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# ADAPTEC, INC.
AHA-2740T, AHA-2742, AHA-2742T, AHA-2740A,
AHA-2742A, AHA-2740A-TWIN, AHA-2742A-TWIN
+------------------------------------------------------------+
|------------------------------------------------------------|
| Data bus: | 32-bit, EISA |
|-------------------+----------------------------------------|
| 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 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|-------------------------------------------------+----------|
| 4-pin connector - drive active LED | J1 |
|-------------------------------------------------+----------|
| 34-pin control cable connector - floppy drive | J2 |
| (optional) | |
|-------------------------------------------------+----------|
| 50-pin SCSI Channel A connector - internal | J3 |
|-------------------------------------------------+----------|
| 50-pin SCSI Channel B connector - internal | J5 |
| (optional) | |
|-------------------------------------------------+----------|
| 50-pin SCSI Channel A connector - external | J6 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|-----------------------------------+------------+-----------|
| ยป | Floppy drive enabled | J4 | closed |
|-----+-----------------------------+------------+-----------|
| | Floppy drive disabled | J4 | open |
|------------------------------------------------------------|
| Note: Jumper J4 is only present on those boards with a |
| floppy drive. |
+------------------------------------------------------------+
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