ACB-2072 Hard Disk/Floppy Controller Settings and Configuration

Data bus:	8-bit, ISA
Size:	Half-length, full-height card
Hard drives supported:	Two RLL ST506 drives
Floppy drives supported:	None

CONNECTIONS
Function	Location
34-pin control cable connector-hard drive	J1
20-pin data cable connector-drive 0	J2
20-pin data cable connector-drive 1	J3
4-pin connector-DC power	J4

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	BIOS enabled	BD	open
	BIOS disabled	BD	closed
»	I/O port address is 320h	324	open
	I/O port address is 324h	324	closed
»	Drive 0 is defined with Jumpers MN & OP	AB	open
	Drive 0 is a Syquest drive	AB	closed
»	Drive 1 is defined with Jumpers QR & ST	CD	open
	Drive 1 is a Syquest drive	CD	closed
»	Factory configured - do not alter	EF	open
»	Factory configured - do not alter	GH	open
»	Factory configured - do not alter	IJ	open
»	Normal Operation	KL	open
	Self-diagnostics enabled	KL	closed

BIOS ADDRESS
Select		Jumper WX	Jumper UV
»	C800h	open	open
	CA00h	open	closed
	F800h	closed	open
	CC00h	closed	closed

BIOS DRIVE TYPE TABLE
Table #	Hds	Cyls	RLL Cap.	Jumper MN Drive 0 Jumper QR- Drive 1	Jumper OP- Drive 0 Jumper ST- Drive 1
0	4	612	32.74MB	closed	closed
1	2	612	16.29MB	closed	open
2	5	981	65.29MB	open	closed
3	4	615	32.58MB	open	open