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# RANCHO TECHNOLOGY, INC.
RT1000A
Data bus: 8-bit, ISA
Size: Half-length, full-height card
Hard drives supported: Up to seven SCSI devices
Floppy drives supported: Two 360KB, 720KB,1.2MB, or 1.44MB
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|------------------------------------------+-----------------|
| 50-pin SCSI connector-external | J1 |
|------------------------------------------+-----------------|
| 50-pin SCSI connector-internal | J2 |
|------------------------------------------+-----------------|
| 34-pin data cable connector-floppy drive | J3 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| BIOS ADDRESS |
|------------------------------------------------------------|
| Address | X4 | X5 | X6 |
|---------------+--------------+--------------+--------------|
| D4000h | closed | closed | open |
|---------------+--------------+--------------+--------------|
| CC000h | open | closed | open |
|---------------+--------------+--------------+--------------|
| D0000h | closed | open | open |
|---------------+--------------+--------------+--------------|
| C8000h | open | open | open |
|---------------+--------------+--------------+--------------|
| E4000h | closed | closed | closed |
|---------------+--------------+--------------+--------------|
| DC000h | open | closed | closed |
|---------------+--------------+--------------+--------------|
| E0000h | closed | open | closed |
|---------------+--------------+--------------+--------------|
| D8000h | open | open | closed |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|---------------------------------------+----------+---------|
| » | Floppy drive write | X1 | open |
| | precompensation is 187ns | | |
|---+-----------------------------------+----------+---------|
| | Floppy drive write | X1 | closed |
| | precompensation is 125ns | | |
|---+-----------------------------------+----------+---------|
| » | Single-speed floppy drive | X2 | open |
| | supported | | |
|---+-----------------------------------+----------+---------|
| | Dual speed floppy drive supported | X2 | closed |
|---+-----------------------------------+----------+---------|
| » | Floppy drive port address is 377h | X3 | open |
|---+-----------------------------------+----------+---------|
| | Floppy drive port address is 3F7h | X3 | closed |
|---+-----------------------------------+----------+---------|
| » | Remote terminal power not | X7 | open |
| | supported | | |
|---+-----------------------------------+----------+---------|
| | Supports remote terminal power | X7 | closed |
|---+-----------------------------------+----------+---------|
| » | Zero wait state enabled | X12 | closed |
|---+-----------------------------------+----------+---------|
| | Zero wait state disabled | X12 | open |
|---+-----------------------------------+----------+---------|
| » | Floppy drive enabled | X13 | closed |
|---+-----------------------------------+----------+---------|
| | Floppy drive disabled | X13 | open |
|---+-----------------------------------+----------+---------|
| » | Non applicable to this card. For | X14 | open |
| | MCA card only | | |
|---+-----------------------------------+----------+---------|
| » | Supports drives other than | X15 | open |
| | Syquest | | |
|---+-----------------------------------+----------+---------|
| | Supports Syquest and some | X15 | closed |
| | removable media drives | | |
|---+-----------------------------------+----------+---------|
| » | SCSI DOS hard drive boot enabled. | X16 | open |
|---+-----------------------------------+----------+---------|
| | SCSI DOS hard drive boot | X16 | closed |
| | disabled. | | |
|---+-----------------------------------+----------+---------|
| » | Factory configured - do not alter | X17 | open |
|---+-----------------------------------+----------+---------|
| » | Bus reset delay is 30 seconds | X18 | closed |
|---+-----------------------------------+----------+---------|
| | Bus reset delay is 5 seconds | X18 | open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT REQUEST |
|------------------------------------------------------------|
| IRQ | X8 | X9 | X10 | X11 |
|----------+------------+------------+-----------+-----------|
| IRQ7 | closed | open | open | open |
|----------+------------+------------+-----------+-----------|
| IRQ5 | open | closed | open | open |
|----------+------------+------------+-----------+-----------|
| IRQ4 | open | open | closed | open |
|----------+------------+------------+-----------+-----------|
| IRQ3 | open | open | open | closed |
+------------------------------------------------------------+