
NETWORK INTERFACE TECHNOLOGY CORPORATION

ARCNET ADAPTER

NIC Type      ARCnet
Transfer Rate 2.5Mbps
Data Bus      8-bit ISA
Topology      Star

              Linear Bus
Wiring Type   Unshielded twisted pair

              RG58A/U 50ohm coaxial
Boot ROM      Available

[Image]

                                CABLE TYPE

           Type                     JP2/A                   JP2/B

   RG58A/U 50ohm coaxial            Open                   Closed

  Unshielded twisted pair          Closed                   Open

                     I/O ADDRESS CONFIGURATION

  Address Range       SW2/6            SW2/7            SW2/8

   260h - 26Fh          On               On              On

   290h - 29Fh         Off               On              On

   2E0h - 2EFh          On              Off              On

   2F0h - 2FFh         Off              Off              On

   300h - 30Fh          On               On              Off

   350h - 35Fh         Off               On              Off

   380h - 38Fh          On              Off              Off

   3E0h - 3EFh         Off              Off              Off

                     BASE MEMORY ADDRESS CONFIGURATION

  RAM Address      PROM       SW2/1    SW2/2    SW2/3     SW2/4    SW2/5
                 Address

   C0000h -      C2000h -      On        On       On       On        On
    C07FFh        C3FFFh

   C0800h -      C2000h -      Off       On       On       On        On
    C0FFFh        C3FFFh

   C1000h -      C2000h -      On       Off       On       On        On
    C17FFh        C3FFFh

   C1800h -      C2000h -      Off      Off       On       On        On
    C1FFFh        C3FFFh

   C4000h -      C6000h -      On        On      Off       On        On
    C47FFh        C7FFFh

   C4800h -      C6000h -      Off       On      Off       On        On
    C4FFFh        C7FFFh

   C5000h -      C6000h -      On       Off      Off       On        On
    C57FFh        C7FFFh

   C5800h -      C6000h -      Off      Off      Off       On        On
    C5FFFh        C7FFFh

   CC000h -      CE000h -      On        On       On       Off       On
    CC7FFh        CFFFFh

   CC800h -      CE000h -      Off       On       On       Off       On
    CCFFFh        CFFFFh

   CD000h -      CE000h -      On       Off       On       Off       On
    CD7FFh        CFFFFh

   CD800h -      CE000h -      Off      Off       On       Off       On
    CDFFFh        CFFFFh

   D0000h -      D2000h -      On        On      Off       Off       On
    D07FFh        D3FFFh

   D0800h -      D2000h -      Off       On      Off       Off       On
    D0FFFh        D3FFFh

   D1000h -      C2000h -      On       Off      Off       Off       On
    D17FFh        D3FFFh

   D1800h -      D2000h -      Off      Off      Off       Off       On
    D1FFFh        D3FFFh

   D4000h -      D6000h -      On        On       On       On       Off
    D46FFh        D7FFFh

   D4800h -      C6000h -      Off       On       On       On       Off
    D4FFFh        D7FFFh

   D5000h -      D6000h -      On       Off       On       On       Off
    D57FFh        D7FFFh

   D5800h -      D6000h -      Off      Off       On       On       Off
    D5FFFh        D7FFFh

   D8000h -      DA000h -      On        On      Off       On       Off
    D87FFh        DBFFFh

   D8800h -      DA000h -      Off       On      Off       On       Off
    D8FFFh        DBFFFh

   D9000h -      DA000h -      On       Off      Off       On       Off
    D97FFh        DBFFFh

   D9800h -      DA000h -      Off      Off      Off       On       Off
    D9FFFh        DBFFFh

   DC000h -      DE000h -      On        On       On       Off      Off
    DC7FFh        DFFFFh

   DC800h -      DE000h -      Off       On       On       Off      Off
    DCFFFh        DFFFFh

   DD000h -      DE000h -      On       Off       On       Off      Off
    DD7FFh        DFFFFh

   DD800h -      DE000h -      Off      Off       On       Off      Off
    DDFFFh        DFFFFh

   E0000h -      E2000h -      On        On      Off       Off      Off
    E07FFh        E3FFFh

   E0800h -      E2000h -      Off       On      Off       Off      Off
    E0FFFh        E3FFFh

   E1000h -      E2000h -      On       Off      Off       Off      Off
    E17FFh        E3FFFh

   E1800h -      E2000h -      Off      Off      Off       Off      Off
    E1FFFh        E3FFFh

                        INTERRUPT SELECT

    IRQ       JP1/D      JP1/E      JP1/F      JP1/G     JP1/H

   IRQ2      Closed      Open       Open       Open       Open

   IRQ3       Open      Closed      Open       Open       Open

   IRQ4       Open       Open      Closed      Open       Open

   IRQ5       Open       Open       Open      Closed      Open

   IRQ7       Open       Open       Open       Open      Closed

            ROM CONFIGURATION

       Setting              JP1/A

  Boot ROM enabled          Closed

  Boot ROM disabled          Open

                     RESPONSE/RECONFIGURATION TIMEOUTS

    Response       IdleTime        Reconfig.       JP1/B         JP1/C
     Time                            Time

     78 m            86 m           840 m           Open         Open

     258 m          316 m           1680 m          Open        Closed

     563 m          624 m           1680 m         Closed        Open

    1130 m          1237 m          1680 m         Closed       Closed

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

          TOPOLOGY

     Type         JP2/C

     Star        Closed

  Linear Bus      Open

[Image]

                             DIAGNOSTIC LED(S)

     LED         Color         Status                 Condition

    LED1          Red          Solid or      Data transmission occurring
                              Blinking

    LED2         Green        Blinking             Reconfiguration

    LED2         Green           On             Good connection made

    LED1 &       Red &           Off             Call Tech. Support
    LED2         Green

