COMPUTONE CORPORATION
=====================

   VALUEPORT V4

   Card Type         Serial                                       
   Chip Set          Unidentified                                 
   I/O Options       Serial ports (4)                             
   Data Bus          8-bit ISA                                    

<gopher://bitreich.org/I/th99/i/C-D/52608-1.png>
   

   +------------------------------------------------------------+
   |                        CONNECTIONS                         |
   |------------------------------------------------------------|
   |                 Function                 |      Label      |
   |------------------------------------------+-----------------|
   | Serial ports via DB-37 port              |       CN1       |
   |------------------------------------------------------------|
   |      Note:Standard DB-25 serial ports are provided on an   |
   |      included adapter cable.                               |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                 USER CONFIGURABLE SETTINGS                 |
   |------------------------------------------------------------|
   |                Setting                 | Label  | Position |
   |----------------------------------------+--------+----------|
   |>> | Interrupt sharing disabled         | SW1/9  |    On    |
   |---+------------------------------------+--------+----------|
   |   | Interrupt sharing enabled          | SW1/9  |   Off    |
   |---+------------------------------------+--------+----------|
   |>> | Factory configured - do not alter  | SW1/10 |   Off    |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |              SERIAL PORT ADDRESSES/INTERRUPTS              |
   |------------------------------------------------------------|
   | Option |  Port 1  | IRQ |  Port 2  | IRQ | Port 3 | Port 4 |
   |--------+----------+-----+----------+-----+--------+--------|
   |    | 1 |   3F8h   |  4  |   2F8h   |  3  |  1B0h  |  1B8h  |
   |    |   | (COM1:)  |     | (COM2:)  |     |        |        |
   |----+---+----------+-----+----------+-----+--------+--------|
   |    | 2 |   3F8h   |  4  |   2F8h   |  3  |  2B0h  |  2B8h  |
   |    |   | (COM1:)  |     | (COM2:)  |     |        |        |
   |----+---+----------+-----+----------+-----+--------+--------|
   |>>  | 3 |   1A0h   | SW1 |   1A8h   | SW1 |  1B0h  |  1B8h  |
   |----+---+----------+-----+----------+-----+--------+--------|
   |    | 4 |   2A0h   | SW1 |   2A8h   | SW1 |  2B0h  |  2B8h  |
   |------------------------------------------------------------|
   |      Note:The interrupt for port 3 and port 4 is always    |
   |      set by SW1.                                           |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |          SERIAL PORT ADDRESSES/INTERRUPTS (CON'T)          |
   |------------------------------------------------------------|
   |         Option         |      SW1/7      |      SW1/8      |
   |------------------------+-----------------+-----------------|
   |         |      1       |       On        |       Off       |
   |---------+--------------+-----------------+-----------------|
   |         |      2       |       On        |       On        |
   |---------+--------------+-----------------+-----------------|
   |>>       |      3       |       Off       |       Off       |
   |---------+--------------+-----------------+-----------------|
   |         |      4       |       Off       |       On        |
   +------------------------------------------------------------+

   +------------------------------------------------------------+
   |                         INTERRUPT                          |
   |------------------------------------------------------------|
   | Setting | SW1/1  | SW1/2  | SW1/3  | SW1/4 | SW1/5 | SW1/6 |
   |---------+--------+--------+--------+-------+-------+-------|
   |  IRQ2   |   On   |  Off   |  Off   |  Off  |  Off  |  Off  |
   |---------+--------+--------+--------+-------+-------+-------|
   |  IRQ3   |  Off   |   On   |  Off   |  Off  |  Off  |  Off  |
   |---------+--------+--------+--------+-------+-------+-------|
   |  IRQ4   |  Off   |  Off   |   On   |  Off  |  Off  |  Off  |
   |---------+--------+--------+--------+-------+-------+-------|
   |  IRQ5   |  Off   |  Off   |  Off   |  On   |  Off  |  Off  |
   |---------+--------+--------+--------+-------+-------+-------|
   |  IRQ6   |  Off   |  Off   |  Off   |  Off  |  On   |  Off  |
   |---------+--------+--------+--------+-------+-------+-------|
   |  IRQ7   |  Off   |  Off   |  Off   |  Off  |  Off  |  On   |
   +------------------------------------------------------------+