COMPEX, INC.

4-PORT ANET16-4, ANET16-42

NIC Type      ARCnet
Transfer Rate 2.5Mbps
Data Bus      16-bit ISA
Topology      Star (ANET16-4)

              Linear Bus (ANET16-42)
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)

                        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

                           TIMEOUT CONFIGURATION

        Response Time                  JP1                    JP2

  »           74.7µs                   Open                  Open

             283.4µs                   Open                 Closed

              561.8µs                 Closed                 Open

             1118.6µs                 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

                              MODE SELECTION

                 Mode                                  JP3

  »                Normal                 As shown in diagram on previous
                                                       page

                  Special                 As shown on diagram on previous
                                                       page

       Note:In normal mode, any 32KB memory segment in the system may be
       selected. For an AT, however, with

                             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 right to left in the diagram.

                                    INTERRUPT REQUEST

   IRQ      JP10     JP11     JP12     JP13    JP14     JP17     JP18     JP19     JP20

  »   2/9  Closed    Open     Open     Open    Open     Open     Open     Open     Open

      3     Open    Closed    Open     Open    Open     Open     Open     Open     Open

      4     Open     Open    Closed    Open    Open     Open     Open     Open     Open

      5     Open     Open     Open    Closed   Open     Open     Open     Open     Open

      7     Open     Open     Open     Open    Closed   Open     Open     Open     Open

      10    Open     Open     Open     Open    Open     Closed   Open     Open     Open

      11    Open     Open     Open     Open    Open     Open     Closed   Open     Open

      12    Open     Open     Open     Open    Open     Open     Open     Closed   Open

      15    Open     Open     Open     Open    Open     Open     Open     Open    Closed

  Note:Jumpers JP17 to JP20 count from right to left in the diagram.

                             BOOT ROM ADDRESS

          Address                     JP15                   JP16

             C0000h                  Closed                 Closed

             C8000h                   Open                  Closed

             CC000h                   Open                   Open

  »          D0000h                  Closed                  Open