
D-LINK

DA-120

NIC Type      ARCnet
Transfer Rate 2.5Mbps
Data Bus      8-bit ISA
Topology      Linear Bus
Wiring Type   Unshielded twisted pair
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     Off      Off     Off     Off      Off     Off      On

   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=128, 2=64, 3=32, 4=16, 5=8, 6=4, 7=2, 8=1. Turn on the
       switches and add the values of the on switches to obtain the
       correct node address. (On=1, Off=0)

                        INTERRUPT REQUEST

    IRQ       JP1A       JP1B       JP1C       JP1D       JP1E

     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

                             I/O BASE ADDRESS

      Address              JP2A              JP2B              JP2C

          260h          PIns 2 & 3        PIns 2 & 3        PIns 2 & 3
                          closed            closed            closed

          290h          PIns 2 & 3        PIns 2 & 3        Pins 1 & 2
                          closed            closed            closed

         2E0h          PIns 2 & 3        Pins 1 & 2        PIns 2 & 3
                          closed            closed            closed

          300h          Pins 1 & 2        PIns 2 & 3        PIns 2 & 3
                          closed            closed            closed

          350h          Pins 1 & 2        PIns 2 & 3        Pins 1 & 2
                          closed            closed            closed

          380h          Pins 1 & 2        Pins 1 & 2        PIns 2 & 3
                          closed            closed            closed

          3E0h          Pins 1 & 2        Pins 1 & 2        Pins 1 & 2
                          closed            closed            closed

                             RESPONSE TIMEOUTS

       Response Time                 JP4A                   JP4B

             78s            Pins 1 & 2 closed       PIns 1 & 2 closed

             285s            Pins 1 & 2 closed       PIns 2 & 3 closed

             563s            PIns 2 & 3 closed       PIns 1 & 2 closed

             1130s           PIns 2 & 3 closed       PIns 2 & 3 closed

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

                                 BOOT ROM

                Setting                                 JP5

                 Disabled                       Pins 2 & 3 closed

                   Enabled                       PIns 1 & 2 closed

                  BASE MEMORY ADDRESS & BOOT ROM ADDRESS

      Base        Boot ROM    JP3A     JP3B     JP3C     JP3D      JP3E

       C0000h     C2000h     Pins 2   Pins 2    Pins 2   Pins 2    Pins 2
                              & 3      & 3       & 3      & 3       & 3

       C0800h     C2000h     Pins 1   Pins 2    Pins 2   Pins 2    Pins 2
                              & 2      & 3       & 3      & 3       & 3

       C1000h     C2000h     Pins 2   Pins 1    Pins 2   Pins 2    Pins 2
                              & 3      & 2       & 3      & 3       & 3

       C1800h     C2000h     Pins 1   Pins 1    Pins 2   Pins 2    Pins 2
                              & 2      & 2       & 3      & 3       & 3

       C4000h     C6000h     Pins 2   Pins 2    Pins 1   Pins 2    Pins 2
                              & 3      & 3       & 2      & 3       & 3

       C4800h     C6000h     Pins 1   Pins 2    Pins 1   Pins 2    Pins 2
                              & 2      & 3       & 2      & 3       & 3

       C5000h     C6000h     Pins 2   Pins 1    Pins 1   Pins 2    Pins 2
                              & 3      & 2       & 2      & 3       & 3

       C5800h     C6000h     Pins 1   Pins 1    Pins 1   Pins 2    Pins 2
                              & 2      & 2       & 2      & 3       & 3

       CC000h     CE000h     Pins 2   Pins 2    Pins 2   Pins 1    Pins 2
                              & 3      & 3       & 3      & 2       & 3

       CC800h     CE000h     Pins 1   Pins 2    Pins 2   Pins 1    Pins 2
                              & 2      & 3       & 3      & 2       & 3

       CD000h     CE000h     Pins 2   Pins 1    Pins 2   Pins 1    Pins 2
                              & 3      & 2       & 3      & 2       & 3

       CD800h     CE000h     Pins 1   Pins 1    Pins 2   Pins 1    Pins 2
                              & 2      & 2       & 3      & 2       & 3

      D0000h     D2000h     Pins 2   Pins 2    Pins 1   Pins 1    Pins 2
                              & 3      & 3       & 2      & 2       & 3

       D0800h     D2000h     Pins 1   Pins 2    Pins 1   Pins 1    Pins 2
                              & 2      & 3       & 2      & 2       & 3

       D1000h     D2000h     Pins 2   Pins 1    Pins 1   Pins 1    Pins 2
                              & 3      & 2       & 2      & 2       & 3

       D1800h     D2000h     Pins 1   Pins 1    Pins 1   Pins 1    Pins 2
                              & 2      & 2       & 2      & 2       & 3

       D4000h     D6000h     Pins 2   Pins 2    Pins 2   Pins 2    Pins 1
                              & 3      & 3       & 3      & 3       & 2

       D4800h     D6000h     Pins 1   Pins 2    Pins 2   Pins 2    Pins 1
                              & 2      & 3       & 3      & 3       & 2

       D5000h     D6000h     Pins 2   Pins 1    Pins 2   Pins 2    Pins 1
                              & 3      & 2       & 3      & 3       & 2

       D5800h     D6000h     Pins 1   Pins 1    Pins 2   Pins 2    Pins 1
                              & 2      & 2       & 3      & 3       & 2

       D8000h     DA000h     Pins 2   Pins 2    Pins 1   Pins 2    Pins 1
                              & 3      & 3       & 2      & 3       & 2

       D8800h     DA000h     Pins 1   Pins 2    Pins 1   Pins 2    Pins 1
                              & 2      & 3       & 2      & 3       & 2

       D9000h     DA000h     Pins 2   Pins 1    Pins 1   Pins 2    Pins 1
                              & 3      & 2       & 2      & 3       & 2

       D9800h     DA000h     Pins 1   Pins 1    Pins 1   Pins 2    Pins 1
                              & 2      & 2       & 2      & 3       & 2

       DC000h     DE000h     Pins 2   Pins 2    Pins 2   Pins 1    Pins 1
                              & 3      & 3       & 3      & 2       & 2

       DC800h     DE000h     Pins 1   Pins 2    Pins 2   Pins 1    Pins 1
                              & 2      & 3       & 3      & 2       & 2

       DD000h     DE000h     Pins 2   Pins 1    Pins 2   Pins 1    Pins 1
                              & 3      & 2       & 3      & 2       & 2

       DD800h     DE000h     Pins 1   Pins 1    Pins 2   Pins 1    Pins 1
                              & 2      & 2       & 3      & 2       & 2

       E0000h     E2000h     Pins 2   Pins 2    Pins 1   Pins 1    Pins 1
                              & 3      & 3       & 2      & 2       & 2

       E0800h     E2000h     Pins 1   Pins 2    Pins 1   Pins 1    Pins 1
                              & 2      & 3       & 2      & 2       & 2

       E1000h     E2000h     Pins 2   Pins 1    Pins 1   Pins 1    Pins 1
                              & 3      & 2       & 2      & 2       & 2

       E1800h     E2000h     Pins 1   Pins 1    Pins 1   Pins 1    Pins 1
                              & 2      & 2       & 2      & 2       & 2

  Note:Pins designated should be in the closed position.

