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# RANCHO TECHNOLOGY, INC.
RTSDA-SF, RTSDA-BP
+------------------------------------------------------------+
|------------------------------------------------------------|
| Data bus: | None |
|---------------+--------------------------------------------|
| Size: | 3.25 in. form factor |
|---------------+--------------------------------------------|
| Hard drive | SCSI devices, single-ended to differential |
| supported: | converter |
|---------------+--------------------------------------------|
| Floppy drives | None |
| supported: | |
+------------------------------------------------------------+
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|-----------------------------------------------+------------|
| 50-pin single-ended SCSI connector - internal | J1 |
|-----------------------------------------------+------------|
| 50-pin differential SCSI connector - internal | J2 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| TERMINATION POWER SETTINGS |
|------------------------------------------------------------|
| |Single-side|Differential-side| |
|--------------+-----------+-----------------+---------------|
| | Function | W1 | W3 | W2 | W4 |
|-+------------+-----------+-----------------+-------+-------|
|ยป|TERMPWR |open |closed |open |closed |
| |supplied to | | | | |
| |converter | | | | |
| | | | | | |
| |terminators | | | | |
| |internally | | | | |
|-+------------+-----------+-----------------+-------+-------|
| |TERMPWR |closed |open |closed |open |
| |supplied to | | | | |
| |converter | | | | |
| | | | | | |
| |terminators | | | | |
| |externally | | | | |
| | | | | | |
| |(with | | | | |
| |internal | | | | |
| |power | | | | |
| |protection) | | | | |
|-+------------+-----------+-----------------+-------+-------|
| |TERMPWR |closed |closed |closed |closed |
| |supplied to | | | | |
| |both | | | | |
| |converter | | | | |
| | | | | | |
| |and remote | | | | |
| |terminators | | | | |
| |internally | | | | |
| | | | | | |
| |and | | | | |
| |externally | | | | |
|------------------------------------------------------------|
|Note: When W1 is closed, TERMPWR is supplied to a remote |
|terminator on the single-ended side. |
| |
|When W2 is closed, TERMPWR is supplied to a remote |
|terminator on the differential side. |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS NOTES |
|------------------------------------------------------------|
| The difference between the two models is that RTSDA-BP |
| comes with its own power supply. |
+------------------------------------------------------------+