ACTINET SYSTEMS, INC.

ARCTALK NB

NIC Type      ARCnet
Transfer Rate 2.5Mbps
Data Bus      32-bit NuBus
Topology      Star
Wiring Type   RG62/U 93ohm coaxial
Boot ROM      Available

[Image]

           SEGMENT LENGTH AND RESPONSE/RECONFIGURATION TIMEOUTS

    Maximum       Response       Reconfig.         ET1           ET2
    Length         Time            Time

  22,000 feet     74.7µs           840ms        Pins 1 & 2    Pins 1 & 2
                                                 closed         closed

  96,000 feet     283.4µs         1680ms        Pins 2 & 3    Pins 1 & 2
                                                 closed         closed

    195,000       561.8µs         1680ms        Pins 1 & 2    Pins 2 & 3
     feet                                        closed         closed

    393,000      1118.6µs         1680ms        Pins 2 & 3    Pins 2 & 3
     feet                                        closed         closed

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

                             DIAGNOSTIC LED(S)

    LED        Color        Status                  Condition

   LED1        Green          On                Normal operation

   LED1        Green       Blinking      There is a break in the network
                                         (not necessarily at this card)

   LED1        Green         Off                 Fault detected

  Note: If a fault is detected, it can be any one or a combination of the
  following: Card is not attached to an active network, the card is not
  selected in the control panel, AppleTalk is not enabled in the Chooser,
  the hybrid transceiver on the card may be defective, there are no
  active stations on the network, the Mac's -12VDC power supply is
  malfunctioning, the hub is defective, or there is a break in the
  network cable.