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

   DTC2270 (90010-89B)

   +------------------------------------------------------------+
   |------------------------------------------------------------|
   | Data bus:         | 32-bit, VL-bus                         |
   |-------------------+----------------------------------------|
   | Size:             | Three/quarter-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/20443-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                  Function                   |   Location   |
   |---------------------------------------------+--------------|
   | 25-pin parallel port (LPT1/2/3) - external  |      J1      |
   |---------------------------------------------+--------------|
   | 10-pin serial port 1 (COM1/3/4) - external  |      J2      |
   |---------------------------------------------+--------------|
   | 10-pin serial port 2 (COM1/2/4) - internal  |      J3      |
   |---------------------------------------------+--------------|
   | 15-pin game port - internal                 |      J4      |
   |---------------------------------------------+--------------|
   | 34-pin control cable connector-floppy drive |      J5      |
   |---------------------------------------------+--------------|
   | 40-pin AT Interface (IDE) connector         |      J6      |
   |---------------------------------------------+--------------|
   | 4-pin connector-Drive active LED            |      J7      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |            Function             |  Location   |  Setting   |
   |---------------------------------+-------------+------------|
   |>> | Parallel Port (J1) uses     |     W1      | pins 1 & 2 |
   |   | IRQ7                        |             |   closed   |
   |---+-----------------------------+-------------+------------|
   |   | Parallel Port (J1) uses     |     W1      | pins 2 & 3 |
   |   | IRQ5                        |             |   closed   |
   |---+-----------------------------+-------------+------------|
   |>> | Floppy drive enabled        | W3/jumper 7 |    open    |
   |---+-----------------------------+-------------+------------|
   |   | Floppy drive disabled       | W3/jumper 7 |   closed   |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |     SERIAL PORTS INTERRUPT REQUEST CONFIGURATION - W2      |
   |------------------------------------------------------------|
<gopher://bitreich.org/I/th99/c/C-D/20443-2.png>
   |                          |                         |
   |----------------------------------+-------------------------|
   |   |             IRQ              | Location |   Setting    |
   |---+------------------------------+----------+--------------|
   |>> | Serial Port 1 (J2) uses IRQ4 |    W2    |  pins 1 & 3  |
   |   |                              |          |    closed    |
   |---+------------------------------+----------+--------------|
   |   | Serial Port 2 (J3) uses IRQ3 |          |  pins 2 & 4  |
   |   |                              |          |    closed    |
   |---+------------------------------+----------+--------------|
   |   | Serial Port 1 (J2) uses IRQ3 |    W2    |  pins 1 & 2  |
   |   |                              |          |    closed    |
   |---+------------------------------+----------+--------------|
   |   | Serial Port 2 (J3) uses IRQ4 |          |  pins 3 & 4  |
   |   |                              |          |    closed    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              SERIAL PORT 2 (J3) CONFIGURATION              |
   |------------------------------------------------------------|
   |         COM          |   W3/jumper 1    |   W3/jumper 2    |
   |----------------------+------------------+------------------|
   |   |   COM1 (3F8h)    |       open       |      closed      |
   |---+------------------+------------------+------------------|
   |>> |   COM2 (2F8h)    |       open       |       open       |
   |---+------------------+------------------+------------------|
   |   |   COM4 (238h)    |      closed      |       open       |
   |---+------------------+------------------+------------------|
   |   |     Disabled     |      closed      |      closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              PARALLEL PORT (J1) CONFIGURATION              |
   |------------------------------------------------------------|
   |         LPT          |   W3/jumper 3    |   W3/jumper 4    |
   |----------------------+------------------+------------------|
   |>> |   LPT1 (378h)    |       open       |      closed      |
   |---+------------------+------------------+------------------|
   |   |   LPT2 (278h)    |       open       |       open       |
   |---+------------------+------------------+------------------|
   |   |   LPT3 (3BCh)    |      closed      |       open       |
   |---+------------------+------------------+------------------|
   |   |     Disabled     |      closed      |      closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              SERIAL PORT 1 (J2) CONFIGURATION              |
   |------------------------------------------------------------|
   |         COM          |   W3/jumper 5    |   W3/jumper 6    |
   |----------------------+------------------+------------------|
   |>> |   COM1 (3F8h)    |       open       |       open       |
   |---+------------------+------------------+------------------|
   |   |   COM2 (2F8h)    |      closed      |       open       |
   |---+------------------+------------------+------------------|
   |   |   COM3 (338h)    |       open       |      closed      |
   |---+------------------+------------------+------------------|
   |   |     Disabled     |      closed      |      closed      |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |     DRIVE TRANSFER RATE CONFIGURATION - 33MHZ/66I MHZ      |
   |                        MOTHERBOARDS                        |
   |------------------------------------------------------------|
   |     Rate      | W4/1  |  W4/2   |  W4/3  |  W4/4  |  W4/5  |
   |---------------+-------+---------+--------+--------+--------|
   |   | 8.3Mb/sec | open  |  open   |  open  |  open  |  open  |
   |---+-----------+-------+---------+--------+--------+--------|
   |   | 7.3Mb/sec | open  |  open   |  open  | closed | closed |
   |---+-----------+-------+---------+--------+--------+--------|
   |   | 6.6Mb/sec | open  |  open   | closed |  open  |  open  |
   |---+-----------+-------+---------+--------+--------+--------|
   |   | 6.1Mb/sec | open  |  open   | closed |  open  | closed |
   |---+-----------+-------+---------+--------+--------+--------|
   |   | 5.5Mb/sec | open  |  open   | closed | closed |  open  |
   |---+-----------+-------+---------+--------+--------+--------|
   |   | 5.1Mb/sec | open  |  open   | closed | closed | closed |
   |---+-----------+-------+---------+--------+--------+--------|
   |   | 4.8Mb/sec | open  | closed  |  open  |  open  |  open  |
   |---+-----------+-------+---------+--------+--------+--------|
   |   | 4.4Mb/sec | open  | closed  |  open  |  open  | closed |
   |---+-----------+-------+---------+--------+--------+--------|
   |   | 4.1Mb/sec | open  | closed  |  open  | closed |  open  |
   |---+-----------+-------+---------+--------+--------+--------|
   |>> | 3.9Mb/sec | open  | closed  |  open  | closed | closed |
   |---+-----------+-------+---------+--------+--------+--------|
   |   | 3.7Mb/sec | open  | closed  | closed |  open  |  open  |
   |---+-----------+-------+---------+--------+--------+--------|
   |   | 3.5Mb/sec | open  | closed  | closed |  open  | closed |
   |---+-----------+-------+---------+--------+--------+--------|
   |   | 3.3Mb/sec | open  | closed  | closed | closed |  open  |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |  DRIVE TRANSFER RATE CONFIGURATION - 20, 25, 40 AND 50MHZ  |
   |                        MOTHERBOARDS                        |
   |------------------------------------------------------------|
   |   Rate    |  W4/1   |  W4/2   |  W4/3   |  W4/4   |  W4/5  |
   |-----------+---------+---------+---------+---------+--------|
   | 7.1Mb/sec | closed  |  open   |  open   |  open   |  open  |
   |-----------+---------+---------+---------+---------+--------|
   | 6.3Mb/sec | closed  |  open   |  open   | closed  | closed |
   |-----------+---------+---------+---------+---------+--------|
   | 5.6Mb/sec | closed  |  open   | closed  |  open   |  open  |
   |-----------+---------+---------+---------+---------+--------|
   | 5.0Mb/sec | closed  |  open   | closed  |  open   | closed |
   |-----------+---------+---------+---------+---------+--------|
   | 4.5Mb/sec | closed  |  open   | closed  | closed  |  open  |
   |-----------+---------+---------+---------+---------+--------|
   | 4.2Mb/sec | closed  |  open   | closed  | closed  | closed |
   |-----------+---------+---------+---------+---------+--------|
   | 3.8Mb/sec | closed  | closed  |  open   |  open   |  open  |
   |-----------+---------+---------+---------+---------+--------|
   | 3.6Mb/sec | closed  | closed  |  open   |  open   | closed |
   |-----------+---------+---------+---------+---------+--------|
   | 3.3Mb/sec | closed  | closed  |  open   | closed  |  open  |
   +------------------------------------------------------------+