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

   DTC3270VL REV. A

   +------------------------------------------------------------+
   |------------------------------------------------------------|
   | Data bus:         | 32-bit, VL-bus                         |
   |-------------------+----------------------------------------|
   | Size:             | Three/quarter-length, full-height card |
   |-------------------+----------------------------------------|
   | Hard drive        | Up to seven SCSI devices               |
   | supported:        |                                        |
   |-------------------+----------------------------------------|
   | Floppy drives     | Two 360KB, 720KB, 1.2MB, or 1.44MB     |
   | supported:        | drives                                 |
   +------------------------------------------------------------+

<gopher://bitreich.org/I/th99/c/C-D/20442-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                  Function                   |   Location   |
   |---------------------------------------------+--------------|
   | 50-pin SCSI connector - external            |      J1      |
   |---------------------------------------------+--------------|
   | 50-pin SCSI connector - internal            |      J2      |
   |---------------------------------------------+--------------|
   | 34-pin control cable connector-floppy drive |      J3      |
   |---------------------------------------------+--------------|
   | 4-pin connector-Drive active LED            |      J4      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                     VL-BUS CLOCK SPEED                     |
   |------------------------------------------------------------|
   |        Speed         |    Jumper W1     |    Jumper W2     |
   |----------------------+------------------+------------------|
   |   |     20/25MHz     |       open       |      closed      |
   |---+------------------+------------------+------------------|
   |>> |      33MHz       |      closed      |       open       |
   |---+------------------+------------------+------------------|
   |   |     40/50MHz     |       open       |       open       |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |             Function              |  Location  |  Setting  |
   |-----------------------------------+------------+-----------|
   |>> | SCSI parity check enabled     |     W3     |    on     |
   |---+-------------------------------+------------+-----------|
   |   | SCSI parity check disabled    |     W3     |    off    |
   |---+-------------------------------+------------+-----------|
   |>> | Shared Interrupt disabled     |     W4     |    on     |
   |---+-------------------------------+------------+-----------|
   |   | Shared Interrupt enabled      |     W4     |    off    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                          SCSI ID                           |
   |------------------------------------------------------------|
   |     ID     |   Jumper W5   |   Jumper W6   |   Jumper W7   |
   |------------+---------------+---------------+---------------|
   |   |   0    |    closed     |    closed     |    closed     |
   |---+--------+---------------+---------------+---------------|
   |   |   1    |    closed     |    closed     |     open      |
   |---+--------+---------------+---------------+---------------|
   |   |   2    |    closed     |     open      |    closed     |
   |---+--------+---------------+---------------+---------------|
   |   |   3    |    closed     |     open      |     open      |
   |---+--------+---------------+---------------+---------------|
   |   |   4    |     open      |    closed     |    closed     |
   |---+--------+---------------+---------------+---------------|
   |   |   5    |     open      |    closed     |     open      |
   |---+--------+---------------+---------------+---------------|
   |   |   6    |     open      |     open      |    closed     |
   |---+--------+---------------+---------------+---------------|
   |>> |   7    |     open      |     open      |     open      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                        BIOS ADDRESS                        |
   |------------------------------------------------------------|
   |      Address       |     Jumper W8     |     Jumper W9     |
   |--------------------+-------------------+-------------------|
   |   |     C800h      |      closed       |      closed       |
   |---+----------------+-------------------+-------------------|
   |   |     CC00h      |      closed       |       open        |
   |---+----------------+-------------------+-------------------|
   |>> |     D800h      |       open        |      closed       |
   |---+----------------+-------------------+-------------------|
   |   |     DC00h      |       open        |       open        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                          SCSI ID                           |
   |------------------------------------------------------------|
   |    ID    |  W11   |  W12   |  W13  |  W14  |  W15  |  W16  |
   |----------+--------+--------+-------+-------+-------+-------|
   | |   10   | closed | closed | open  | open  | open  |closed |
   |-+--------+--------+--------+-------+-------+-------+-------|
   |>>|   11   | closed |  open  | open  | open  |closed | open  |
   |-+--------+--------+--------+-------+-------+-------+-------|
   | |   12   |  open  | closed | open  |closed | open  | open  |
   |-+--------+--------+--------+-------+-------+-------+-------|
   | |   15   |  open  |  open  |closed | open  | open  | open  |
   |-+--------+--------+--------+-------+-------+-------+-------|
   | |Disabled|  open  |  open  | open  | open  | open  | open  |
   +------------------------------------------------------------+