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# ADAPTEC, INC.
ACB-2310, ACB-2312
Data bus: 16-bit, ISA
Size: Full-length, full-height card
Hard drives Two MFM ST506
supported:
Floppy drives ACB-2312:Two 360KB, 720KB, 1.2MB, or
supported: 1.44MB
ACB-2310:None
IMG IMG 1
+------------------------------------------------------------+
| CONNECTIONS |
|------------------------------------------------------------|
| Function | Location |
|-------------------------------------------------+----------|
| 32-pin control cable connector-floppy drive | J1 |
| (ACB-2312 only) | |
|-------------------------------------------------+----------|
| 20-pin data cable connector-drive 1 | J3 |
|-------------------------------------------------+----------|
| 20-pin data cable connector-drive 0 | J4 |
|-------------------------------------------------+----------|
| 34-pin control cable connector-hard drive | J5 |
|-------------------------------------------------+----------|
| 4-pin connector-drive active LED | J6 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| USER CONFIGURABLE JUMPERS |
|------------------------------------------------------------|
| Function | Location | Setting |
|------------------------------------+----------+------------|
| » | Zero wait state disabled | JP9 - 1 | open |
|---+--------------------------------+----------+------------|
| | Zero wait state enabled | JP9 - 1 | closed |
|---+--------------------------------+----------+------------|
| » | Step rate is 16 sec and | JP9 - 2 | open |
| | recalibrate to 0 | | |
|---+--------------------------------+----------+------------|
| | Step rate is 35 sec and | JP9 - 2 | closed |
| | recalibrate to 0 minus 1 | | |
|---+--------------------------------+----------+------------|
| » | Not used | JP9 - 3 | open |
|---+--------------------------------+----------+------------|
| » | Serial monitor mode disabled | JP9 - 4 | open |
|---+--------------------------------+----------+------------|
| | Serial monitor mode enabled | JP9 - 4 | closed |
|---+--------------------------------+----------+------------|
| » | Normal operation | JP9 - 5 | open |
|---+--------------------------------+----------+------------|
| | Self diagnostics enabled | JP9 - 5 | closed |
|---+--------------------------------+----------+------------|
| » | Factory configured - do not | JP9 - 6 | open |
| | alter | | |
|---+--------------------------------+----------+------------|
| » | Floppy drive address 3F0-3F7h | J10 | open |
|---+--------------------------------+----------+------------|
| | Floppy drive address 370-377h | J10 | pins 1 & 2 |
| | | | closed |
|---+--------------------------------+----------+------------|
| » | Hard drive address 1F0-1F7h | J11 | open |
|---+--------------------------------+----------+------------|
| | Hard drive address 170-177h | J11 | pins 1 & 2 |
| | | | closed |
+------------------------------------------------------------+