
AMERICAN RESEARCH CORPORATION

PCN-002

NIC Type      Ethernet
Transfer Rate 10Mbps
Data Bus      8-bit ISA
Topology      Star

              Linear Bus
Wiring Type   RG62A/U 93ohm coaxial
Boot ROM      Available

[Image]

                               NODE ADDRESS

  Node   SW1/1    SW1/2   SW1/3   SW1/4    SW1/5   SW1/6    SW1/7   SW1/8

   0       -       -        -       -       -        -       -        -

   1      Off      On      On      On       On      On       On      On

   2      On      Off      On      On       On      On       On      On

   3      Off     Off      On      On       On      On       On      On

   4      On       On      Off     On       On      On       On      On

  251     Off     Off      On      Off     Off      Off     Off      Off

  252     On       On      Off     Off     Off      Off     Off      Off

  253     Off      On      Off     Off     Off      Off     Off      Off

  254     On      Off      Off     Off     Off      Off     Off      Off

  255     Off     Off      Off     Off     Off      Off     Off      Off

            Notes: Node address 0 is used for messaging between nodes and
            must not be used. A total of 255 node address settings are
            available. The switches are a binary representation of the
            decimal node addresses. Switch 1 is the Least Significant Bit
            and switch 8 is the Most Significant Bit. The switches have
            the following decimal values: switch 1=1, 2=2, 3=4, 4=8,
            5=16, 6=32, 7=64, 8=128. Turn off the switches and add the
            values of the off switches to obtain the correct node
            address. (On=0, Off=1)

                             INTERRUPT REQUEST

    IRQ         JP1A         JP1B        JP1C         JP1D        JP1E

        2      Closed        Open        Open         Open        Open

       3       Open        Closed       Open         Open        Open

        4       Open         Open       Closed        Open        Open

        5       Open         Open        Open        Closed       Open

        7       Open         Open        Open         Open       Closed

                             I/O BASE ADDRESS

   Address      SW2/1     SW2/2     SW2/3     SW2/4     SW2/5     SW2/6

       200h      Off       On        On        On        On         On

       210h      Off       On        On        On        On        Off

       220h      Off       On        On        On        Off        On

       230h      Off       On        On        On        Off       Off

       240h      Off       On        On        Off       On         On

       250h      Off       On        On        Off       On        Off

       260h      Off       On        On        Off       Off        On

       270h      Off       On        On        Off       Off       Off

       280h      Off       On        Off       On        On         On

       290h      Off       On        Off       On        On        Off

       2A0h      Off       On        Off       On        Off        On

       2B0h      Off       On        Off       On        Off       Off

       2C0h      Off       On        Off       Off       On         On

       2D0h      Off       On        Off       Off       On        Off

      2E0h      Off       On        Off       Off       Off        On

       2F0h      Off       On        Off       Off       Off       Off

       300h      Off       Off       On        On        On         On

       310h      Off       Off       On        On        On        Off

       320h      Off       Off       On        On        Off        On

       330h      Off       Off       On        On        Off       Off

       340h      Off       Off       On        Off       On         On

       350h      Off       Off       On        Off       On        Off

       360h      Off       Off       On        Off       Off        On

       370h      Off       Off       On        Off       Off       Off

       380h      Off       Off       Off       On        On         On

       390h      Off       Off       Off       On        On        Off

       3A0h      Off       Off       Off       On        Off        On

       3B0h      Off       Off       Off       On        Off       Off

       3C0h      Off       Off       Off       Off       On         On

       3D0h      Off       Off       Off       Off       On        Off

       3E0h      Off       Off       Off       Off       Off        On

       3F0h      Off       Off       Off       Off       Off       Off

                             BOOT ROM ADDRESS

  Base Address   Boot ROM Address     SW2/7    SW2/8     SW2/9    SW2/10

     C0000h           C8000h           Off      Off        On       On

     D0000h           D8000h           Off      Off        On       Off

     E0000h           E8000h           Off      Off       Off       On

  FACTORY CONFIGURED SETTINGS

     Jumper         Setting

      JP1F            Open

      JP1G            Open

