
THOMAS-CONRAD CORPORATION

TC6242-AIO

NIC Type      ARCnet
Transfer Rate 2.5Mbps
Data Bus      8-bit ISA
Topology      Star

              Linear Bus
Wiring Type   RG62A/U, 93ohm coaxial

              Shielded twisted pair

              Unshielded twisted pair

              Twisted pair plus
Boot ROM      Available

[Image]

                               NODE ADDRESS

  Node   SW2/1    SW2/2   SW2/3   SW2/4    SW2/5   SW2/6    SW2/7   SW2/8

   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

  Note: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          JP1         JP2          JP3         JP4          JP5

       2       Open         Open        Open         Open       Closed

        3      Closed        Open        Open         Open        Open

        4       Open        Closed       Open         Open        Open

        5       Open         Open       Closed        Open        Open

        7       Open         Open        Open        Closed       Open

                  RESPONSE AND RECONFIGURATION TIMEOUTS

              Setting                       JP6                JP7

      Network cable distance under        Open               Open
               20,000 feet

          Network cable distance          Closed             Closed
        greater than 20,000 feet

      Note :All NICs on the network must have this option set the same

                                CABLE TYPE

      Type         JP8      JP9    JP10     JP12    JP13    JP14    JP15

        Coax      Pins     Pins    Pins    Pins    Pins     Pins    Pins
        (Star)     1 & 2   1 & 2   1 & 2    2 & 3   1 & 2   1 & 2   1 & 2

         Coax      Pins     Pins    Pins    Pins    Pins     Pins    Pins
        (Bus)      1 & 2   1 & 2   1 & 2    2 & 3   2 & 3   1 & 2   1 & 2

        Twisted    Pins     Pins    Pins    Pins    Pins     Pins    Pins
        pair+      2 & 3   2 & 3   2 & 3    1 & 2   1 & 2   2 & 3   2 & 3

        Twisted    Pins     Pins    Pins    Pins    Pins     Pins    Pins
         pair      1 & 2   1 & 2   1 & 2    1 & 2   2 & 3   2 & 3   2 & 3

      Note : Pins designated should be in the closed position

                            BASE MEMORY ADDRESS

     Memory      SW1/1     SW1/2     SW1/3     SW1/4    SW1/5      SW1/6
    Address

      D000h      Off       Off       On        Off       On        On

       C000h      Off       Off       On        On        On        On

       C400h      Off       Off       On        On        On        Off

       C800h      Off       Off       On        On       Off        On

       CC00h      Off       Off       On        On       Off        Off

       D400h      Off       Off       On        Off       On        Off

       D800h      Off       Off       On        Off      Off        On

       DC00h      Off       Off       On        Off      Off        Off

                            COMPATABILITY MODE

                 Setting                                SW1/8

                Enhanced mode                           On

                Compatible mode                          Off

  Note: Enhanced mode optimizes performance and minimizes conflicts of
  your hardware by using a Thomas-Conrad

                             I/O BASE ADDRESS

   Address      SW3/3     SW3/4     SW3/5     SW3/6     SW3/7     SW3/8

      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

  FACTORY CONFIGURED SETTINGS - DO NOT ALTER

        Switch                 Setting

         SW3/1                    On

         SW3/2                   Off

                        DIAGNOSTIC LED(S)

    LED       Status                   Condition

   LED1         On        Data is being transmitted/received.

   LED1        Off      Data is not being transmitted/received.

