(TXT) View Source
       
       # DIGITAL COMMUNICATION ASSOCIATES, INC.
       
          SYNCHRONOUS COMMUNICATIONS ADAPTER
       
          Card Type          Serial controller                           
          Chipset/Controller Zilog 8085                                  
          I/O Options        Serial port                                 
          Maximum DRAM       N/A                                         
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |            Purpose            |          Location          |
          |-------------------------------+----------------------------|
          | Serial port                   |            CN1             |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 I/O ADDRESS CONFIGURATION                  |
          |------------------------------------------------------------|
          | Address |  J2A   |  J2B   |  J2C   |  J2D  |  J2E  |  J2F  |
          |---------+--------+--------+--------+-------+-------+-------|
          |» | 380h |  Open  |  Open  |  Open  | Open  |Closed | Open  |
          |--+------+--------+--------+--------+-------+-------+-------|
          |  | 300h | Closed |  Open  |  Open  | Open  | Open  | Open  |
          |--+------+--------+--------+--------+-------+-------+-------|
          |  | 308h |  Open  | Closed |  Open  | Open  | Open  | Open  |
          |--+------+--------+--------+--------+-------+-------+-------|
          |  | 340h |  Open  |  Open  | Closed | Open  | Open  | Open  |
          |--+------+--------+--------+--------+-------+-------+-------|
          |  | 348h |  Open  |  Open  |  Open  |Closed | Open  | Open  |
          |--+------+--------+--------+--------+-------+-------+-------|
          |  | 388h |  Open  |  Open  |  Open  | Open  | Open  |Closed |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              SLOT NUMBER & PC/XT SETTINGS              |
          |------------------------------------------------------------|
          |                Setting                 |        J1         |
          |----------------------------------------+-------------------|
          | » | Card in slot other than slot 8 on  | Pins 2 & 3 closed |
          |   |               PC/XT                |                   |
          |---+------------------------------------+-------------------|
          |   |      Card in slot 8 of PC/XT       | Pins 1 & 2 closed |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                      INTERRUPT SELECT                      |
          |------------------------------------------------------------|
          |  IRQ   |  J5A   |  J5B   |  J5C   |  J5D   |  J5E  |  J5F  |
          |--------+--------+--------+--------+--------+-------+-------|
          |»| IRQ3 |  Open  | Closed |  Open  |  Open  | Open  | Open  |
          |-+------+--------+--------+--------+--------+-------+-------|
          | | IRQ2 | Closed |  Open  |  Open  |  Open  | Open  | Open  |
          |-+------+--------+--------+--------+--------+-------+-------|
          | | IRQ4 |  Open  |  Open  | Closed |  Open  | Open  | Open  |
          |-+------+--------+--------+--------+--------+-------+-------|
          | | IRQ5 |  Open  |  Open  |  Open  | Closed | Open  | Open  |
          |-+------+--------+--------+--------+--------+-------+-------|
          | | IRQ6 |  Open  |  Open  |  Open  |  Open  |Closed | Open  |
          |-+------+--------+--------+--------+--------+-------+-------|
          | | IRQ7 |  Open  |  Open  |  Open  |  Open  | Open  |Closed |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                FACTORY CONFIGURED SETTINGS                 |
          |------------------------------------------------------------|
          |           Jumper           |            Setting            |
          |----------------------------+-------------------------------|
          |             J3             |       Pins 1 & 2 closed       |
          |----------------------------+-------------------------------|
          |             J4             |       Pins 1 & 2 closed       |
          +------------------------------------------------------------+