L20E Hard Disk/Floppy Controller Settings and Configuration

Data bus:	32-bit, VL-bus
Size:	Three/quarter-length, full-height card
Hard drive supported:	Two IDE (AT) interface drives
Floppy drives supported:	Two 360KB, 720KB, 1.2MB or 1.44MB drives

CONNECTIONS
Function	Location
40-pin IDE (AT) interface connector - port 1	CN1
4-pin connector - drive active LED	CN2
VESA-feature connector	CN3
10-pin serial port 1	CN4
10-pin serial port 2	CN5
4-pin connector - drive active LED	J5
15-pin analog video port	J8
25-pin parallel port	J21

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	Factory configured - do not alter	JP1	N/A
»	VGA IRQ9 enabled	JP2	Closed
	VGA IRQ9 disabled	JP2	Open
»	Floppy drive enabled	J14	Pins 1 & 2 closed
	Floppy drive disabled	J14	Pins 2 & 3 closed
»	Factory configured - do not alter	J16	Pins 1 & 2 closed
»	Parallel port uses IRQ7	J17	Pins 2 & 3 closed
	Parallel port uses IRQ5	J17	Pins 1 & 2 closed
»	Video port enabled	J22	Pins 1 & 2 closed
	Video port disabled	J22	Pins 2 & 3 closed

UARTS
UART 1		UART 2	J9	J10	J11
»	Enabled	Enabled	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
	Enabled	Disabled	Pins 1 & 2 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
	Controls Port 2	Controls Port 1	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 1 & 2 closed
	Disabled	Controls Port 1	Pins 2 & 3 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
	Disabled	Enabled	Pins 1 & 2 closed	Pins 1 & 2 closed	Pins 2 & 3 closed
	Controls Port 2	Disabled	Pins 2 & 3 closed	Pins 2 & 3 closed	Pins 1 & 2 closed
	Disabled	Disabled	N/A	Pins 2 & 3 closed	Pins 2 & 3 closed

SERIAL PORTS 1 & 2 CONFIGURATIONS
Port 1		Port 2	J19	J20
»	COM1	COM2	Pins 1 & 2 closed	Pins 2 & 3 closed
	COM1	COM4	Pins 1 & 2 closed	Pins 1 & 2 closed
	COM2	COM3	Pins 2 & 3 closed	Pins 1 & 2 closed
	COM3	COM4	Pins 2 & 3 closed	Pins 2 & 3 closed

PARALLEL PORT CONFIGURATION
LPT		J12	J13
»	LPT1	Pins 1 & 2 closed	Pins 2 & 3 closed
	LPT2	Pins 1 & 2 closed	Pins 1 & 2 closed
	LPT3	Pins 2 & 3 closed	Pins 1 & 2 closed
	Disabled	Pins 2 & 3 closed	Pins 2 & 3 closed

HARD DRIVE
Setting		J15	J18
»	HDD enabled	Closed	Closed
	HDD disabled	Open	Open