CONNECTIONS
DB-25 SCSI connector-external	J1
50-pin SCSI connector-internal	J2
4-pin connector-drive active LED	J3
Optional 5-pin connector-DC power	J4
34-pin control cable connector-floppy drive	J5
34-pin control cable connector-floppy drive	J6

USER CONFIGURABLE SETTINGS
Function		Location	Setting
»	Primary floppy drive enabled (TMC-1680 only)	W2/jumper 1*	closed
	Second floppy drive enabled (TMC-1680 only)	W2/jumper 2*	closed
»	Hard drive enabled (TMC-1680 only)	W2/jumper 3	closed
	Hard drive disabled (TMC-1680 only)	W2/jumper 3	open
»	BIOS enabled	W2/jumper 4	closed
	BIOS disabled	W2/jumper 4	open
»	BIOS and RAM enabled	W2/jumper 5	closed
	BIOS and RAM disabled	W2/jumper 5	open
»	Termination Power enabled	W4	closed
	Termination Power disabled	W4	open
Note:*These jumpers are mutually exclusive

INTERRUPT REQUEST
IRQ	W1/jumper 1	W1/jumper 2	W1/jumper 3
IRQ3	open	open	open
IRQ5	closed	open	open
IRQ10	open	closed	open
IRQ11	closed	closed	open
IRQ12	open	open	closed
IRQ14	closed	open	closed
IRQ15	open	closed	closed
Disabled	closed	closed	closed

I/O PORT ADDRESS
Address		W1/jumper 4	W1/jumper 5
»	0140-014Fh	open	open
	0150-015Fh	closed	open
	0160-016Fh	open	closed
	0170-017Fh	closed	closed

BIOS ADDRESS
Address		W1/jumper 6	W1/jumper 7
»	CA000-CBFFFh	closed	open
	C8000-C9FFFh	open	open
	CE000-CFFFFh	open	closed
	DE000-DFFFFh	closed	closed