UNICOM ELECTRIC, INC.

8-BIT ETHERNET ADAPTER

NIC Type      Ethernet
Transfer Rate 10Mbps
Data Bus      8-bit ISA
Topology      Star
Wiring Type   Unshielded twisted pair

              AUI transceiver via DB-15 port
Boot ROM      Available

[Image]

                                DMA CHANNEL

      Channel            JP1A         JP1B          JP1C         JP1D

  »     Disabled         Open         Open          Open         Open

            1           Closed        Open         Closed        Open

            3            Open        Closed         Open        Closed

                             I/O BASE ADDRESS

       Address               JP2A             JP2B             JP2C

        200 - 21Fh           Open            Closed           Closed

        220 - 23Fh           Open            Closed            Open

        240 - 25Fh           Open             Open            Closed

        260 - 27Fh           Open             Open             Open

        300 - 31Fh          Closed           Closed           Closed

        320 - 33Fh          Closed           Closed            Open

  »      340 -35Fh          Closed            Open            Closed

        360 - 37Fh          Closed            Open             Open

                            INTERRUPT REQUEST

      IRQ         JP3A       JP3B      JP3C     JP3D      JP3E     JP3F

         2        Open       Open      Open     Open      Open     Closed

  »      3       Closed      Open      Open     Open      Open     Open

         4        Open      Closed     Open     Open      Open     Open

         5        Open       Open     Closed    Open      Open     Open

         6        Open       Open      Open     Closed    Open     Open

         7        Open       Open      Open     Open     Closed    Open

                               BOOT ROM ADDRESS

      Address     JP4A       JP4B      JP4C

       C0000 -    Open      Closed    Closed
       C3FFFh

       C4000 -    Open      Closed     Open
       C7FFFh

       C8000 -    Open       Open     Closed
       CBFFFh

       CC000 -    Open       Open      Open
       CFFFFh

  »    D0000 -   Closed     Closed    Closed
       D3FFFh

       D4000 -   Closed     Closed     Open
       D7FFFh

       D8000 -   Closed      Open     Closed
       DBFFFh

       DC000 -   Closed      Open      Open
       DFFFFh

                                 BOOT ROM

                Setting                                 JP5

  »               Disabled                       Pins 2 & 3 closed

                   Enabled                       Pins 1 & 2 closed

                                CABLE TYPE

                   Type                                  JP6

  »         Unshielded twisted pair               Pins 2 & 3 closed

        AUI transceiver via DB-15 port            Pins 1 & 2 closed

[Image]

                             DIAGNOSTIC LED(S)

     LED         Color         Status                Condition

    LED1          Red            On            Data is being received

    LED1          Red            Off         Data is not being received

    LED2         Green           On          Data is being transmitted

    LED2         Green           Off        Data is not being transmitted

    LED3         Yellow          On             Twisted pair network
                                                 connection is good

    LED3         Yellow          Off            Twisted pair network
                                                connection is broken

    LED4         Orange          On             Receive wire polarity
                                                      reversed

    LED4         Orange          Off        Receive wire polarity normal