LAVA COMPUTER MFG. INC.

LAVA ARCLINK

NIC Type      ARCnet
Transfer Rate 2.5Mbps
Data Bus      8-bit ISA
Topology      Linear bus
Wiring Type   RG62A/U 93ohm coaxial
Boot ROM      N/A

[Image]

                               NODE ADDRESS

  Node   SW1/1    SW1/2   SW1/3   SW1/4    SW1/5   SW1/6    SW1/7   SW1/8

   0       -       -        -       -       -        -       -        -

   1      On       On      On      On       On      On       On      Off

   2      Off      On      On      On       On      On       On      On

  255     Off     Off      Off     Off     Off      Off     Off      Off

       Note:Node address 0 is reserved 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 most
       significant bit and switch 8 the least significant bit. The
       switches have the following decimal values: switch 1=128, switch
       2=64, switch 3=32, switch 4=16, switch 5=8, switch 6=4, switch
       7=2, switch 8=1. Turn Off the appropriate switches and add the
       values of the ‘off’ switches to obtain the correct node address.

  BASE MEMORY SELECT

  Address     SW2/1

   E000h        On

   D000h       Off

       I/O ADDRESS SELECT

  Address    SW2/2      SW2/3

   2E0h        On        On

   2A0h        On        Off

   3E0h       Off        On

   3A0h       Off        Off

  FACTORY CONFIGURED SETTING

    Swtich         Setting

     SW2/4           N/A

                             INTERRUPT SELECT

       IRQ            JP1            JP2           JP3           JP4

  »      IRQ3         Open         Closed         Open           Open

         IRQ2         Open          Open          Open          Closed

         IRQ4        Closed         Open          Open           Open

         IRQ5         Open          Open         Closed          Open

                             DIAGNOSTICS LEDS

    LED        Color         Status                 Condition

    LED1        Red            On        Accessing on board memory or I/O

    LED1        Red         Blinking             System power up

    LED1        Red            On          Transferring to and from the
                                                     network

    LED2       Green           On          Transmitting to another node

    LED2       Green        Blinking          No node is accessable

    LED2       Green           On        Coax Cable connected to a active
                                                     network

            Note:LED2 will blink at a rate based on the NODE address. If
            the NODE address is low, LED2 will blink at a slow rate. If
            the NODE address is above 128 then, LED2 will blink at a rate
            too high to be seen by the human eye.