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# 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
(IMG) IMG 1
+------------------------------------------------------------+
| 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 | JP23 |
| connector | |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|---------------------------------+-------------+------------|
| | Supports a third floppy on | JP11/jumper | closed |
| | single twisted cable (DS4) | 1 | |
|---+-----------------------------+-------------+------------|
| | Supports a third floppy on | JP11/jumper | open |
| | double twisted cable (DS2) | 1 | |
|---+-----------------------------+-------------+------------|
| » | Hard drive port address is | JP11/jumper | open |
| | 1F0-1F7h | 2 | |
|---+-----------------------------+-------------+------------|
| | Hard drive port address is | JP11/jumper | closed |
| | 170-177h | 2 | |
|---+-----------------------------+-------------+------------|
| » | Floppy drive enabled | JP11/jumper | closed |
| | | 3 | |
|---+-----------------------------+-------------+------------|
| | Floppy drive disabled | JP11/jumper | open |
| | | 3 | |
|---+-----------------------------+-------------+------------|
| » | Floppy drive port address | JP11/jumper | open |
| | is 3F0-3F7h | 4 | |
|---+-----------------------------+-------------+------------|
| | Floppy drive port address | JP11/jumper | closed |
| | is 370-377h | 4 | |
|---+-----------------------------+-------------+------------|
| » | Single speed floppy drive | JP11/jumper | open |
| | supported | 5 | |
|---+-----------------------------+-------------+------------|
| | Dual speed floppy drive | JP11/jumper | closed |
| | supported | 5 | |
|---+-----------------------------+-------------+------------|
| » | Floppy drive precomp. is | JP11/jumper | open |
| | scaled by data rate: | 6 | |
| | | | |
| | 500KHz=125ns, 300KHz=208ns, | | |
| | 250KHz=250ns | | |
|---+-----------------------------+-------------+------------|
| | Floppy drive precomp. is | JP11/jumper | closed |
| | 125ns | 6 | |
|---+-----------------------------+-------------+------------|
| » | Chassis ground connection | JP16 | open |
|---+-----------------------------+-------------+------------|
| » | Hard drive interrupt is | JP21 | pins 2 & 3 |
| | IRQ14 | | closed |
|---+-----------------------------+-------------+------------|
| | Hard drive interrupt is | JP21 | pins 1 & 2 |
| | IRQ15 | | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS ADDRESS |
|------------------------------------------------------------|
| Address | JP10/jumper 1 | JP10/jumper | JP10/jumper |
| | | 2 | 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" |
+------------------------------------------------------------+