SCIENTIFIC MICRO SYSTEMS, INC.

OMTI 5100I, OMTI 5200I, OMTI 5400I

Data bus:

50-pin SCSI interface

Size:

5.25" FF

Hard drive supported:

Up to two IDE(AT) drives

Floppy drives supported:

Two 360KB, 720KB, 1.2MB, 1.44Mb or 8" drives (except 5100I)

   

CONNECTIONS

Function

Location

50-pin SCSI interface

J1

40-pin IDE(AT) connector

J2

34-pin floppy drive connector (not in 5100I)

J7

50-pin tape drive connector (5400I only)

J8

DC power connector

J10

SCSI ID

SCSI ID

ID/0

ID/1

ID/2

ID/3

ID/4

ID/5

ID/6

ID/7

»

0

closed

open

open

open

open

open

open

open

 

1

open

closed

open

open

open

open

open

open

 

2

open

open

closed

open

open

open

open

open

 

3

open

open

open

closed

open

open

open

open

 

4

open

open

open

open

closed

open

open

open

 

5

open

open

open

open

open

closed

open

open

 

6

open

open

open

open

open

open

closed

open

 

7

open

open

open

open

open

open

open

closed

USER CONFIGURABLE SETTINGS

Function

Location

Setting

»

SCSI parity enabled

W1/pins 1 & 2

closed

 

SCSI parity disabled

W1/pins 2 & 3

closed

»

Tape drive parity enabled (5400I)

W2/pins 1 & 2

closed

 

Tape drive parity disabled

W2/pins 2 & 3

closed

 

Motor on signal enabled by command (5200I & 5400I)

W14

open

 

Motor on signal always enabled

W14

closed

 

Ready signal for FDC enabled

W15

closed

 

Ready signal for FDC disabled

W15

open

IDE SECTOR CONFIGURATION

Bytes/Sector

W3

W4

»

512

open

open

 

256

closed

open

 

512

open

closed

 

1024

closed

closed

Note: The two settings of 512 bytes/sector have different number of sector/track.

LUN 0 DISK TYPE CONFIGURATION

Drive Type

Model #

W5

IDE

5100I

open or closed

IDE

5200I, 5400I

open

Flexible

5200I, 5400I

closed

LUN 1 DISK TYPE CONFIGURATION

Drive Type

Model #

W6

IDE

5100I

open or closed

IDE

5200I, 5400I

open

Flexible

5200I, 5400I

closed

LUN 2 DISK TYPE CONFIGURATION

Drive Type

Model #

W7

IDE

5100I

open or closed

IDE

5200I, 5400I

open

Flexible

5200I, 5400I

closed

LUN 3 DISK TYPE CONFIGURATION

Drive Type

Model #

W8

IDE

5100I

open or closed

IDE

5200I,

open

Flexible

5200I, 5400I

closed

Tape

5400I

open

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