
COMPEX, INC.

ANET16-1A

NIC Type      ARCnet
Transfer Rate 2.5Mbps
Data Bus      16-bit ISA
Topology      Star

              Linear Bus
Wiring Type   Shielded/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)

                             INTERRUPT REQUEST

     IRQ          JP1         JP2         JP3         JP4          JP5

      2/9       Open        Open         Open        Open       Closed

        3        Open        Open         Open       Closed       Open

        4        Open        Open        Closed       Open        Open

        5        Open       Closed        Open        Open        Open

        7       Closed       Open         Open        Open        Open

                                I/O ADDRESS

       Address              JP6               JP7               JP8

          260h            Closed            Closed            Closed

          290h            Closed            Closed             Open

         2E0h            Closed             Open             Closed

          2F0h            Closed             Open              Open

          300h             Open             Closed            Closed

          350h             Open             Closed             Open

          380h             Open              Open             Closed

          3E0h             Open              Open              Open

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

                                 BOOT ROM

                 Setting                               JP14

                 Disabled                             Open

                   Enabled                            Closed

                     BASE ADDRESS AND BOOT ROM ADDRESS

  Address     Boot ROM     JP9       JP10      JP11      JP12      JP13
              Address

  C0000h      C2000h      Closed    Closed    Closed    Closed    Closed

  C4000h      C6000h      Closed    Closed     Open     Closed    Closed

  CC000h      CE000h      Closed     Open     Closed    Closed    Closed

  D0000h      D2000h      Closed     Open      Open     Closed    Closed

  D4000h      D6000h       Open     Closed    Closed    Closed    Closed

  D8000h      DA000h       Open     Closed     Open     Closed    Closed

  DC000h      DE000h       Open      Open     Closed    Closed    Closed

  E0000h      E2000h       Open      Open      Open     Closed    Closed

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

                                WAIT STATE

                 Setting                                JP15

         Zero wait states disabled                     Open

           Zero wait states enabled                    Closed

  Note:If Zero wait states are enabled, IOCHRDY (JP20) must be disabled.

                                CABLE TYPE

              Type                  Topology        JP16          JP17

         RG62A/U 93ohm with          Star        Pins 1 & 2     Closed
             terminator                            Closed

        RG62A/U 93ohm without          Bus          Open         Closed
             terminator

         Shielded/Unshielded           Bus        Pins 2 & 3      Open
            twisted pair                           Closed

                             I/O CHANNEL READY

                 Status                                 JP20

          IOCHRDY signal disabled                      Open

            IOCHRDY signal enabled                     Closed

  Note:If IOCHRDY signal is enabled, Zero wait state (JP15) must be
  disabled. If optional PROM is installed,

