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HED-821A

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