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16 BIT MULTI-I/O
ABC COMPUTER COMPANY, LTD.
16 BIT MULTI-I/O
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Data bus:
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16-bit, ISA
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Size:
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Half-length, full-height card
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Hard drive supported:
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Two IDE (AT) Interface drives
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Floppy drives supported:
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Four 360KB, 720KB, 1.2MB, or 1.44MB drives
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CONNECTIONS
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Function
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Location
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34-pin control cable connector - floppy drive
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J1
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34-pin control cable connector - floppy drive/tape drive
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J2
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2-pin connector - Drive active LED
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J3
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40-pin IDE(AT) Interface connector
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J4
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10-pin serial port (COM1/3) - internal
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J5
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10-pin serial port (COM2/4) - internal
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J6
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15-pin game port - external
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J7
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25-pin parallel port (LPT1/2) - external
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J8
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USER CONFIGURABLE SETTINGS
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Function
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Location
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Setting
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Disk change signal is set to normal operation
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JP1
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closed
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Disk change signal is set to diagnostic mode
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JP1
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open
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I/O Channel Ready signal disabled
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JP2
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closed
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I/O Channel Ready signal enabled
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JP2
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open
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Game Port (J7) enabled
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JP10
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closed
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Game Port (J7) disabled
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JP10
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open
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PARALLEL PORT (J8) CONFIGURATION
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LPT/IRQ
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JP3
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JP6
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JP9
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LPT1/IRQ7
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on
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off
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pins 2 & 3 closed
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LPT2/IRQ5
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off
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on
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pins 1 & 2 closed
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Disabled
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off
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off
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n/a
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SERIAL PORT 2 (J6) CONFIGURATION
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COM/IRQ
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JP4
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JP7
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COM2/IRQ3
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closed
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pins 1 & 2 closed
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COM4/IRQ5
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open
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pins 2 & 3 closed
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SERIAL PORT 1 (J5) CONFIGURATION
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COM/IRQ
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JP5
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JP8
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COM1/IRQ4
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closed
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pins 1 & 2 closed
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COM3/IRQ9
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open
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pins 2 & 3 closed
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