(TXT) View Source
       
       # INDUSTRIAL COMPUTER SOURCE
       
          ULTRA-485
       
          Card Type           Serial card                                
          Chip Set            Unidentified                               
          I/O Options         Serial port                                
          Data Bus            8-bit ISA                                  
       
 (IMG) IMG 1
          
       
          +------------------------------------------------------------+
          |                        CONNECTIONS                         |
          |------------------------------------------------------------|
          |            Function             |          Label           |
          |---------------------------------+--------------------------|
          | Serial port via DB-25 connector |            P1            |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 USER CONFIGURABLE SETTINGS                 |
          |------------------------------------------------------------|
          |              Function               | Label |   Position   |
          |-------------------------------------+-------+--------------|
          | » | Port mode select normal         |  E2   |  Pins 1 & 2  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | Port mode select shared         |  E2   |  Pins 2 & 3  |
          |   |                                 |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | Port mode select shared with    |  E2   |  Pins 3 & 4  |
          |   | pull down resistor              |       |    closed    |
          |---+---------------------------------+-------+--------------|
          |   | 100 ohm termination enabled     | SW2/1 |      On      |
          |---+---------------------------------+-------+--------------|
          |   | 100 ohm termination disabled    | SW2/1 |     Off      |
          |---+---------------------------------+-------+--------------|
          |   | 1K ohm pull up resistor enabled | SW2/2 |      On      |
          |---+---------------------------------+-------+--------------|
          |   | 1K ohm pull up resistor         | SW2/2 |     Off      |
          |   | disabled                        |       |              |
          |---+---------------------------------+-------+--------------|
          |   | 1K ohm pull down resistor       | SW2/3 |      On      |
          |   | enabled                         |       |              |
          |---+---------------------------------+-------+--------------|
          |   | 1K ohm pull down resistor       | SW2/3 |     Off      |
          |   | disabled                        |       |              |
          |---+---------------------------------+-------+--------------|
          |   | Connects TX+ to RX+ for RS-485  | SW2/4 | Unidentified |
          |   | two wire operation              |       |              |
          |---+---------------------------------+-------+--------------|
          |   | Connects TX- to RX- for RS-485  | SW2/5 | Unidentified |
          |   | two wire operation              |       |              |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                     ADDRESS SELECTION                      |
          |------------------------------------------------------------|
          |  Setting   |   SW1/1   |   SW1/2   |   SW1/3   |   SW1/4   |
          |------------+-----------+-----------+-----------+-----------|
          |  Disabled  |    On     |    On     |    On     |    On     |
          |------------+-----------+-----------+-----------+-----------|
          |    3F8     |    On     |    On     |    On     |    Off    |
          |------------+-----------+-----------+-----------+-----------|
          |    2F8     |    On     |    On     |    Off    |    On     |
          |------------+-----------+-----------+-----------+-----------|
          |    3E8     |    On     |    On     |    Off    |    Off    |
          |------------+-----------+-----------+-----------+-----------|
          |    2E8     |    On     |    Off    |    On     |    On     |
          |------------+-----------+-----------+-----------+-----------|
          |    3220    |    On     |    Off    |    On     |    Off    |
          |------------+-----------+-----------+-----------+-----------|
          |    3228    |    On     |    Off    |    Off    |    On     |
          |------------+-----------+-----------+-----------+-----------|
          |    4220    |    On     |    Off    |    Off    |    Off    |
          |------------+-----------+-----------+-----------+-----------|
          |    4228    |    Off    |    On     |    On     |    On     |
          |------------+-----------+-----------+-----------+-----------|
          |    238     |    Off    |    On     |    On     |    Off    |
          |------------+-----------+-----------+-----------+-----------|
          |    300     |    Off    |    On     |    Off    |    On     |
          |------------+-----------+-----------+-----------+-----------|
          |    308     |    Off    |    On     |    Off    |    Off    |
          |------------+-----------+-----------+-----------+-----------|
          |    280     |    Off    |    Off    |    On     |    On     |
          |------------+-----------+-----------+-----------+-----------|
          |    288     |    Off    |    Off    |    On     |    Off    |
          |------------+-----------+-----------+-----------+-----------|
          |    290     |    Off    |    Off    |    Off    |    On     |
          |------------+-----------+-----------+-----------+-----------|
          |    298     |    Off    |    Off    |    Off    |    Off    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              SERIAL PORT INTERRUPT SELECTION               |
          |------------------------------------------------------------|
          |            IRQ             |              E1               |
          |----------------------------+-------------------------------|
          |    |           2           |       Pins 1 & 2 closed       |
          |----+-----------------------+-------------------------------|
          |    |           3           |       Pins 3 & 4 closed       |
          |----+-----------------------+-------------------------------|
          | »  |           4           |       Pins 5 & 6 closed       |
          |----+-----------------------+-------------------------------|
          |    |           5           |       Pins 7 & 8 closed       |
          |----+-----------------------+-------------------------------|
          |    |           7           |      Pins 9 & 10 closed       |
          |----+-----------------------+-------------------------------|
          |    |          10           |      Pins 11 & 12 closed      |
          |----+-----------------------+-------------------------------|
          |    |          11           |      Pins 13 & 14 closed      |
          |----+-----------------------+-------------------------------|
          |    |          12           |      Pins 15 & 16 closed      |
          |----+-----------------------+-------------------------------|
          |    |          15           |      Pins 17 & 18 closed      |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |              RS-485 DRIVER CIRCUIT SELECTION               |
          |------------------------------------------------------------|
          |              Setting              |           E5           |
          |-----------------------------------+------------------------|
          |      Driver enabled/disabled      |   Pins 1 & 2 closed    |
          |-----------------------------------+------------------------|
          | Driver enabled by UART RTS signal |   Pins 3 & 4 closed    |
          |-----------------------------------+------------------------|
          |       Driver always enabled       |   Pins 5 & 6 closed    |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |             RS-485 RECEIVER CIRCUIT SELECTION              |
          |------------------------------------------------------------|
          |               Setting               |          E3          |
          |-------------------------------------+----------------------|
          |      Receiver enabled/disabled      |  Pins 1 & 2 closed   |
          |-------------------------------------+----------------------|
          | Receiver enabled by UART RTS signal |  Pins 3 & 4 closed   |
          |-------------------------------------+----------------------|
          |       Receiver always enabled       |  Pins 5 & 6 closed   |
          +------------------------------------------------------------+
       
          +------------------------------------------------------------+
          |                 EIA-530/SIO-485 SELECTION                  |
          |------------------------------------------------------------|
          | Setting |                        E4                        |
          |---------+--------------------------------------------------|
          | EIA-530 |  Pins 1 & 2, 3 & 4, 5 & 6, 7 & 8, 9 & 10 closed  |
          |---------+--------------------------------------------------|
          | SIO-485 | Pins 11 & 12, 13 & 14, 15 & 16, 17 & 18, 19 & 20 |
          |         |                      closed                      |
          +------------------------------------------------------------+