
CABLETRON SYSTEMS, INC.

E4020 (COAX/AUI)

Card Type                 Network Interface Card
NIC Type                  Ethernet
Maximum Onboard Memory    Unidentified
Boot ROM                  Not available
Network Transfer Rate     10Mbps
Topology                  Linear Bus
Wiring Type               RG-58A/U 50ohm coaxial, AUI transceiver via DB15
                          port
Data Bus                  None

[Image]

                                CONNECTIONS

         Function            Label            Function            Label

  24 wire ribbon connector    CN1      BNC connector               CN3
  to control board

  AUI connector               CN2

                        USER CONFIGURABLE SETTINGS

                  Function                      Label        Position

      SQE enabled                                SW1            On

     SQE disabled                               SW1            Off

                       CABLE TYPE SELECTION

               Type                             SW2

  AUI transceiver via DB-15 port                Off

  RG-58A/U 50ohm coaxial                         On

                             DIAGNOSTIC LED(S)

   LED      Color      Status                    Condition

  LED1      Yellow     Blinking           Data is being received

  LED1      Yellow       Off            Data is not being received

  LED2      Green        On                     Power is on

  LED2      Green        Off                   Power is off

  LED3      Green      Blinking          Data is being transmitted

  LED3      Green        Off           Data is not being transmitted

  LED4       Red       Blinking        Collision detected on network

  LED4       Red         Off         No collision detected on network

