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# ADAPTEC, INC.
ACB-2370
Data bus: 16-bit, ISA
Size: Half-length, full-height card
Hard drives supported: Two RLL ST506/412 drives
Floppy drives supported: None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|-------------------------------------------+----------------|
| 20-pin data cable connector-drive 1 | J1 |
|-------------------------------------------+----------------|
| 20-pin data cable connector-drive 0 | J2 |
|-------------------------------------------+----------------|
| 34-pin control cable connector-hard drive | J3 |
|-------------------------------------------+----------------|
| 3-pin connector-drive active LED | J5 |
|-------------------------------------------+----------------|
| Serial monitor output | J10 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE SETTINGS |
|------------------------------------------------------------|
| Function | Location | Setting |
|---------------------------------+-------------+------------|
| » | Hard drive port address | J6/jumper 1 | open |
| | 1F0-1F7h | | |
|---+-----------------------------+-------------+------------|
| | Hard drive port address | J6/jumper 1 | closed |
| | 170-177h | | |
|---+-----------------------------+-------------+------------|
| » | Zero wait state enabled | J6/jumper 3 | open |
|---+-----------------------------+-------------+------------|
| | Zero wait state disabled | J6/jumper 3 | closed |
|---+-----------------------------+-------------+------------|
| » | 35 m sec step rate and | J6/jumper 4 | open |
| | recalibrate to 0 minus 1 | | |
|---+-----------------------------+-------------+------------|
| | 16 m sec step rate and | J6/jumper 4 | closed |
| | recalibrate to 0 | | |
|---+-----------------------------+-------------+------------|
| » | Serial monitor mode | J6/jumper 6 | open |
| | disabled | | |
|---+-----------------------------+-------------+------------|
| | Serial monitor mode enabled | J6/jumper 6 | closed |
| | (2400 baud) | | |
|---+-----------------------------+-------------+------------|
| » | Hard drive Interrupt is | J13 | pins 1 & 2 |
| | IRQ14 | | closed |
|---+-----------------------------+-------------+------------|
| | Hard drive Interrupt is | J13 | pins 2 & 3 |
| | IRQ15 | | closed |
|---+-----------------------------+-------------+------------|
| » | BIOS address C800h | J14 | pins 1 & 2 |
| | | | closed |
|---+-----------------------------+-------------+------------|
| | BIOS address CC00h | J14 | pins 2 & 3 |
| | | | closed |
|---+-----------------------------+-------------+------------|
| | BIOS disabled | J14 | all pins |
| | | | open |
+------------------------------------------------------------+
+------------------------------------------------------------+
| MISCELLANEOUS TECHNICAL NOTES |
|------------------------------------------------------------|
| Jumpers J6/jumper 2 and J6/jumper 5 are not used. Jumpers |
| J4, J7, J8, J9, J11, J12 and J15 are for factory tests and |
| should not be altered. Pins 3 & 4 on jumper J13 should |
| never be closed. J13 or J14 should never have more than |
| two pins closed at a time. |
+------------------------------------------------------------+