
B & B ELECTRONICS

3PXCC4A

Card Type   Serial
Chipset     16550A
I/O Options Serial ports (4)
Data Bus    8/16 bit ISA

[Image]

                                CONNECTIONS

         Function            Label            Function            Label

  RS-232, RS-422, or           P1      RS-232, RS-422, or           P3
  RS-485 serial port 1                 RS-485 serial port 3

  RS-232, RS-422, or           P2      RS-232, RS-422, or           P4
  RS-485 serial port 2                 RS-485 serial port 4

                        USER CONFIGURABLE SETTINGS

                   Setting                      Label         Position

     Serial port 1 uses normal interrupt       JP5/A        Pins 1 & 2
      set by JP1                                               closed

      Serial port 1 uses shared interrupt       JP5/A        Pins 2 & 3
      set by JP1                                               closed

     Serial port 2 uses normal interrupt       JP5/B        Pins 1 & 2
      set by JP2                                               closed

      Serial port 2 uses shared interrupt       JP5/B        Pins 2 & 3
      set by JP1                                               closed

     Serial port 3 uses normal interrupt       JP5/C        Pins 1 & 2
      set by JP3                                               closed

      Serial port 3 uses shared interrupt       JP5/C        Pins 2 & 3
      set by JP1                                               closed

     Serial port 4 uses normal interrupt       JP5/D        Pins 1 & 2
      set by JP4                                               closed

      Serial port 4 uses shared interrupt       JP5/D        Pins 2 & 3
      set by JP1                                               closed

     Interrupt sharing disabled                 JP6         Pins 1 & 2
                                                               closed

      Interrupt sharing enabled                  JP6         Pins 2 & 3
                                                               closed

     RS-485 receiver disabled when             JP8/B        Pins 1 & 2
      transmitting on port 1                                   closed

      RS-485 receiver always enabled on         JP8/B        Pins 2 & 3
      port 1                                                   closed

      RS-422/485 termination enabled on         JP8/D        Pins 1 & 2
      port 1                                                   closed

      RS-422/485 termination disabled on        JP8/D        Pins 2 & 3
      port 1                                                   closed

     RS-485 receiver disabled when             JP10/B       Pins 1 & 2
      transmitting on port 2                                   closed

      RS-485 receiver always enabled on         JP10/B       Pins 2 & 3
      port 2                                                   closed

      RS-422/485 termination enabled on         JP10/D       Pins 1 & 2
      port 2                                                   closed

      RS-422/485 termination disabled on        JP10/D       Pins 2 & 3
      port 2                                                   closed

     RS-485 receiver disabled when             JP12/B       Pins 1 & 2
      transmitting on port 4                                   closed

      RS-485 receiver always enabled on         JP12/B       Pins 2 & 3
      port 4                                                   closed

                    USER CONFIGURABLE SETTINGS (CONT)

                   Setting                      Label         Position

      RS-422/485 termination enabled on         JP12/D       Pins 1 & 2
      port 4                                                   closed

      RS-422/485 termination disabled on        JP12/D       Pins 2 & 3
      port 4                                                   closed

     RS-485 receiver disabled when             JP14/B       Pins 1 & 2
      transmitting on port 3                                   closed

      RS-485 receiver always enabled on         JP14/B       Pins 2 & 3
      port 3                                                   closed

      RS-422/485 termination enabled on         JP14/D       Pins 1 & 2
      port 3                                                   closed

      RS-422/485 termination disabled on        JP14/D       Pins 2 & 3
      port 3                                                   closed

      Status register enabled                    JP15        Pins 1 & 2
                                                               closed

      Status register disabled                   JP15        Pins 2 & 3
                                                               closed

                        SERIAL PORT 1 CONFIGURATION

  Setting    JP7/A    JP7/B    JP7/C    JP7/D    JP8/A    JP8/B    JP8/C

  RS-232     Pins 2   Pins 2   Pins 2   Pins 2    N/A      N/A     Pins 1
              & 3      & 3      & 3      & 3                        & 2

  RS-422     Pins 1   Pins 1   Pins 1   Pins 1   Pins 2   Pins 2   Pins 2
              & 2      & 2      & 2      & 2      & 3      & 3      & 3

  RS-485     Pins 1   Pins 1   Pins 1   Pins 1   Pins 1    See     Pins 2
              & 2      & 2      & 2      & 2      & 2     note      & 3

            Note:For correct settings of JP8/B for RS-485 mode, see its
            entry in the User Configurable Settings table.

            Pins designated are in the closed position.

                        SERIAL PORT 2 CONFIGURATION

  Setting    JP9/A   JP9/B    JP9/C    JP9/D   JP10/A    JP10/B   JP10/C

  RS-232     Pins     Pins    Pins     Pins     N/A       N/A      Pins 1
             2 & 3   2 & 3    2 & 3    2 & 3                        & 2

  RS-422     Pins     Pins    Pins     Pins    Pins 2    Pins 2    Pins 2
             1 & 2   1 & 2    1 & 2    1 & 2    & 3       & 3       & 3

  RS-485     Pins     Pins    Pins     Pins    Pins 1     See      Pins 2
             1 & 2   1 & 2    1 & 2    1 & 2    & 2      note       & 3

            Note:For correct settings of JP10/B for RS-485 mode, see its
            entry in the User Configurable Settings table.

            Pins designated are in the closed position.

                        SERIAL PORT 3 CONFIGURATION

  Setting   JP13/A   JP13/B   JP13/C   JP13/D   JP14/A    JP14/B   JP14/C

  RS-232    Pins 2   Pins 2   Pins 2   Pins 2    N/A       N/A     Pins 1
             & 3      & 3      & 3      & 3                         & 2

  RS-422    Pins 1   Pins 1   Pins 1   Pins 1   Pins 2    Pins 2   Pins 2
             & 2      & 2      & 2      & 2      & 3       & 3      & 3

  RS-485    Pins 1   Pins 1   Pins 1   Pins 1   Pins 1     See     Pins 2
             & 2      & 2      & 2      & 2      & 2      note      & 3

            Note:For correct settings of JP14/B for RS-485 mode, see its
            entry in the User Configurable Settings table.

            Pins designated are in the closed position.

                        SERIAL PORT 4 CONFIGURATION

  Setting   JP11/A   JP11/B   JP11/C   JP11/D   JP12/A    JP12/B   JP12/C

  RS-232    Pins 2   Pins 2   Pins 2   Pins 2    N/A       N/A     Pins 1
             & 3      & 3      & 3      & 3                         & 2

  RS-422    Pins 1   Pins 1   Pins 1   Pins 1   Pins 2    Pins 2   Pins 2
             & 2      & 2      & 2      & 2      & 3       & 3      & 3

  RS-485    Pins 1   Pins 1   Pins 1   Pins 1   Pins 1     See     Pins 2
             & 2      & 2      & 2      & 2      & 2      note      & 3

            Note:For correct settings of JP12/B for RS-485 mode, see its
            entry in the User Configurable Settings table.

            Pins designated are in the closed position.

                       SERIAL PORT CLOCK MULTIPLIER

          Setting                    JP16B                  JP17B

          Normal (x1)              Closed                   Open

            Fast (x4)                Open                   Closed

                      SERIAL PORT INTERRUPT SELECTION

  Setting     JP1/A      JP1/B     JP1/C     JP1/D      JP1/E     JP1/F

  IR/FONT>    Closed     Open      Open       Open      Open       Open

    IRQ3       Open     Closed     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

   IRQ10       Open      Open      Open       Open      Open       Open

   IRQ11       Open      Open      Open       Open      Open       Open

   IRQ12       Open      Open      Open       Open      Open       Open

   IRQ14       Open      Open      Open       Open      Open       Open

   IRQ15       Open      Open      Open       Open      Open       Open

                  SERIAL PORT INTERRUPT SELECTION (CONT)

   Setting       JP1/G       JP1/H       JP1/I       JP1/J        JP1/K

   IR/FONT>       Open        Open        Open        Open        Open

     IRQ3         Open        Open        Open        Open        Open

     IRQ4         Open        Open        Open        Open        Open

     IRQ5         Open        Open        Open        Open        Open

     IRQ6         Open        Open        Open        Open        Open

     IRQ7         Open        Open        Open        Open        Open

    IRQ10        Closed       Open        Open        Open        Open

    IRQ11         Open       Closed       Open        Open        Open

    IRQ12         Open        Open       Closed       Open        Open

    IRQ14         Open        Open        Open       Closed       Open

    IRQ15         Open        Open        Open        Open       Closed

            Note:JP1 sets the interrupt for port 1. The settings for JP2
            through JP4 are identical and set the interrupts for ports 2
            through 4, respectively.

                       SERIAL PORT ADDRESS SELECTION

  Setting     SW1/1    SW1/2    SW1/3   SW1/4    SW1/5    SW1/6    SW1/7

    000h       On       On       On       On       On       On       On

    008h       Off      On       On       On       On       On       On

    010h       On       Off      On       On       On       On       On

    018h       Off      Off      On       On       On       On       On

    020h       On       On       Off      On       On       On       On

    2E8h       Off      On       Off     Off      Off       On      Off
  (COM4:)

    2F8h       Off      Off      Off     Off      Off       On      Off
  (COM2:)

    3D8h       Off      Off      On      Off      Off      Off      Off

    3E0h       On       On       Off     Off      Off      Off      Off

    3E8h       Off      On       Off     Off      Off      Off      Off
  (COM3:)

    3F0h       On       Off      Off     Off      Off      Off      Off

    3F8h       Off      Off      Off     Off      Off      Off      Off
  (COM1:)

            Note: A total of 128 base address settings are available. The
            switches are a binary representation of the decimal memory
            addresses. SW1/7 is the Most Significant Bit and switch SW1/1
            is the Least Significant Bit. The switches have the following
            decimal values: SW1/7=512, SW1/6=256, SW1/5=128, SW1/4=64,
            SW1/3=32, SW1/2=16, SW1/1=8. Turn off the switches and add
            the values of the switches that are off to obtain the correct
            memory address. (Off=1, On=0)

            SW1 sets the address for port 1. The settings for SW2 through
            SW4 are identical and set the addresses for ports 2 through
            4, respectively.

