CONTROL CONCEPTS, INC.
HB A8
Data bus: 8-bit, ISA
Size: Half-length, full-height card
Hard drives supported: Up to seven SCSI devices
Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB (Floppy support version only)
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MISCELLANEOUS TECHNICAL NOTE |
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JP6 is not used and should remain open. S1/switch 7 is not used and should remain off. Turning on S1/switch 8 will result in error |
CONTROL CONCEPTS USA
HB A8
. . . continued from previous page
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CONNECTIONS | |
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Function |
Location |
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4-pin connector-drive active LED |
CN1 |
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50-pin SCSI connector-internal |
CN2 |
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34-pin data cable connector-floppy drive |
CN3 |
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25-pinSCSI connector-external |
CN4 |
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USER CONFIGURABLE SETTINGS | |||
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Function |
Location |
Setting | |
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Floppy drive enabled |
JP1 |
pins 1 & 2 closed | |
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Floppy drive disabled |
JP1 |
pins 2 & 3 closed | |
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Floppy drive address 3F0-3F7h |
JP2 |
pins 1 & 2 closed | |
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Floppy drive address 370-377h |
JP2 |
pins 2 & 3 closed | |
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Single spindle speed selected |
JP3 |
open | |
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Dual spindle speed selected |
JP3 |
closed | |
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IRQ3 (Interrupt request-N/A in DOS) |
JP4/jumper 1 |
closed | |
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IRQ4 (Interrupt request-N/A in DOS) |
JP4/jumper 2 |
closed | |
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IRQ5 (Interrupt request-N/A in DOS) |
JP4/jumper 3 |
closed | |
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IRQ7 (Interrupt request-N/A in DOS) |
JP4/jumper 4 |
closed | |
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Precompensation value is 125ns |
JP5 |
open | |
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Precompensation value is 185ns |
JP5 |
closed | |
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BIOS ADDRESS | |||
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Address |
S1/switch 1 |
S1/switch 2 |
S1/switch 3 |
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C8000-CBE80h |
off |
on |
on |
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E0000-E3E80h |
on |
off |
on |
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DC000-DFE80h |
off |
off |
on |
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D8000-DBE80h |
on |
on |
off |
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D4000-D7E80h |
off |
on |
off |
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D0000-D3E80h |
on |
off |
off |
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CC000-CFE80h |
off |
off |
off |
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SCSI ADDRESS | ||||
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SCSI ID # |
S1/switch 4 |
S1/switch 5 |
S1/switch 6 | |
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7 |
off |
off |
off | |
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6 |
on |
off |
off | |
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5 |
off |
on |
off | |
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4 |
on |
on |
off | |
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3 |
off |
off |
on | |
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2 |
on |
off |
on | |
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1 |
off |
on |
on | |
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0 |
on |
on |
on | |