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  | |