DD&TT ENTERPRISE USA COMPANY
============================

   DT-3752

   +------------------------------------------------------------+
   |------------------------------------------------------------|
   | Data bus:         | 16-bit, ISA                            |
   |-------------------+----------------------------------------|
   | Size:             | Half-length, full-height card          |
   |-------------------+----------------------------------------|
   | Hard drive        | Two IDE(AT) Interface drives           |
   | supported:        |                                        |
   |-------------------+----------------------------------------|
   | Floppy drives     | Two 360KB, 720KB, 1.2MB, or 1.44MB     |
   | supported:        | drives                                 |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/c/C-D/20329-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                   Function                    |  Location  |
   |-----------------------------------------------+------------|
   | 40-pin IDE(AT) Interface connector            |     J1     |
   |-----------------------------------------------+------------|
   | 34-pin control cable connector - floppy drive |     J2     |
   |-----------------------------------------------+------------|
   | 10-pin serial port (COM2) - internal          |     J3     |
   |-----------------------------------------------+------------|
   | DB25 parallel port (LPT2/3) - external        |     J4     |
   |-----------------------------------------------+------------|
   | DB9 serial port (COM1) - external             |     J5     |
   |-----------------------------------------------+------------|
   | 2-pin connector - Drive Active LED            |    JP1     |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |             Function              | Location  |  Setting   |
   |-----------------------------------+-----------+------------|
   |>> | Parallel port is set to LPT3  |    JP2    | Pins 1 & 2 |
   |   | (278h)                        |           |   closed   |
   |---+-------------------------------+-----------+------------|
   |   | Parallel port is set to LPT2  |    JP2    | Pins 2 & 3 |
   |   | (378h)                        |           |   closed   |
   |---+-------------------------------+-----------+------------|
   |   | Parallel port disabled        |    JP2    |    open    |
   |---+-------------------------------+-----------+------------|
   |>> | Floppy drive port address is  |    JP3    | Pins 1 & 2 |
   |   | 3F0-3F7h                      |           |   closed   |
   |---+-------------------------------+-----------+------------|
   |   | Floppy drive port address is  |    JP3    | Pins 2 & 3 |
   |   | 370-377h                      |           |   closed   |
   |---+-------------------------------+-----------+------------|
   |   | Floppy drive disabled         |    JP3    |    open    |
   |---+-------------------------------+-----------+------------|
   |>> | Serial port 2 (2F8h) (J3)     |    JP4    |   closed   |
   |   | enabled                       |           |            |
   |---+-------------------------------+-----------+------------|
   |   | Serial port 2 (2F8h) (J3)     |    JP4    |    open    |
   |   | disabled                      |           |            |
   |---+-------------------------------+-----------+------------|
   |>> | Serial port 1 (3F8h) (J5)     |   JP4A    |   closed   |
   |   | enabled                       |           |            |
   |---+-------------------------------+-----------+------------|
   |   | Serial port 1 (3F8h) (J5)     |   JP4A    |    open    |
   |   | disabled                      |           |            |
   |---+-------------------------------+-----------+------------|
   |>> | Hard drive (CS0) port address |    JP5    | Pins 2 & 3 |
   |   | is 1F0-1F7h                   |           |   closed   |
   |---+-------------------------------+-----------+------------|
   |   | Hard drive (CS0) port address |    JP5    | Pins 1 & 2 |
   |   | is 170-177h                   |           |   closed   |
   |---+-------------------------------+-----------+------------|
   |   | Hard drive disabled           | JP5 & JP6 |    open    |
   |---+-------------------------------+-----------+------------|
   |>> | Hard drive (CS1) port address |    JP6    | Pins 2 & 3 |
   |   | is 3F0-3F7h                   |           |   closed   |
   |---+-------------------------------+-----------+------------|
   |   | Hard drive (CS1) port address |    JP6    | Pins 1 & 2 |
   |   | is 370-377h                   |           |   closed   |
   |---+-------------------------------+-----------+------------|
   |>> | Direct IRQ14 control          |    JP7    | Pins 1 & 2 |
   |   |                               |           |   closed   |
   |---+-------------------------------+-----------+------------|
   |   | Select SLAVE/ACTIVE control   |    JP7    | Pins 2 & 3 |
   |   |                               |           |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              PARALLEL PORT INTERRUPT REQUEST               |
   |------------------------------------------------------------|
   |       IRQ        |     Jumper JP8     |    Jumper JP8A     |
   |------------------+--------------------+--------------------|
   |>> |     IRQ7     |       closed       |        open        |
   |---+--------------+--------------------+--------------------|
   |   |     IRQ5     |        open        |       closed       |
   +------------------------------------------------------------+