(TXT) View Source
       
       # DIGITAL COMMUNICATIONS ASSOCIATES, INC.
       
          IRMA 2-ISA
       
          Category               Serial communications adapter           
          Chipset Controller     Unidentified                            
          I /O Options Supported Serial port                             
          Maximum Onboard Memory N/A                                     
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |            Purpose            |          Location          |
          |-------------------------------+----------------------------|
          | Serial port - coaxial         |            CN1             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     220H BASE ADDRESS                      |
          |------------------------------------------------------------|
          |             Setting             |          SW1/2           |
          |---------------------------------+--------------------------|
          | » |           Enabled           |            On            |
          |---+-----------------------------+--------------------------|
          |   |          Disabled           |           Off            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                        I/O ADDRESS                         |
          |------------------------------------------------------------|
          |       Address        |      SW1/3       |      SW1/4       |
          |----------------------+------------------+------------------|
          | » |       280h       |        On        |        On        |
          |---+------------------+------------------+------------------|
          |   |       2A0h       |        On        |       Off        |
          |---+------------------+------------------+------------------|
          |   |       2C0h       |       Off        |        On        |
          |---+------------------+------------------+------------------|
          |   |       300h       |       Off        |       Off        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      INTERRUPT SELECT                      |
          |------------------------------------------------------------|
          |         IRQ          |      SW1/5       |      SW1/6       |
          |----------------------+------------------+------------------|
          | » |       IRQ2       |        On        |        On        |
          |---+------------------+------------------+------------------|
          |   |       IRQ3       |        On        |       Off        |
          |---+------------------+------------------+------------------|
          |   |       IRQ4       |       Off        |        On        |
          |---+------------------+------------------+------------------|
          |   |       IRQ7       |       Off        |       Off        |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                FACTORY CONFIGURED SETTINGS                 |
          |------------------------------------------------------------|
          |            Switch            |           Setting           |
          |------------------------------+-----------------------------|
          |            SW1/1             |             Off             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |               MISCELLANEOUS TECHNICAL NOTES                |
          |------------------------------------------------------------|
          |   The location of SW1 is not specified in manufacturer's   |
          |                       documentation.                       |
          +------------------------------------------------------------+