DATA TECHNOLOGY CORPORATION
===========================

   DTC5280CA-I, DTC5280CZ-I

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

   Data bus: 16-bit, ISA

   Size: Full-length, full-height card

   Hard drives supported:  Two MFM ST506/412 drives

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

   Sector interleave: DTC5280CA-I: 2:1

   DTC5280CZ-I: 2:1

<gopher://bitreich.org/I/th99/c/C-D/20068-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                    Function                     | Location |
   |-------------------------------------------------+----------|
   | 34-pin data cable connector-floppy drive        |    J1    |
   |-------------------------------------------------+----------|
   | 34-pin control cable connector-hard drive       |    J2    |
   |-------------------------------------------------+----------|
   | 20-pin data cable connector-drive 0             |    J3    |
   |-------------------------------------------------+----------|
   | 20-pin data cable connector-drive 1             |    J4    |
   |-------------------------------------------------+----------|
   | 4-pin connector-drive active LED                |    J5    |
   |-------------------------------------------------+----------|
   | 37-pin floppy drive interface connector-floppy  |    J6    |
   | drive (5280CZ-I only)                           |          |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                  HARD DRIVE PORT ADDRESS                   |
   |------------------------------------------------------------|
   |                 Address                 |   W2    |   W3   |
   |-----------------------------------------+---------+--------|
   |>> | Port addresses are 1F0-1F7 3F2-3F7h |  open   |  open  |
   |---+-------------------------------------+---------+--------|
   |   | Port addresses are 170-177 372-377h | closed  | closed |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |               MISCELLANEOUS TECHNICAL NOTES                |
   |------------------------------------------------------------|
   |  Jumper W5 and W6 are Factory configured - do not alter.   |
   |                                                            |
   |  This controller has no onboard user accessible programs.  |
   +------------------------------------------------------------+