Data Bus	8-bit ISA
Card Size	Three-quarter length, full-height card
Hard Drives supported	Four ST-506/412(MFM) drives
Floppy drives supported	None

CONNECTIONS
Function	Location	Function	Location
34-pin control cable connector	J1	20-pin data cable connector	J4
20-pin data cable connector - drive 0	J2	20-pin data cable connector	J5
20-pin data cable connector - drive 1	J3

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	IRQ 5 enable	JP4/1	Closed
	IRQ 5 disable	JP4/1	Open
»	Factory configured - do not alter	P2	Open
»	Write Protect drive 0 disabled	P3/pins 1 & 2	Open
	Write Protect drive 0 enabled	P3/pins 1 & 2	Closed
»	Write Protect drive 1 disabled	P3/pins 3 & 4	Open
	Write Protect drive 1 enabled	P3/pins 3 & 4	Closed
»	Write Protect drive 2 disabled	P3/pins 5 & 6	Open
	Write Protect drive 2 enabled	P3/pins 5 & 6	Closed
»	Write Protect drive 3 disabled	P3/pins 7 & 8	Open
	Write Protect drive 3 enabled	P3/pins 7 & 8	Closed
»	Factory configured - do not alter (Ext. Stat. Reg. Bit 4)	SW1/1	Off
»	Factory configured - do not alter (Ext. Stat. Reg. Bit 5)	SW1/2	Off
»	Factory configured - do not alter (Ext. Stat. Reg. Bit 6)	SW1/3	Off
»	Factory configured - do not alter (Ext. Stat. Reg. Bit 7)	SW1/4	Off
»	Factory configured - do not alter	SW2/7	Unidentified
»	Factory configured - do not alter	SW2/8	Unidentified

PIN 2 CABLE SELECTION FOR CABLE J1
Setting		P1/1	P1/2	P1/3	P1/4
	Change Cartridge Signal	Open	Open	Open	Closed
	Head Select	Open	Open	Closed	Open
»	Reduced Write Current	Open	Closed	Open	Open
	Disable pin 2 3	Closed	Open	Open	Open
Note: Select the ‘Head Select’ setting if the attached drive is large capacity with more than 8 heads.

DMA CHANNEL SELECTION
Channel		JP4/1	JP4/2
»	DMA 3 disabled	Open	Open
	DMA 3 enabled	Closed	Closed

BASE ADDRESS SELECTION
Setting		SW2/1	SW2/2	SW2/3	SW2/4	SW2/5	SW2/6
»	300h	On	On	On	Off	Off	On