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ULTRA15C

ULTRASTOR CORPORATION

ULTRA15C

Data bus: 16-bit, PC/AT

Size: Half-length, full-height card

Hard drives supported: Two IDE (AT) Interface drives

Floppy drives supported: Three 360KB, 720KB, 1.2MB, or 1.44MB

CONNECTIONS

Function

Location

34-pin control cable connector-floppy drive

J1

4-pin connector-drive active LED

J6

40-pin IDE (AT) Interface control cable connector

JP23

USER CONFIGURABLE SETTINGS

Function

Location

Setting

 

Supports a third floppy on single twisted cable (DS4)

JP11/jumper 1

closed

 

Supports a third floppy on double twisted cable (DS2)

JP11/jumper 1

open

Hard drive port address is 1F0-1F7h

JP11/jumper 2

open

 

Hard drive port address is 170-177h

JP11/jumper 2

closed

Floppy drive enabled

JP11/jumper 3

closed

 

Floppy drive disabled

JP11/jumper 3

open

Floppy drive port address is 3F0-3F7h

JP11/jumper 4

open

 

Floppy drive port address is 370-377h

JP11/jumper 4

closed

Single speed floppy drive supported

JP11/jumper 5

open

 

Dual speed floppy drive supported

JP11/jumper 5

closed

Floppy drive precomp. is scaled by data rate:

500KHz=125ns, 300KHz=208ns, 250KHz=250ns

JP11/jumper 6

open

 

Floppy drive precomp. is 125ns

JP11/jumper 6

closed

Chassis ground connection

JP16

open

Hard drive interrupt is IRQ14

JP21

pins 2 & 3 closed

 

Hard drive interrupt is IRQ15

JP21

pins 1 & 2 closed

BIOS ADDRESS

Address

JP10/jumper 1

JP10/jumper 2

JP10/jumper 3

 

Disabled

open

open

open

C800h

open

open

closed

 

CC00h

open

closed

open

 

D000h

open

closed

closed

 

D400h

closed

open

open

 

D800h

closed

open

closed

 

DC00h

closed

closed

open

 

Disabled

closed

closed

closed

MISCELLANEOUS TECHNICAL NOTES

Both SIMM's must be of the same size (256K, 1MB, or 4MB) and must be rated at 100ns or less. Reserved jumper settings are as follows: JP4/jumpers 1-4 are reserved and must be left "open". JP24 is reserved and must be left "open". JP27 is reserved and must remain as is. JP22 and JP26 are factory reserved and the defaults are as follows:

JP22/jumpers 1 & 2, 5 & 6, and 10 & 11 should be "open", jumpers 3 & 4, 7 & 9 should be "closed." JP26/jumpers 2 through `6 should be left "open", jumpers 1, 7 through 9 should be left "closed"