE

HEADS

CYLS.

W.P.C.

L.Z.

1

4

306

128

305

2

4

615

300

615

3

6

615

300

615

4

8

940

512

940

5

6

940

512

940

6

4

615

N/A

615

7

8

462

256

511

8

5

733

N/A

733

9

15

900

N/A

901

10

3

820

N/A

820

11

5

855

N/A

855

12

7

855

N/A

855

13

8

306

128

319

14

7

733

N/A

733

15

Reserved

-

-

-