
ADDTRON TECHNOLOGY COMPANY, LTD.

ARC 120TP

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

              Linear bus
Wiring Type   Unshielded twisted pair

              RG-62A/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

  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)

                                 BOOT ROM

                 Setting                                JP1A

                  Disabled                             Open

                   Enabled                             Closed

            CABLE LENGTH AND RESPONSE/RECONFIGURATION TIMEOUTS

  Cable Length      Response     Reconfiguration       JP1B       JP1C
                     Time

      < 20,000     74.7s            840ms            Open       Open
        feet

       > 20,000     283.4s           1680ms           Open      Closed
        feet

       > 20,000     561.8s           1680ms          Closed      Open
        feet

       > 20,000     1118.6s          1680ms          Closed     Closed
        feet

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

                             INTERRUPT REQUEST

     IRQ          JP1D        JP1E        JP1F        JP1G        JP1H

      2/9       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

                              CONNECTOR TYPE

           Type                     JP2A                    JP2B

  Unshielded twisted pair          Closed                   Open

   RG62A/U 93ohm coaxial            Open                   Closed

                                           ONBOARD TERMINATOR

                       Setting                                               JP2C

                        Enabled                                            Closed

                         Disabled                                            Open

                Notes:If the card is on either end of a linear bus network segment, the onboard
                terminator may be used instead of using an external terminator.

                             I/O BASE ADDRESS

         Address              SW2/6            SW2/7            SW2/8

          260-26Fh              On               On              On

          290-29Fh             Off               On              On

         2E0-2EFh              On              Off              On

          2F0-2FFh             Off              Off              On

          300-30Fh              On               On              Off

          350-35Fh             Off               On              Off

          380-38Fh              On              Off              Off

          3E0-3EFh             Off              Off              Off

                BASE MEMORY ADDRESS &AMP; BOOT ROM ADDRESS

   Base Address        Boot ROM     SW2/1   SW2/2   SW2/3   SW2/4   SW2/5
                       Address

      C0000-C07FFh   C2000-C3FFFh    On      On      On      On      On

      C0800-C0FFFh   C2000-C3FFFh   Off      On      On      On      On

      C1000-C17FFh   C2000-C3FFFh    On     Off      On      On      On

      C1800-C1FFFh   C2000-C3FFFh   Off     Off      On      On      On

      C4000-C47FFh   C6000-C7FFFh    On      On     Off      On      On

      C4800-C4FFFh   C6000-C7FFFh   Off      On     Off      On      On

      C5000-C57FFh   C6000-C7FFFh    On     Off     Off      On      On

      C5800-C5FFFh   C6000-C7FFFh   Off     Off     Off      On      On

      CC000-CC7FFh   CE000-CFFFFh    On      On      On     Off      On

      CC800-CCFFFh   CE000-CFFFFh   Off      On      On     Off      On

      CD000-CD7FFh   CE000-CFFFFh    On     Off      On     Off      On

      CD800-CDFFFh   CE000-CFFFFh   Off     Off      On     Off      On

     D0000-D07FFh   D2000-D3FFFh    On      On     Off     Off      On

      D0800-D0FFFh   D2000-D3FFFh   Off      On     Off     Off      On

      D1000-D17FFh   D2000-D3FFFh    On     Off     Off     Off      On

      D1800-D1FFFh   D2000-D3FFFh   Off     Off     Off     Off      On

      D4000-D47FFh   D6000-D7FFFh    On      On      On      On      Off

      D4800-D4FFFh   D6000-D7FFFh   Off      On      On      On      Off

      D5000-D57FFh   D6000-D7FFFh    On     Off      On      On      Off

      D5800 D5FFFh   D6000-D7FFFh   Off     Off      On      On      Off

      D8000-D87FFh   DA000-DBFFFh    On      On     Off      On      Off

      D8800-D8FFFh   DA000-DBFFFh   Off      On     Off      On      Off

      D9000-D97FFh   DA000-DBFFFh    On     Off     Off      On      Off

      D9800-D9FFFh   DA000-DBFFFh   Off     Off     Off      On      Off

      DC000-DC7FFh   DE000-DFFFFh    On      On      On     Off      Off

      DC800-DCFFFh   DE000-DFFFFh   Off      On      On     Off      Off

      DD000-DD7FFh   DE000-DFFFFh    On     Off      On     Off      Off

      DD800-DDFFFh   DE000-DFFFFh   Off     Off      On     Off      Off

      E0000-E07FFh   E2000-E3FFFh    On      On     Off     Off      Off

      E0800-E0FFFh   E2000-E3FFFh   Off      On     Off     Off      Off

      E1000-E17FFh   E2000-E3FFFh    On     Off     Off     Off      Off

      E1800-E1FFFh   E2000-E3FFFh   Off     Off     Off     Off      Off

                             DIAGNOSTIC LED(S)

       Color              Status                    Condition

       Green                On           Twisted pair network connection
                                                     is good

       Green               Off           Twisted pair network connection
                                                    is broken

        Red                 On             Data is being transmitted or
                                                    received.

        Red                Off           Data is not being transmitted or
                                                    received.

