
COMPEX, INC.

ANET-4, ANET-42

NIC Type      ARCnet
Transfer Rate 2.5Mbps
Data Bus      8-bit ISA
Topology      Star (ANET-4)

              Linear Bus (ANET-42)
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      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)

                           TIMEOUT CONFIGURATION

        Response Time                  JP1                    JP2

             74.7s                   Open                  Open

             283.4s                   Open                 Closed

              561.8s                 Closed                 Open

             1118.6s                 Closed                Closed

  Note:Timeout is the time required for the network signal to make a
  complete trip around the network. Using a
  longer than necessary timeout will result in network degradation

                             I/O BASE ADDRESS

   Address      JP4        JP5       JP6        JP7       JP8       JP9

      260h     Closed     Open       Open     Closed     Closed     Open

      280h     Closed    Closed     Closed     Open      Closed     Open

     2E0h     Closed     Open       Open      Open      Closed     Open

      2F0h      Open      Open       Open      Open      Closed     Open

      300h     Closed    Closed     Closed    Closed      Open      Open

      360h     Closed     Open       Open     Closed      Open      Open

  Note:Jumpers count from the right to left in the diagram.

                             INTERRUPT REQUEST

    IRQ         JP10         JP11        JP12         JP13        JP14

       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

                             BOOT ROM ADDRESS

     Address         JP15        JP16         JP17       JP18      JP19

       C0000h       Closed      Closed       Closed      Open      Open

       C8000h        Open       Closed       Closed      Open      Open

       CC000h        Open        Open        Closed      Open      Open

      D0000h       Closed       Open        Closed      Open      Open

  Note:Jumpers count from the right to left in the diagram.

                        DIAGNOSTIC LED(S)

    LED       Color      Status              Condition

   LED1        Red         On        Activity detected on CON1

   LED1        Red         Off      No activity detected on CON1

   LED2        Red         On        Activity detected on CON2

   LED2        Red         Off      No activity detected on CON2

   LED3        Red         On        Activity detected on CON3

   LED3        Red         Off      No activity detected on CON3

   LED4        Red         On        Activity detected on CON4

   LED4        Red         Off      No activity detected on CON4

