STANDARD MICROSYSTEM CORPORATION

ARCNET-LC100

NIC Type              Arcnet
I/O Options           Parallel port
Data Bus              Parallel
Network Transfer Rate 2.5Mbps
Topology              Linear Bus/Star
Wiring Type           Unshielded twisted pair

                      RG-62A/U 93ohm coaxial
Boot ROM              Not available

[Image]

                                CONNECTIONS

         Function            Label            Function             Label

  To parallel port of         CN1      Unshielded twisted pair      CN4
  computer                             connector

  Parallel port               CN2      RG-62A/U 93ohm coaxial       CN5
                                       connector

  Unshielded twisted pair     CN3      10V DC power in              CN6
  connector

                        USER CONFIGURABLE SETTINGS

                    Setting                        Label       Position

  »   Internal terminator disabled                 SW1/1         Off

      Internal terminator enabled                  SW1/1          On

            Note:The terminator must always be disabled on star topology
            networks.

                                CABLE TYPE

                 Setting                                SW1/2

  »         RG-62A/U 93ohm coaxial                       On

            Unshielded twisted pair                      Off

                               NODE ADDRESS

  Setting   SW1/3  SW1/4   SW1/5   SW1/6   SW1/7   SW1/8   SW1/9   SW1/10

    1        On     Off     Off     Off     Off    Off     Off      Off

    2       Off     On      Off     Off     Off    Off     Off      Off

    3        On     On      Off     Off     Off    Off     Off      Off

    4       Off     Off     On      Off     Off    Off     Off      Off

    5        On     Off     On      Off     Off    Off     Off      Off

   250      Off     On      Off     On      On      On      On       On

   251       On     On      Off     On      On      On      On       On

   252      Off     Off     On      On      On      On      On       On

   253       On     Off     On      On      On      On      On       On

   254      Off     On      On      On      On      On      On       On

            Note: A total of 253 node address settings are available. The
            switches are a binary representation of the decimal node
            addresses. SW1/10 is the Most Significant Bit and switch
            SW1/3 is the Least Significant Bit. The switches have the
            following decimal values: SW1/10=128, SW1/9=64, SW1/8=32,
            SW1/7=16, SW1/6=8, SW1/5=4, SW1/4=2, SW1/3=1. Turn on the
            switches and add the values of the switches that are on to
            obtain the correct node address. (Off=0, On=1)

            Addresses 0 and 255 are reserved and should not be used.

                             DIAGNOSTIC LED(S)

   LED         Color          Status                Condition

  LED1     Unidentified         On                  Adapter is
                                            transmitting/receiving from
                                                  parallel port

  LED1     Unidentified      Blinking               Adapter is
                                         transmitting/receiving from both
                                            network and parallel port

  LED1     Unidentified        Off        Adapter is not receiving power
                                               or driver not loaded

  LED2     Unidentified         On                  Adapter is
                                            transmitting/receiving from
                                                     network

  LED2     Unidentified      Blinking               Adapter is
                                         transmitting/receiving from both
                                            network and parallel port

  LED2     Unidentified        Off        Adapter is not receiving power
                                               or driver not loaded

  LED3     Unidentified         On                 Data is being
                                           transmitted/received from the
                                                     computer

  LED3     Unidentified        Off               Data is not being
                                           transmitted/received from the
                                                     computer

  LED4     Unidentified         On          Network connection is good

  LED4     Unidentified      Blinking      Network connection is broken