Data bus:	16-bit ISA
Size:	Full-length, full-height card
Hard drives supported:	PM3011/50:Two ST506/412 MFM drives PM3011/60:Two ST506/412 RLL drives
Floppy drives supported:	Optional on daughtercard
Sector Interleave:	Automatic

CONNECTIONS
Function	Location
20-pin data cable connector-drive 1	J3
20-pin data cable connector-drive 0	J4
34-pin control cable connector-hard drive	J5
4-pin connector-drive active LED	J6
Floppy Drive daughter board connector	J7
Memory expansion board cable connector	J8
Floppy Drive daughter board connector	J10

HARD DRIVE INTERRUPT REQUEST
IRQ		Y9	Y10	Y11
»	IRQ14	closed	open	open
	IRQ5	open	open	closed
	IRQ7	open	closed	open

SCSI INTERRUPT REQUEST
IRQ		Jumper Y12	Jumper Y13
»	Disabled	open	open
	5	closed	open
	7	open	closed

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	Not used	Y1, Y2, Y3	open
»	Floppy drive port address 3F0-3F7h	Y5	open
	Floppy drive port address 370-377h	Y5	closed
»	SCSI address disabled	Y6	open
	SCSI address enabled	Y6	closed
»	BIOS disabled	Y7	open
	BIOS enabled	Y7	closed
»	Factory configured - do not alter	Y8	open
»	Hard drive port address 1F0-1F7h	Y18	open
	Hard drive port address 170-177h	Y18	closed

SCSI DMA CHANNEL
DRQ		Y14	Y15	Y16	Y17
»	Disabled	open	open	open	open
	DRQ1	closed	open	closed	open
	DRQ3	open	closed	open	closed

SCSI I/O ADDRESS
Address	Jumper Y19	Jumper Y20
CB00h	open	open
DB00h	closed	open
EB00h	open	closed
F100h	closed	closed

LED INFORMATION
Function	Location
Disk controller busy	LED-1
PC/AT transfer to hard disk controller	LED-2
PC/AT transfer from hard disk controller	LED-3
Cache hit	LED-4
Controller look-ahead active	LED-5
Hard disk transfer to controller	LED-6
Hard disk transfer from controller	LED-7
PC/AT reset to controller	LED-8
Hard disk interrupt to PC/AT	LED-9
DRQ	LED-10