XINETRON, INC.

XI222

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

              Linear bus
Wiring Type   Shielded/Unshielded Twisted Pair
Boot ROM      Available

[Image]

                               NODE ADDRESS

  Node   SW2/1    SW2/2   SW2/3   SW2/4    SW2/5   SW2/6    SW2/7   SW2/8

   0       -       -        -       -       -        -       -        -

   1      On       On      On      On       On      On       On      Off

   2      On       On      On      On       On      On      Off      On

   3      On       On      On      On       On      On      Off      Off

   4      On       On      On      On       On      Off      On      On

  251     Off     Off      Off     Off     Off      On      Off      Off

  252     Off     Off      Off     Off     Off      Off      On      On

  253     Off     Off      Off     Off     Off      Off      On      Off

  254     Off     Off      Off     Off     Off      Off     Off      On

  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
       8 is the Least Significant Bit and switch 1 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 off the
       switches and add the values of the off switches to obtain the
       correct node address. (On=0, Off=1)

                   RESPONSE AND RECONFIGURATION TIMEOUTS

  Response Time   Ide Time      Reconfiguration        JP1         JP2
                                     Time

  »      78µs        86µs            840ms            Open        Open

        285µs       316µs           1680ms            Open       Closed

        563µs       624µs           1680ms           Closed       Open

        1130µs      1237µs          1680ms           Closed      Closed

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

                        TWISTED PAIR CONFIGURATION

             Wire Pair                     JP3                 JP4

    Network uses first pair (two        Pins 2 & 3      Pins 2 & 3 closed
    inside wires on connector)           closed

   Network uses second pair (two        Pins 1 & 2      Pins 1 & 2 closed
    outside wires on connector)          closed

  Note: This table assumes that the cable used is RJ-11 in a 4-wire
  arrangement.

                             INTERRUPT REQUEST

    IRQ         JP5A         JP5A        JP5A         JP5A        JP5A

  »     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       SW1/1    SW1/2     SW1/3    SW1/4     SW1/5     SW1/6

      260-26Fh      Off       On       On       Off       Off       On

      290-29Fh      Off       On       Off       On       On        Off

  »   2E0-2EFh      Off       On       Off      Off       Off       On

      2F0-2FFh      Off       On       Off      Off       Off       Off

      300-30Fh      Off      Off       On        On       On        On

      350-35Fh      Off      Off       On       Off       On        Off

      380-38Fh      Off      Off       Off       On       On        On

      3E0-3EFh      Off      Off       Off      Off       Off       On

                 BASE MEMORY ADDRESS AND BOOT ROM ADDRESS

    Base Address         Boot ROM      SW1/7    SW1/8    SW1/9    SW1/10
                         Address

      C0000-C07FFh    C2000-C3FFFh      Off      Off      On        On

  »   D0000-D07FFh    D2000-D3FFFh      Off      Off      On        Off

      E0000-E07FFh    E2000-E3FFFh      Off      Off      Off       On

                              DIAGNOSTIC LED

    LED        Color        Status                  Condition

   LED1        Yellow      Blinking     Card is not connected to network

   LED1        Yellow         On                Normal operation

   LED1        Yellow      Flashing               Data is being
                                              transmitted/received

  Note: Location of LED1 is unknown.