TIARA COMPUTER SYSTEMS, INC.

ARCNET LanCard PC

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

   2      Off     Off      Off     Off     Off      Off      On      Off

   3      Off     Off      Off     Off     Off      Off      On      On

   4      Off     Off      Off     Off     Off      On      Off      Off

  251     On       On      On      On       On      Off      On      On

  252     On       On      On      On       On      On      Off      Off

  253     On       On      On      On       On      On      Off      On

  254     On       On      On      On       On      On       On      Off

  255     On       On      On      On       On      On       On      On

  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 on the
       switches and add the values of the on switches to obtain the
       correct node address. (On=1, off=0)

                                 BOOT ROM

                 Setting                                JP7

  »               Disabled                             Open

                   Enabled                            Closed

                             INTERRUPT REQUEST

   IRQ        JP1       JP2        JP3       JP4        JP5        JP6

  »   2     Closed      Open      Open       Open       Open       Open

      3      Open      Closed     Open       Open       Open       Open

      4      Open       Open     Closed      Open       Open       Open

      5      Open       Open      Open      Closed      Open       Open

      6      Open       Open      Open       Open      Closed      Open

      7      Open       Open      Open       Open       Open      Closed

                     RIM BUFFER ADDRESS CONFIGURATION

    Buffer Address           JP8              JP9              JP10

          C0000h            Closed           Closed           Closed

          C4000h             Open            Closed           Closed

          CC000h            Closed            Open            Closed

  »       D0000h             Open             Open            Closed

          D4000h            Closed           Closed            Open

          D8000h             Open            Closed            Open

          DC000h            Closed            Open             Open

          E0000h             Open             Open             Open

                             I/O BASE ADDRESS

       Address             JP11              JP12              JP13

          260h            Closed            Closed            Closed

          290h             Open             Closed            Closed

  »       2E0h            Closed             Open             Closed

          2F0h             Open              Open             Closed

          300h            Closed            Closed             Open

          350h             Open             Closed             Open

          380h            Closed             Open              Open

          3E0h             Open              Open              Open