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# RANCHO TECHNOLOGY, INC.
RT1000B
+------------------------------------------------------------+
|------------------------------------------------------------|
| Data bus: | 8-bit, ISA |
|-------------------+----------------------------------------|
| Size: | Half-length, full-height card |
|-------------------+----------------------------------------|
| Hard drive | Up to seven SCSI devices |
| supported: | |
|-------------------+----------------------------------------|
| Floppy drives | Two 360KB, 720KB, 1.2MB or 1.44MB |
| supported: | drives |
+------------------------------------------------------------+
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|------------------------------------------+-----------------|
| 50-pin SCSI connector - external | J5 |
|------------------------------------------+-----------------|
| 50-pin SCSI connector - internal | J10 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|------------------------------------+----------+------------|
| Floptical drive is Drive A: | J4 | closed |
|------------------------------------+----------+------------|
| Other drive is Drive A: | J4 | open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| I/O ADDRESS |
|------------------------------------------------------------|
| Base Address | J1 | J2 | J3 |
|-------------------+-------------+-------------+------------|
| ยป | DC00h | closed | open | open |
|-----+-------------+-------------+-------------+------------|
| | C800h | open | open | closed |
|-----+-------------+-------------+-------------+------------|
| | CC00h | closed | open | closed |
|-----+-------------+-------------+-------------+------------|
| | D000h | open | closed | closed |
|-----+-------------+-------------+-------------+------------|
| | D400h | closed | closed | closed |
|-----+-------------+-------------+-------------+------------|
| | D800h | open | open | open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| I/O ADDRESS |
|------------------------------------------------------------|
| Base Address | J1 | J2 | J3 |
|----------------+--------------+--------------+-------------|
| E000h | open | closed | open |
|----------------+--------------+--------------+-------------|
| E400h | closed | closed | open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| INTERRUPT SELECT |
|------------------------------------------------------------|
| IRQ | J6 | J7 | J8 | J9 |
|----------+------------+------------+-----------+-----------|
| IRQ3 | closed | open | open | open |
|----------+------------+------------+-----------+-----------|
| IRQ4 | open | closed | open | open |
|----------+------------+------------+-----------+-----------|
| IRQ5 | open | open | closed | open |
|----------+------------+------------+-----------+-----------|
| IRQ7 | open | open | open | closed |
+------------------------------------------------------------+