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OMTI 510, OMTI 510-HA-3, OMTI 510-HA-7

SCIENTIFIC MICRO SYSTEMS

OMTI 510, OMTI 510-HA-3, OMTI 510-HA-7

OMTI 512, OMTI 512-HA-3, OMTI 512-HA-7

Data bus:

8-bit, ISA

Size:

Half-length, half-height card

Hard drive supported:

Up to seven SCSI devices

Floppy drives supported:

None

CONNECTIONS

Function

Location

50-pin SCSI connector - internal

J1

37-pin SCSI connector - external (OMTI512 only)

J2

USER CONFIGURABLE SETTINGS

Function

Location

Setting

SCSI Busy signal enabled

W1

pins 2 & 3 closed

 

SCSI Busy signal disabled

W1

pins 1 & 2 closed

SCSI Message signal enabled

W2

pins 2 & 3 closed

 

SCSI Message signal disabled

W2

pins 1 & 2 closed

SCSI parity check enabled

W4

pins 2 & 3 closed

 

SCSI parity check disabled

W4

pins 1 & 2 closed

USER CONFIGURABLE SETTINGS

Function

Location

Setting

BIOS enabled

W7

open

 

BIOS disabled

W7

closed

BIOS address is C800h

W8

open

 

BIOS address is CA00h

W8

closed

28-pin EPROM type enabled

W9 and W10

pins 1 & 2 closed

 

24-pin EPROM type enabled

W9 and W10

pins 2 & 3 closed*

SCSI Receive parity disabled

W11

pins 1 & 2 closed

 

SCSI Receive parity enabled

W11

pins 2 & 3 closed

Note: Cut the foil trace between pins 1 & 2 on Jumpers W9 and W10 if closing pins 2 & 3

I/O PORT ADDRESS

Address

Jumper W6

Jumper W5

320h

open

open

 

324h

open

closed

 

328h

closed

open

 

32Ch

closed

closed

MISCELLANEOUS TECHNICAL NOTES

Jumper W3 is not used and should remain factory configured with pins 1 & 2 in the closed position.

Do not disable SCSI Busy and Message signals (Jumpers W1 and W2)