HEDAKA

HED-821A

Data Bus

8/16 bit ISA

Card Size

Full height, three-quarters length

Hard Drives Supported

Two ST506/412(MFM) devices

Floppy Drives Supported

Two 360KB, 720KB, 1.2MB, or 1.44MB drives

CONNECTIONS

Function

Label

Function

Label

20-pin data cable connector - drive 0

J1

34-pin control cable connector - hard drive

U4

20-pin data cable connector - drive 1

J2

34-pin hard drive control cable

U13

4-pin drive active LED

J3

   

USER CONFIGURABLE SETTINGS

Setting

Label

Position

»

Card uses primary hard drive address

W2

Open

 

Card uses secondary hard drive address

W2

Closed

»

Card uses primary floppy address

W3

Open

 

Card uses secondary floppy address

W3

Closed

FLOPPY CONTROLLER CONFIGURATION

Setting

W1

W4

»

Enabled

Closed

Closed

 

Disabled

Open

Open

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