AMERICAN MULTISOURCE, INC.
SM4
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Data bus: |
16-bit ISA |
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Size: |
Three/quarter-length, full-height card |
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Hard drive supported: |
Two MFM ST506/412 drives |
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Floppy drives supported: |
Four 360KB, 720KB, 1.2MB, 1.44MB drives |
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CONNECTIONS | |
|
Function |
Location |
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34-pin control cable connector - hard drive |
J1 |
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20-pin data cable connector |
J2 |
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20-pin data cable connector |
J3 |
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34-pin connector - floppy drive interface (drives 1 & 2) |
J4 |
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4-pin connector - drive active LED |
J5 |
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34-pin connector - floppy drive interface (drives 3 & 4) |
J6 |
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34-pin connector - floppy drive interface (drives 3 & 4) - external |
J7 |
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USER CONFIGURABLE SETTINGS | |||
|
Function |
Location |
Setting | |
|
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Floppy drive interface address select primary |
W8 |
open |
|
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Floppy drive interface address select secondary |
W8 |
closed |
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Hard drive address is primary |
W11 |
open |
|
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Hard drive address is secondary |
W11 |
closed |
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HARD DRIVE INTERFACE CONFIGURATION | |||
|
Setting |
W5 |
W12 | |
|
|
Enabled |
pins 2 & 3 closed |
closed |
|
|
Disabled |
pins 1 & 2 closed |
open |
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FLOPPY DRIVE INTERFACE CONFIGURATION | |||
|
Setting |
W9 |
W10 | |
|
|
Enabled |
closed |
closed |
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Disabled |
open |
open |
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Note: The location of W9 is unidentified. | |||