INDUSTRIAL COMPUTER SOURCE

ULTRA-485

Card Type   Serial card
Chip Set    Unidentified
I/O Options Serial port
Data Bus    8-bit ISA

[Image]

                             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 pull       E2       Pins 3 & 4 closed
      down resistor

      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 disabled       SW2/2            Off

      1K ohm pull down resistor enabled      SW2/3             On

      1K ohm pull down resistor disabled     SW2/3            Off

      Connects TX+ to RX+ for RS-485 two     SW2/4        Unidentified
      wire operation

      Connects TX- to RX- for RS-485 two     SW2/5        Unidentified
      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