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# EMULEX CORPORATION
MD25A, MD26A
+------------------------------------------------------------+
+------------------------------------------------------------+
Data bus: None (SCSI to ESDI interface)
Size: Drive card
Hard drives supported: SCSI to four RLL ESDI drives
Floppy drives supported: None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|------------------------------------------------+-----------|
| 34-pin control cable connector-hard drive | J1 |
|------------------------------------------------+-----------|
| 20-pin data cable connector-drive 0 | J2 |
|------------------------------------------------+-----------|
| 20-pin data cable connector-drive 1 | J3 |
|------------------------------------------------+-----------|
| 10-pin connector-user panel (factory use only) | J4 |
|------------------------------------------------+-----------|
| 14-pin connector-test (factory use only) | J5 |
|------------------------------------------------+-----------|
| 50-pin SCSI connector- to host adapter | J6 |
|------------------------------------------------+-----------|
| 4-pin connector-DC power | J7 |
|------------------------------------------------+-----------|
| 20-pin data cable connector-drive 2 | J8 |
|------------------------------------------------+-----------|
| 20-pin data cable connector-drive 3 | J9 |
|------------------------------------------------+-----------|
| 10-pin connector-user panel (factory use only) | J10 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|-----------------------------------+--------------+---------|
| » | Soft error reporting disabled | SW1/switch 4 | on |
|---+-------------------------------+--------------+---------|
| | Soft error reporting enabled | SW1/switch 4 | off |
|---+-------------------------------+--------------+---------|
| » | Sector size set to 512 bytes | SW1/switch 5 | off |
|---+-------------------------------+--------------+---------|
| | Sector size set to 256 bytes | SW1/switch 5 | on |
|---+-------------------------------+--------------+---------|
| » | Spindle motor starts on | SW1/switch 6 | off |
| | power-up | | |
|---+-------------------------------+--------------+---------|
| | Spindle motor starts on | SW1/switch 6 | on |
| | command | | |
|---+-------------------------------+--------------+---------|
| » | SCSI parity check disabled | SW1/switch 7 | off |
|---+-------------------------------+--------------+---------|
| | SCSI parity check enabled | SW1/switch 7 | on |
|---+-------------------------------+--------------+---------|
| | Not used | SW1/switch 8 | N/A |
+------------------------------------------------------------+
+------------------------------------------------------------+
| SCSI ADDRESS |
|------------------------------------------------------------|
| SCSI ID | SW1/switch 1 | SW1/switch 2 | SW1/switch 3 |
|------------+---------------+---------------+---------------|
| | 0 | off | off | off |
|----+-------+---------------+---------------+---------------|
| | 1 | on | off | off |
|----+-------+---------------+---------------+---------------|
| | 2 | off | on | off |
|----+-------+---------------+---------------+---------------|
| | 3 | on | on | off |
|----+-------+---------------+---------------+---------------|
| | 4 | off | off | on |
|----+-------+---------------+---------------+---------------|
| | 5 | on | off | on |
|----+-------+---------------+---------------+---------------|
| | 6 | off | on | on |
|----+-------+---------------+---------------+---------------|
| » | 7 | on | on | on |
+------------------------------------------------------------+