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1.
th99
DD&TT ENTERPRISE USA COMPANY DT-3752
Data bus:16-bit, ISA
Size:Half-length, full-height card
Hard drive supported:Two IDE(AT) Interface drives
Floppy drives supported:Two 360KB, 720KB, 1.2MB, or 1.44MB drives


CONNECTIONS
FunctionLocation
40-pin IDE(AT) Interface connectorJ1
34-pin control cable connector - floppy driveJ2
10-pin serial port (COM2) - internalJ3
DB25 parallel port (LPT2/3) - externalJ4
DB9 serial port (COM1) - externalJ5
2-pin connector - Drive Active LEDJP1
USER CONFIGURABLE SETTINGS
FunctionLocationSetting
»Parallel port is set to LPT3 (278h)JP2Pins 1 & 2 closed
 Parallel port is set to LPT2 (378h)JP2Pins 2 & 3 closed
 Parallel port disabledJP2open
»Floppy drive port address is 3F0-3F7hJP3Pins 1 & 2 closed
 Floppy drive port address is 370-377hJP3Pins 2 & 3 closed
 Floppy drive disabledJP3open
»Serial port 2 (2F8h) (J3) enabledJP4closed
 Serial port 2 (2F8h) (J3) disabledJP4open
»Serial port 1 (3F8h) (J5) enabledJP4Aclosed
 Serial port 1 (3F8h) (J5) disabledJP4Aopen
»Hard drive (CS0) port address is 1F0-1F7hJP5Pins 2 & 3 closed
 Hard drive (CS0) port address is 170-177hJP5Pins 1 & 2 closed
 Hard drive disabledJP5 & JP6open
»Hard drive (CS1) port address is 3F0-3F7hJP6Pins 2 & 3 closed
 Hard drive (CS1) port address is 370-377hJP6Pins 1 & 2 closed
»Direct IRQ14 controlJP7Pins 1 & 2 closed
 Select SLAVE/ACTIVE controlJP7Pins 2 & 3 closed
PARALLEL PORT INTERRUPT REQUEST
IRQJumper JP8Jumper JP8A
»IRQ7closedopen
 IRQ5openclosed
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timestamp 2025-07-04 14:43:11