UNIDENTIFIED

8-BIT THREE-IN-ONE BOARD

NIC Type      Ethernet
Transfer Rate 10Mbps
Data Bus      8-bit ISA
Topology      Linear bus
Wiring Type   AUI transceiver via DB-15 port

              RG-58A/U 50ohm coaxial

              Unshielded twisted pair
Boot ROM      Available

[Image]

                              ADDRESS SELECT

    I/O Address          Base Memory           W2                W3
                          Address

  »       300h             C800h             Closed            Closed

          320h             CC00h              Open             Closed

          340h             D000h             Closed             Open

          360h             D400h              Open              Open

                                 BOOT ROM

                 Setting                                W1

  »               Disabled                             Open

                   Enabled                            Closed

                                CABLE TYPE

             Type                        W8                   W9

  »    RG-58A/U 50ohm coaxial    Pins 1 & 2 closed     Pins 1 & 2 closed

         AUI transceiver via     Pins 2 & 3 closed     Pins 1 & 2 closed
             DB-15 port

       Unshielded twisted pair   Pins 2 & 3 closed     Pins 2 & 3 closed

                             INTERRUPT SELECT

       IRQ             W4            W5            W6             W7

  »      IRQ3        Closed         Open          Open           Open

         IRQ2         Open          Open          Open          Closed

         IRQ4         Open         Closed         Open           Open

         IRQ5         Open          Open         Closed          Open

                                 LINK TEST

                Setting                                 W10

  »                Enabled                       Pins 1 & 2 closed

                  Disabled                       Pins 2 & 3 closed

                           DIAGNOSTIC LED(S)

   LED       Color       Status                 Condition

  LED1      Yellow         On         Data is not being transmitted

  LED1      Yellow      Blinking        Data is being transmitted

  LED2        Red          On           Data is not being received

  LED2        Red       Blinking          Data is being received

  LED3       Green         On           Network connection is good

  LED3       Green        Off          Network connection is broken