CABLETRON SYSTEMS, INC.

E2020/-X (Coaxial)

NIC Type      Ethernet
Transfer Rate 10Mbps
Data Bus      8-bit ISA
Topology      Linear Bus
Wiring Type   RG-58A/U 50ohm coaxial

              AUI transceiver via DB-15 port
Boot ROM      Not Available

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                             INTERRUPT REQUEST

    IRQ        JP1A      JP1B      JP1C       JP1D      JP1E       JP1F

      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

                             I/O BASE ADDRESS

          Address                    JP2                     JP3

  »          220h                  Closed                  Closed

             280h                  Closed                   Open

             300h                   Open                   Closed

             380h                   Open                    Open

                                CABLE TYPE

              Type                      SW1                  JP7

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

      AUI transceiver via DB-15         Off           Pins 2 & 3 Closed
                port

  Note:JP7 is used to enabled the DC converter on the card to supply
  power to coaxial networks.

                      SIGNAL QUALITY ERROR (SQE) TEST

                 Setting                                 SW2

  »                Disabled                              Off

                    Enabled                              On

  Note:Signal Quality Error (SQE) is a test of the collision circuitry
  and path.

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                             DIAGNOSTIC LED(S)

    LED          Color         Status                Condition

     1           Green       On/Blinking     Data is being transmitted

     1           Green          Off        Data is not being transmitted

     2            Red        On/Blinking   Collision detected on network

     2            Red           Off               Normal operation

     3          Yellow       On/Blinking       Data is being received

     3          Yellow          Off          Data is not being received

     4           Green           On           Card is receiving power

     4           Green          Off         Card is not receiving power