DTC51-2G Hard Disk/Floppy Controller Settings and Configuration

Data bus:	8-bit, ISA
Size:	Half-length, full-height card
Hard drive supported:	Up to seven SCSI devices
Floppy drives supported:	Two 360KB, 720KB, 1.2MB, or 1.44MB drives

CONNECTIONS
Function	Location
50-pin SCSI connector - internal	J1
26-pin SCSI connector - external	J2

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	SCSI retries enabled	SW1/jumper 2	open
	SCSI retries disabled	SW1/jumper 2	closed
»	SCSI parity check enabled	SW1/jumper 3	closed
	SCSI parity check disabled	SW1/jumper 3	open
»	DMA Channel 1 enabled	SW1/jumper 5	closed
	DMA Channel 3 enabled	SW1/jumper 5	open
»	DMA enabled	SW1/jumper 6	open
	DMA disabled	SW1/jumper 6	closed

I/O PORT ADDRESS - SW1
Address		SW1/jumper 7	SW1/jumper 8
	320h	closed	closed
»	330h	closed	open
	340h	open	closed

BIOS ADDRESS - SW2
Address		SW2/jumper 1	SW2/jumper 2	SW2/jumper 3	SW2/jumper 4
	C000h	closed	closed	closed	closed
	C400h	closed	closed	closed	open
	C800h	closed	closed	open	closed
	CC00h	closed	closed	open	open
	D000h	closed	open	closed	closed
	D400h	closed	open	closed	open
»	D800h	closed	open	open	closed
	DC00h	closed	open	open	open
	E000h	open	closed	closed	closed
	E400h	open	closed	closed	open
	E800h	open	closed	open	closed
	EC00h	open	closed	open	open
	F000h	open	open	closed	closed
	F400h	open	open	closed	open
	F800h	open	open	open	closed
	FC00h	open	open	open	open

MISCELLANEOUS TECHNICAL NOTES

Jumpers SW1/jumper 1, SW1/jumper 4, W2, and W2 are factory configured as follows: SW1/jumper 1 - open, SW1/jumper 4 - closed, Jumper W1 - closed, Jumper W2 - pins 2 & 3 closed. Do not alter these settings.