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       # SEALEVEL SYSTEMS, INC.
       
          VERSA COMM+4/EX
       
          Card Type           Serial card                                
          Chip Set            Unidentified                               
          Maximum Onboard     Unidentified                               
          Memory              
          I/O Options         Serial ports (4 RS-232 via DB 37           
                              connector)                                 
          Hard Drives         None                                       
          supported           
          Floppy drives       None                                       
          supported           
          Data Bus            16-bit ISA                                 
          Card Size           Full-length, full-height                   
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |           Function            |           Label            |
          |-------------------------------+----------------------------|
          | Serial Port                   |             P3             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                   PORT ADDRESS SELECTION                   |
          |------------------------------------------------------------|
          | Port 1 | Port 2 | Port 3 | Port 4 | SW1/6  | SW1/7 | SW1/8 |
          |--------+--------+--------+--------+--------+-------+-------|
          |  3F8h  |  2F8h  |  3E8h  |  2E8h  |   On   |  On   |  Off  |
          |--------+--------+--------+--------+--------+-------+-------|
          |  2F8h  |  3E8h  |  2E8h  |  2E0h  |   On   |  Off  |  On   |
          |--------+--------+--------+--------+--------+-------+-------|
          |  3E8h  |  2E8h  |  280h  |  288h  |   On   |  Off  |  Off  |
          |--------+--------+--------+--------+--------+-------+-------|
          |  500h  |  508h  |  510h  |  518h  |  Off   |  On   |  On   |
          |--------+--------+--------+--------+--------+-------+-------|
          |  580h  |  588h  |  590h  |  598h  |  Off   |  On   |  Off  |
          |--------+--------+--------+--------+--------+-------+-------|
          | 1500h  | 1508h  | 1510h  | 1518h  |  Off   |  Off  |  On   |
          |--------+--------+--------+--------+--------+-------+-------|
          | 3220h  | 3228h  | 4220h  | 4228h  |  Off   |  Off  |  Off  |
          |------------------------------------------------------------|
          | Note: Use either the port address selection or the base    |
          | I/O address selection. When using the port address         |
          | selection, switches 1-5 must be off.                       |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 BASE I/O ADDRESS SELECTION                 |
          |------------------------------------------------------------|
          |   Setting   |  SW1/1   | SW1/2  | SW1/3  | SW1/4  | SW1/5  |
          |-------------+----------+--------+--------+--------+--------|
          |    |  1A0h  |    On    |  Off   |  Off   |   On   |  Off   |
          |----+--------+----------+--------+--------+--------+--------|
          | »  |  280h  |   Off    |   On   |  Off   |   On   |   On   |
          |----+--------+----------+--------+--------+--------+--------|
          |    |  2A0h  |   Off    |   On   |  Off   |   On   |  Off   |
          |----+--------+----------+--------+--------+--------+--------|
          |    |  2E0h  |   Off    |   On   |  Off   |  Off   |  Off   |
          |----+--------+----------+--------+--------+--------+--------|
          |    |  380h  |   Off    |  Off   |  Off   |   On   |   On   |
          |------------------------------------------------------------|
          | Note: When using the base I/O address selection, switches  |
          | 6-8 must be on.                                            |
          +------------------------------------------------------------+
       
       +--------------------------------------------------------------------------+
       |                    SERIAL PORT 1 INTERRUPT SELECTION                     |
       |--------------------------------------------------------------------------|
       |IRQ |J1B/A |J1B/B |J1B/C |J1B/D |J1B/E |J1B/F |J1B/G |J1B/H |J1B/I |J1B/J |
       |----+------+------+------+------+------+------+------+------+------+------|
       | |3 |Closed| Open | Open | Open | Open | Open | Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |4 | Open |Closed| Open | Open | Open | Open | Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       |»|5 | Open | Open |Closed| Open | Open | Open | Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |6 | Open | Open | Open |Closed| Open | Open | Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |7 | Open | Open | Open | Open |Closed| Open | Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |9 | Open | Open | Open | Open | Open |Closed| Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |10| Open | Open | Open | Open | Open | Open |Closed| Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |11| Open | Open | Open | Open | Open | Open | Open |Closed| Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |12| Open | Open | Open | Open | Open | Open | Open | Open |Closed| Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |15| Open | Open | Open | Open | Open | Open | Open | Open | Open |Closed|
       +--------------------------------------------------------------------------+
       
       +--------------------------------------------------------------------------+
       |                    SERIAL PORT 2 INTERRUPT SELECTION                     |
       |--------------------------------------------------------------------------|
       |IRQ |J2B/A |J2B/B |J2B/C |J2B/D |J2B/E |J2B/F |J2B/G |J2B/H |J2B/I |J2B/J |
       |----+------+------+------+------+------+------+------+------+------+------|
       | |3 |Closed| Open | Open | Open | Open | Open | Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |4 | Open |Closed| Open | Open | Open | Open | Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       |»|5 | Open | Open |Closed| Open | Open | Open | Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |6 | Open | Open | Open |Closed| Open | Open | Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |7 | Open | Open | Open | Open |Closed| Open | Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |9 | Open | Open | Open | Open | Open |Closed| Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |10| Open | Open | Open | Open | Open | Open |Closed| Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |11| Open | Open | Open | Open | Open | Open | Open |Closed| Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |12| Open | Open | Open | Open | Open | Open | Open | Open |Closed| Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |15| Open | Open | Open | Open | Open | Open | Open | Open | Open |Closed|
       +--------------------------------------------------------------------------+
       
       +--------------------------------------------------------------------------+
       |                    SERIAL PORT 3 INTERRUPT SELECTION                     |
       |--------------------------------------------------------------------------|
       |IRQ |J3B/A |J3B/B |J3B/C |J3B/D |J3B/E |J3B/F |J3B/G |J3B/H |J3B/I |J3B/J |
       |----+------+------+------+------+------+------+------+------+------+------|
       | |3 |Closed| Open | Open | Open | Open | Open | Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |4 | Open |Closed| Open | Open | Open | Open | Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       |»|5 | Open | Open |Closed| Open | Open | Open | Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |6 | Open | Open | Open |Closed| Open | Open | Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |7 | Open | Open | Open | Open |Closed| Open | Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |9 | Open | Open | Open | Open | Open |Closed| Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |10| Open | Open | Open | Open | Open | Open |Closed| Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |11| Open | Open | Open | Open | Open | Open | Open |Closed| Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |12| Open | Open | Open | Open | Open | Open | Open | Open |Closed| Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |15| Open | Open | Open | Open | Open | Open | Open | Open | Open |Closed|
       +--------------------------------------------------------------------------+
       
       +--------------------------------------------------------------------------+
       |                    SERIAL PORT 4 INTERRUPT SELECTION                     |
       |--------------------------------------------------------------------------|
       |IRQ |J4B/A |J4B/B |J4B/C |J4B/D |J4B/E |J4B/F |J4B/G |J4B/H |J4B/I |J4B/J |
       |----+------+------+------+------+------+------+------+------+------+------|
       | |3 |Closed| Open | Open | Open | Open | Open | Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |4 | Open |Closed| Open | Open | Open | Open | Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       |»|5 | Open | Open |Closed| Open | Open | Open | Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |6 | Open | Open | Open |Closed| Open | Open | Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |7 | Open | Open | Open | Open |Closed| Open | Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |9 | Open | Open | Open | Open | Open |Closed| Open | Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |10| Open | Open | Open | Open | Open | Open |Closed| Open | Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |11| Open | Open | Open | Open | Open | Open | Open |Closed| Open | Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |12| Open | Open | Open | Open | Open | Open | Open | Open |Closed| Open |
       |-+--+------+------+------+------+------+------+------+------+------+------|
       | |15| Open | Open | Open | Open | Open | Open | Open | Open | Open |Closed|
       +--------------------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |           SERIAL INTERRUPT MODE SELECTION PORT 1           |
          |------------------------------------------------------------|
          |                  IRQ                   |        J1A        |
          |----------------------------------------+-------------------|
          |   | Normal interrupt mode              | Pins 1 & 2 closed |
          |---+------------------------------------+-------------------|
          |   | Shared interrupt mode              | Pins 2 & 3 closed |
          |---+------------------------------------+-------------------|
          | » | Shared interrupt mode with pull    | Pins 3 & 4 closed |
          |   | down resistor                      |                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |           SERIAL INTERRUPT MODE SELECTION PORT 2           |
          |------------------------------------------------------------|
          |                  IRQ                   |        J2A        |
          |----------------------------------------+-------------------|
          |   | Normal interrupt mode              | Pins 1 & 2 closed |
          |---+------------------------------------+-------------------|
          | » | Shared interrupt mode              | Pins 2 & 3 closed |
          |---+------------------------------------+-------------------|
          |   | Shared interrupt mode with pull    | Pins 3 & 4 closed |
          |   | down resistor                      |                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |           SERIAL INTERRUPT MODE SELECTION PORT 3           |
          |------------------------------------------------------------|
          |                  IRQ                   |        J3A        |
          |----------------------------------------+-------------------|
          |   | Normal interrupt mode              | Pins 1 & 2 closed |
          |---+------------------------------------+-------------------|
          | » | Shared interrupt mode              | Pins 2 & 3 closed |
          |---+------------------------------------+-------------------|
          |   | Shared interrupt mode with pull    | Pins 3 & 4 closed |
          |   | down resistor                      |                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |           SERIAL INTERRUPT MODE SELECTION PORT 4           |
          |------------------------------------------------------------|
          |                  IRQ                   |        J4A        |
          |----------------------------------------+-------------------|
          |   | Normal interrupt mode              | Pins 1 & 2 closed |
          |---+------------------------------------+-------------------|
          | » | Shared interrupt mode              | Pins 2 & 3 closed |
          |---+------------------------------------+-------------------|
          |   | Shared interrupt mode with pull    | Pins 3 & 4 closed |
          |   | down resistor                      |                   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                    CLOCK MODE SELECTION                    |
          |------------------------------------------------------------|
          |           Divide           |              J5               |
          |----------------------------+-------------------------------|
          |             1              |       Pins 1 & 2 closed       |
          |----------------------------+-------------------------------|
          |             2              |       Pins 3 & 4 closed       |
          |----------------------------+-------------------------------|
          |             4              |       Pins 5 & 6 closed       |
          +------------------------------------------------------------+