UNICOM ELECTRIC, INC.

16-BIT ETHERNET ADAPTER

NIC Type      Ethernet
Transfer Rate 10Mbps
Data Bus      16-bit ISA
Topology      Star
Wiring Type   Unshielded twisted pair

              AUI transceiver via DB-15 port
Boot ROM      Available

[Image]

                            COMPATIBILITY MODE

                Setting                                 JP1

  »               Disabled                       Pins 1 & 2 closed

                   Enabled                       Pins 2 & 3 closed

  Note:On some systems the data bus timing is not truly IBM PC/AT
  compatible. If the card is not initializing enabling compatibility mode
  may allow the card to operate properly.

                             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

      2/9      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 - C3FFFh       Closed           Closed           Closed

       C4000 - C7FFFh       Closed           Closed            Open

       C8000 - CBFFFh       Closed            Open            Closed

       CC000 - CFFFFh       Closed            Open             Open

  »    D0000 - D3FFFh        Open            Closed           Closed

       D4000 - D7FFFh        Open            Closed            Open

       D8000 - DBFFFh        Open             Open            Closed

       DC000 - DFFFFh        Open             Open             Open

                                 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