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DTC-2278S/D (900140-89B)
DATA TECHNOLOGY CORPORATION
DTC-2278S/D (900140-89B)
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Card Type
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Hard drive controller card
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Hard Drives supported
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Two IDE (AT) drives
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Floppy drives supported
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Two 360KB, 720KB, 1.2MB, or 1.44MB drives
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Data Bus
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32-bit VESA Local Bus
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Card Size
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Full-length, half-height card
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CONNECTIONS
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Function
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Location
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Function
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Location
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9-pin serial port 1 - external
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CN1
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34-pin cable connector - floppy drive
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J5
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25-pin parallel port - external
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CN2
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40-pin secondary IDE(AT) connector
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J6
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10-pin serial port 2 - internal
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J2
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40-pin primary IDE(AT) connector
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J7
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16-pin game port
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J4
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4-pin connector - drive active LED
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J8
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USER CONFIGURABLE SETTINGS
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Function
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Label
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Position
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Floppy drive interface enabled
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W7
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Pins 2 & 3 closed
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Floppy drive interface disabled
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W7
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Pins 1 & 2 closed
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Game port enabled
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W8
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Closed
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Game port disabled
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W8
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Open
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Parallel port is uni-directional
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W17
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Closed
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Parallel port is bi-directional
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W17
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Open
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PARALLEL PORT ADDRESS SELECTION
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Setting
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W1
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W2
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LPT1 (378h)
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Pins 2 & 3 closed
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Pins 1 & 2 closed
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LPT2 (278h)
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Pins 1 & 2 closed
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Pins 2 & 3 closed
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LPT3 (3BCh)
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Pins 2 & 3 closed
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Pins 2 & 3 closed
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Disabled
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Pins 1 & 2 closed
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Pins 1 & 2 closed
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SERIAL PORT 1 ADDRESS SELECTION
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Setting
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W5
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W6
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COM1 (3F8h)
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Pins 1 & 2 closed
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Pins 2 & 3 closed
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COM3 (3E8h)
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Pins 2 & 3 closed
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Pins 1 & 2 closed
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COM4 (2E8h)
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Pins 2 & 3 closed
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Pins 2 & 3 closed
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Disabled
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Pins 1 & 2 closed
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Pins 1 & 2 closed
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SERIAL PORT 2 ADDRESS SELECTION
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Setting
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W3
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W4
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COM2 (2F8h)
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Pins 1 & 2 closed
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Pins 2 & 3 closed
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COM3 (3E8h)
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Pins 2 & 3 closed
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Pins 2 & 3 closed
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COM4 (2E8h)
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Pins 2 & 3 closed
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Pins 1 & 2 closed
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Disabled
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Pins 1 & 2 closed
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Pins 1 & 2 closed
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SERIAL PORT 1 INTERRUPT SELECTION
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IRQ
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W14
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W15
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W16
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IRQ3
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Open
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Closed
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Open
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IRQ4
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Open
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Open
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Closed
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IRQ5
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Closed
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Open
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Open
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SERIAL PORT 2 INTERRUPT SELECTION
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IRQ
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W11
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W12
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W13
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IRQ3
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Open
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Open
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Closed
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IRQ4
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Open
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Closed
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Open
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IRQ5
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Closed
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Open
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Open
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PARALLEL PORT INTERRUPT SELECTION
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IRQ
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W9
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W10
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IRQ5
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Closed
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Open
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IRQ7
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Open
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Closed
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