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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