UNIDENTIFIED
B237
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Data bus: |
16-bit, ISA |
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Size: |
Half-length, full-height card |
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Hard drive supported: |
Two IDE (AT) Interface drives |
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Floppy drives supported: |
Two 360KB, 720KB, 1.2MB, or 1.44MB drives |
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CONNECTIONS | |
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Function |
Location |
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25-pin parallel port (LPT1/2) - external |
CN1 |
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15-pin game port - external |
CN2 |
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10-pin serial port (COM1/3) - internal |
CN3 |
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10-pin serial port (COM2/4) - internal |
CN4 |
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34-pin control cable connector - floppy drive |
CN5 |
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40-pin IDE (AT) Interface connector |
CN6 |
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4-pin connector - drive active LED |
CN7 |
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PARALLEL PORT ADDRESS | ||
|
Setting |
JP3 |
JP4 |
|
3BCh |
pins 2 & 3 closed |
pins 1 & 2 closed |
|
378h |
pins 1 & 3 closed |
pins 1 & 2 closed |
|
278h |
pins 1 & 2 closed |
pins 2 & 3 closed |
|
Disable |
pins 2 & 3 closed |
pins 2 & 3 closed |
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SERIAL PORTS COM SELECT | ||||
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Serial 1 |
Serial 2 |
JP5 |
JP6 |
JP7 |
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COM1 |
COM2 |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 1 & 2 closed |
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COM2 |
COM1 |
pins 1 & 2 closed |
pins 1 & 2 closed |
pins 2 & 3 closed |
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FLOPPY DRIVE SELECT | ||
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Setting |
JP8 |
JP9 |
|
Enabled |
pins 1 & 2 closed |
pins 1 & 2 closed |
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Disabled |
pins 2 & 3 closed |
pins 2 & 3 closed |