DTK COMPUTER, INC.
==================

   PTI-215

   +------------------------------------------------------------+
   +------------------------------------------------------------+

   Data bus: 16-bit, ISA

   Size: Half-length, full-height card

   Hard drives supported:  Two IDE (AT) Interface drives

   Floppy drives supported: Two 360KB, 720KB, 1.2MB, or 1.44MB

<gopher://bitreich.org/I/th99/c/C-D/20079-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                   Function                   |  Location   |
   |----------------------------------------------+-------------|
   | 4-pin connector-drive active LED             |     J1      |
   |----------------------------------------------+-------------|
   | 40-pin AT Interface (IDE) connector-internal |     J2      |
   |----------------------------------------------+-------------|
   | 34-pin data cable connector-floppy drive     |     J3      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |              Function              | Location |  Setting   |
   |------------------------------------+----------+------------|
   |>> | Hard drive enabled             |   JP1    |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Hard drive disabled            |   JP1    |    open    |
   |---+--------------------------------+----------+------------|
   |>> | Normal operation               |   JP2    | pins 1 & 2 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Supports old IDE drive types   |   JP2    | pins 2 & 3 |
   |   | (ie: Conner CP-342)            |          |   closed   |
   |---+--------------------------------+----------+------------|
   |>> | Single speed floppy drives     |   JP3    | pins 1 & 2 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Dual speed floppy drives       |   JP3    | pins 2 & 3 |
   |   |                                |          |   closed   |
   |---+--------------------------------+----------+------------|
   |   | Precomp. value dependent on    |          |            |
   |   | data rate as follows:          |          |            |
   |   |                                |          |            |
   |   | 500Kb/sec = 125ns precomp.     |          |            |
   |   |                                |          |            |
   |   | 125Kb/sec = 208ns precomp.     |          |            |
   |   |                                |   JP4    | pins 1 & 2 |
   |   | 125Kb/sec = 250ns precomp.     |          |   closed   |
   |   |                                |          |            |
   |   | 1000Kb/sec = 83ns precomp.     |          |            |
   |---+--------------------------------+----------+------------|
   |   | Precomp. value dependent on    |          |            |
   |   | data rate as follows:          |          |            |
   |   |                                |          |            |
   |   | 500Kb/sec = 125ns precomp.     |          |            |
   |   |                                |          |            |
   |   | 300Kb/sec = 125ns precomp.     |          |            |
   |   |                                |   JP4    | pins 2 & 3 |
   |   | 250Kb/sec = 125ns precomp.     |          |   closed   |
   |   |                                |          |            |
   |   | 1000Kb/sec = 83ns precomp.     |          |            |
   +------------------------------------------------------------+