Maximum On-board Memory	8KB
Data Bus	External
Card Size	3.5 in. form factor
Hard Drives supported	Two ST-506/412(MFM) drives on OMTI 3520 Two ST-506/412(2,7 RLL) drives on OMTI 3527
Floppy drives supported	None

CONNECTIONS
Function	Location	Function	Location
50-pin SCSI connector - external	J1	20-pin data cable connector - drive 1	J3
34-pin cable connector - hard drive	J2	20-pin data cable connector - drive 2	J4
Note: J1 is the interface between the host computer and the OMTI 3520/3527. See Miscellaneous Technical Note.

USER CONFIGURABLE SETTINGS
Function		Label	Position
»	SCSI parity check enabled	W4	Closed
	SCSI parity check disabled	W4	Open
»	Factory configured - do not alter	W5	Unidentified
»	Factory configured - do not alter	W6	Unidentified
»	Factory configured - do not alter	W7	Unidentified
»	Factory configured - do not alter	W8	Unidentified
»	Factory configured - do not alter	W9	Unidentified
»	Factory configured - do not alter	W10	Unidentified
»	Factory configured - do not alter	W11	Unidentified
»	Factory configured - do not alter	W12	Unidentified
»	Factory configured - do not alter	W13	Unidentified
»	Termination power from board	W14	Pins 1 & 2 closed
	Termination power from SCSI bus	W14	Pins 2 & 3 closed
»	Factory configured - do not alter	W15	Unidentified

SCSI ID SELECTION
Setting		W1	W2	W3
»	0	Open	Open	Open
	1	Closed	Open	Open
	2	Open	Closed	Open
	3	Closed	Closed	Open
	4	Open	Open	Closed
	5	Closed	Open	Closed
	6	Open	Closed	Closed
	7	Closed	Closed	Closed

MISCELLANEOUS TECHNICAL NOTE

Note: The OMTI 3520 and OMTI 3527 controllers are connected to the host system via the SCSI bus (connector J1). Up to seven SCSI devices may be connected to this bus and an OMTI 3520/3527 controller is considered to be one of these devices. Multiple controllers may be attached, with each controller assigned a unique SCSI ID using jumpers W1, W2 and W3.