DATAPOINT CORPORATION

ARCNETPLUS HUB

Card Type             Arcnet hub
Network Transfer Rate 2.5Mbps/20Mbps
Data Bus              16-bit ISA
Topology              Star
Wire Type             RG-62A/U 93ohm coaxial
Boot ROM              Not available

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                                CONNECTIONS

        Function          Label             Function              Label

  RG-62A/U 93ohm           CN1       RG-62A/U 93ohm coaxial        CN4
  coaxial port 1                     port 4

  RG-62A/U 93ohm           CN2       Internal Datapoint            CN5
  coaxial port 2                     proprietary coaxial

  RG-62A/U 93ohm           CN3
  coaxial port 3

            Note:CN5 is used to connect the hub card to an ARCNET, ARCNET
            PLUS, ARCNET HUB, or another ARCNETPLUS card installed in the
            same system.

                             DIAGNOSTIC LED(S)

    LED        Color       Status                  Condition

    LED1       Green         On       Port 1 is transmitting/receiving at
                                                    2.5Mbps

    LED1       Green         Off                 Port 1 is not
                                       transmitting/receiving at 2.5Mbps

    LED2       Yellow        On       Port 1 is transmitting/receiving at
                                                    20Mbps

    LED2       Yellow        Off                 Port 1 is not
                                       transmitting/receiving at 20Mbps

    LED3       Green         On       Port 2 is transmitting/receiving at
                                                    2.5Mbps

    LED3       Green         Off                 Port 2 is not
                                       transmitting/receiving at 2.5Mbps

    LED4       Yellow        On       Port 2 is transmitting/receiving at
                                                    20Mbps

    LED4       Yellow        Off                 Port 2 is not
                                       transmitting/receiving at 20Mbps

    LED5       Green         On       Port 3 is transmitting/receiving at
                                                    2.5Mbps

    LED5       Green         Off                 Port 3 is not
                                       transmitting/receiving at 2.5Mbps

    LED6       Yellow        On       Port 3 is transmitting/receiving at
                                                    20Mbps

    LED6       Yellow        Off                 Port 3 is not
                                       transmitting/receiving at 20Mbps

    LED7       Green         On       Port 4 is transmitting/receiving at
                                                    2.5Mbps

    LED7       Green         Off                 Port 4 is not
                                       transmitting/receiving at 2.5Mbps

    LED8       Yellow        On       Port 4 is transmitting/receiving at
                                                    20Mbps

    LED8       Yellow        Off                 Port 4 is not
                                       transmitting/receiving at 20Mbps

    LED9       Green         On                 Internal port is
                                       transmitting/receiving at 2.5Mbps

    LED9       Green         Off              Internal port is not
                                       transmitting/receiving at 2.5Mbps

   LED10       Yellow        On                 Internal port is
                                       transmitting/receiving at 20Mbps

   LED10       Yellow        Off              Internal port is not
                                       transmitting/receiving at 20Mbps

            Note:The locations and colors of the individual LEDs within
            each pair may be reversed from the diagram.