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ULTRA 14N

ULTRASTOR CORPORATION

ULTRA 14N

Data bus:

16-bit, ISA

Size:

Three/quarter-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

34-pin control cable connector - floppy drive

J1

50-pin SCSI connector - internal

J2

50-pin SCSI connector - external

J3

4-pin connector - drive active LED

JP2

USER CONFIGURABLE SETTINGS

Function

Location

Setting

128KB EPROM enabled

JP1

pins 2 & 3 closed

 

256KB EPROM enabled

JP1

pins 1 & 2 closed

Card is ground to chassis

JP3

closed

 

Not grounded

JP3

open

BIOS supports up to 2 SCSI hard drives

JP5/jumper E

open

 

BIOS supports up to 7 SCSI hard drives

JP5/jumper E

closed

Ultra 14N synchronous negotiation enabled

JP5/jumper F

open

 

Target initiated synchronous negotiation enabled

JP5/jumper F

closed

Floppy controller enabled

JP7

closed

 

Floppy controller disabled

JP7

open

USER CONFIGURABLE SETTINGS

Function

Location

Setting

Double twisted cable selected for floppy connector

JP11/jumper A

open

 

Single twisted cable selected for floppy connector

JP11/jumper A

closed

Floppy drive base address = 3F0h

JP11/jumper B

open

 

Floppy drive base address = 370h

JP11/jumper B

closed

AT type floppy drive selected

JP11/jumper C

open

 

PS/2 type floppy drive selected

JP11/jumper C

closed

Floppy drive precompensation is always 125ns

JP11/jumper D

open

 

Floppy drive precompensation adjusts to data rates.

JP11/jumper D

closed

BIOS supports removable drive

JP21/jumper A

open

 

External drive supports removable drive

JP21/jumper A

closed

Synchronous negotiation for removable drives starts at 10MB/s

JP21/jumper B

open

 

Synchronous negotiation for removable drives starts at 5MB/s

JP21/jumper B

closed

Factory configured - do not alter

JP21/jumper C

open

HARD DRIVE HEAD MAPPING

Setting

JP5/Jumper A

JP5/Jumper B

64 heads/32 sectors

closed

open

 

16 heads/63 sectors

open

open

 

64 heads/63 sectors

open

closed

 

64 heads/32 sectors

closed

closed

INTERRUPT SELECT

IRQ

JP5/Jumper C

JP5/Jumper D

IRQ14

open

closed

 

IRQ10

open

open

 

IRQ11

closed

open

 

IRQ15

closed

closed

BIOS ADDRESS

Address

JP10/Jumper A

JP10/Jumper B

JP10/Jumper C

C8000h

open

closed

open

 

CC000h

closed

closed

open

 

D0000h

open

open

closed

 

D4000h

closed

open

closed

 

D8000h

open

closed

closed

 

DC000h

closed

closed

closed

 

Disabled

open

open

open

I/O ADDRESS

Address

JP20/Jumper A

JP20/Jumper B

240h

closed

open

 

140h

open

open

 

220h

open

closed

 

340h

closed

closed